121420141116100005442_2

ROADWAY DESIGN MANUAL

Version 2.0

November 2014


Version 2.0 November 2014

Roadway Design Manual

Version 2.0 November 2014

Abu Dhabi City Municipality

PO Box 263

Abu Dhabi, United Arab Emirates

Copyright 2014, Abu Dhabi City Municipality. All Rights Reserved.

No part of this document may be reproduced, distributed, or transmitted in any form or by any means without the prior written permission of the Abu Dhabi City Municipality


Version 2.0 Part 0 Table of Contents November 2014

Page 1 of 18

TABLE OF CONTENTS

PART 1 ROADWAY DEVELOPMENT

SECTION 100 - GENERAL INFORMATION DESCRIPTION PAGE NO. 101 PURPOSE 100-1

101.01 INTRODUCTION 100-1

102 CONTENTS AND ORGANIZATION 100-3

102.01 PART 1 : ROADWAY DEVELOPMENT 100-3

102.02 PART 2 : ROADWAY DESIGN 100-3

102.03 PART 3 : STRUCTURE DESIGN 100-4

103 INTERIM ADVICE NOTES AND TECHNICAL CIRCULARS 100-4

103.01 GENERAL 100-4

103.02 INTERIM ADVICE NOTES AND TECHNCICAL CIRCULARS - GENERAL 100-4

103.03 INTERIM ADVICE NOTES AND TECHNCICAL CIRCULARS - SPECIFIC 100-4

104 ROADWAY CLASSIFICATIONS 100-5

104.01 ROADWAY SYSTEM 100-5

104.01.01 Rural Roadways 100-5

104.01.02 Urban Roadways 100-6

104.02 DESIGN 100-8

104.03 CRITERIA FOR DESIGN CLASS DESIGNATION 100-8

105 ROUTE DESIGNATIONS 100-10

SECTION 200 - DESIGN CONCEPT DEVELOPMENT DESCRIPTION PAGE NO. 201 TRANSPORTATION PLANNING 200-1


201.02 INTERNAL ROADS AND INFRASTRUCTURE DIRECTORATE (IRID) 200-1

201.03 TOWN PLANNING SECTOR 200-1

201.04 MAPPING 200-1

201.04.01 General 200-2

201.04.02 Topographic Mapping 200-2

201.05 PROJECT LIMITS 200-4

201.06 PROJECT IDENTIFICATION AND NUMBERING 200-8

201.07 INTER-DEPARTMENTAL COORDINATION 200-8



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202 ENVIRONMENTAL FACTORS INFLUENCING DESIGN 200-8


202.02 SOCIO ECONOMIC/COMMUNITY RESOURCE DATA 200-9

202.02.01 Land Use 200-9

202.02.02 Growth Projections 200-10

202.02.03 Public Services 200-10

202.02.04 Schools 200-11

202.02.05 Mosques 200-13

202.02.06 Malls 200-13

202.02.07 Hospitals 200-13

202.02.08 Utilities 200-13

202.02.09 Security 200-14

202.02.10 Commercial Activities 200-15

202.02.11 Economics 200-15

202.02.12 Local Transportation/Circulation 200-15

202.02.13 Parking Requirements 200-15

202.02.14 Recreation 200-16

202.02.15 Historical Site Identification and Preservation 200-17

202.03 NATURAL/ENVIRONMENTAL RESOURCE DATA 200-17

202.03.01 Protection of Existing Amenities 200-17

202.03.02 Topography 200-18

202.03.03 Water 200-19

202.03.04 Flora and Fauna 200-19

202.03.05 Air Quality 200-19

202.03.06 Noise 200-19

202.03.07 Visual/Aesthetic 200-19

202.03.08 Hazardous Materials 200-19

202.04 ENVIRONMENTAL PERMIT 200-20

203 TECHNICAL INVESTIGATIONS 200-20


203.02 GEOTECHNICAL 200-20

203.03 TRAFFIC DATA COLLECTION 200-21

203.03.01 Introduction 200-21

203.03.02 Traffic Projections 200-21

203.03.03 Procedures for Collecting Traffic Volumes 200-22

203.03.03.01 Automatic Traffic Counts 200-22

203.03.03.02 Classified Turning Movement Counts 200-22

203.03.03.03 Automatic Speed Surveys 200-23



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203.03.03.04 Other Surveys 200-23

203.04 SURVEY CONTROL/FIELD SURVEYS 200-24


203.04.02 Horizontal Control 200-24

203.04.03 Vertical Control 200-24

203.04.04 Coordinate System 200-24

203.04.05 Field Surveys 200-25

203.05 DRAINAGE SURVEYS 200-25

SECTION 300 - DESIGN CONCEPT REPORT DESCRIPTION PAGE NO.

301 CONTENTS 300-1

301.01 FORMAT 300-3

302 EXECUTIVE SUMMARY 300-6

303 INTRODUCTION 300-6

304 TRAFFIC ANALYSIS 300-6

305 DESCRIPTION OF ALTERNATIVES 300-7

306 DESIGN DATA 300-8

307 TYPICAL SECTIONS 300-9

308 GEOMETRICS 300-9

309 INTERCHANGE/INTERSECTION CONFIGURATION 300-9

310 PARKING STUDY 300-10

311 HYDROLOGY AND HYDRAULICS 300-10

312 SUBSURFACE INVESTIGATIONS 300-11

313 BRIDGE TYPE SELECTION 300-12

313.01 BRIDGES OVER WATERWAYS 300-13

313.02 WIDENINGS/REHABILITATION 300-13

313.03 BRIDGES AND HIGHWAY STRUCTURES CONCEPT REPORT 300-14

314 TUNNEL SELECTION CRITERIA 300-15

315 UTILITY IMPACT ANALYSIS 300-16

316 SOCIO - ECONOMIC ANALYSIS 300-17

317 AGRICULTURE IMPACT 300-17

318 PUBLIC FEEDBACK 300-18

319 SIGNING AND PAVEMENT MARKINGS 300-18

320 LIGHTING CONCEPTS 300-19

321 CONSTRUCTION STAGING 300-19

322 COST ESTIMATE 300-19



Page 4 of 18

323 CONCLUSIONS/RECOMMENDATIONS 300-21

324 APPENDIX 300-21

325 DRAWINGS 300-21



Page 5 of 18

TABLE OF CONTENTS

PART 2 ROADWAY DESIGN

SECTION 100 - GENERAL DESIGN CRITERIA DESCRIPTION PAGE NO. 101 DESIGN SPEED 100-1

102 DESIGN VEHICLES 100-2

103 DESIGN TRAFFIC 100-3

103.01 DESIGN PERIOD 100-3

103.02 RELATION TO DESIGN 100-3

104 ROADWAY CAPACITY 100-4

104.01 DESIGN CAPACITIES (VEHICLES) 100-4


104.01.02 LOS Definitions for Urban Roads 100-4

104.01.03 LOS Definitions for Freeway and Multi-Lane Roads 100-5

104.01.04 LOS Definitions for Merge/Diverge and Weaving Sections 100-5

104.01.05 LOS Definitions for Signalised Intersections 100-6

104.01.06 LOS Definitions for Priority Intersections and Roundabouts 100-7

104.01.07 LOS Definitions at Cycle Facilities 100-7

104.01.08 LOS Definitions for Pedestrian Facilities 100-8

104.01.09 LOS Definitions and Standards for Public Transportation Services 100-9

105 CONTROL OF ACCESS 100-9

105.01 GENERAL 100-9

105.02 ACCESS CONTROL DESIGN CRITERIA 100-10

105.02.01 Primary Roadways 100-10

105.02.02 Secondary Roadways (ADT > 2,500) 100-11

105.02.03 Secondary Roadways (ADT < 2,500) 100-11

105.03 USE OF FRONTAGE ROADS 100-12

105.04 PROTECTION OF ACCESS RIGHTS 100-13

105.04.01 Relation of Access Opening to a Median Opening 100-13

105.05 MAINTAINING LOCAL COMMUNITY ACCESS 100-13

105.06 PEDESTRIAN FACILITIES 100-13

105.06.01 General Policy 100-13

105.06.02 Sidewalks and Walkways 100-14

105.07 PEDESTRIAN GRADE SEPARATIONS 100-15

105.08 GUIDELINES FOR THE LOCATION AND DESIGN OF KERB RAMPS 100-15

106 DEPARTURES FROM STANDARDS 100-15



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107 ROAD SAFETY AUDITS 100-18

108 BICYCLE FACILITIES 100-18

108.01 GENERAL 100-18

108.02 SPECIAL BICYCLE FACILITIES 100-19

108.03 BICYCLE CHARACTERISTICS 100-20

108.04 BICYCLES AT INTERSECTIONS 100-20

109 ADDITIONAL STANDARDS, GUIDELINES AND REFERENCES 100-20

SECTION 200 - GEOMETRIC DESIGN STANDARDS DESCRIPTION PAGE NO.

201 SIGHT DISTANCE 200-1

201.01 GENERAL 200-1

201.02 PASSING SIGHT DISTANCE 200-1

201.03 STOPPING SIGHT DISTANCE 200-2

201.04 STOPPING SIGHT DISTANCE ON HORIZONTAL CURVES 200-3

201.05 DECISION SIGHT DISTANCE 200-3

202 SUPERELEVATION 200-4

202.01 GENERAL 200-4

202.02 SUPERELEVATION STANDARDS 200-5

202.03 AXIS OF ROTATION 200-8

202.04 SUPERELEVATION TRANSITION 200-8

202.05 SUPERELEVATION OF COMPOUND CURVES 200-12

203 HORIZONTAL ALIGNMENT 200-13

203.01 GENERAL 200-13

203.02 STANDARDS FOR HORIZONTAL CURVATURE 200-13

204 VERTICAL ALIGNMENT 200-14

204.01 GENERAL 200-14

204.02 VERTICAL ALIGNMENT POSITION WITH RESPECT TO CROSS SECTION 200-15

204.03 STANDARDS FOR GRADES 200-15

204.04 VERTICAL CURVES 200-16

204.05 LONG SUSTAINED GRADES 200-19

204.06 STRUCTURE GRADE LINE 200-20

204.07 SEPARATE PROFILE GRADE LINES 200-20

205 COORDINATION OF HORIZONTAL AND VERTICAL ALIGNMENTS 200-20

206 PAVEMENT TRANSITIONS 200-21

206.01 GENERAL 200-21

206.02 TRANSITIONS FOR MULTI-LANE ROADWAYS 200-21



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207 BRIDGES AND GRADE SEPARATION STRUCTURES 200-22

207.01 CLEAR WIDTH 200-22

207.02 CROSS SLOPE 200-23

208 PEDESTRIAN FACILITIES 200-23

208.01 SIDEWALKS 200-23

208.02 PEDESTRIAN GRADE SEPARATIONS 200-25

208.03 PEDESTRIAN UNDERPASSES 200-25

208.04 CYCLE TRACKS 200-25

209 KERBS 200-27

209.01 GENERAL 200-27

209.02 TYPES AND USES 200-27

209.03 KERB PARAMETERS 200-28

210 BUS STOPS AND TAXI STOPS 200-28

210.01 BUS STOPS 200-28

210.02 TAXI STOPS 200-29

211 PARKING 200-29

211.01 GENERAL 200-29

211.02 PARKING AREAS 200-30

211.03 ON STREET PARKING SPACES 200-31

211.04 PARKING LOTS 200-31

211.05 PARKING DEMAND/SUPPLY ANALYSIS 200-31

SECTION 300 - GEOMETRIC CROSS SECTIONS DESCRIPTION PAGE NO.

301 TRAVELLED WAY STANDARDS 300-1

301.01 TRAVELLED WAY WIDTH 300-1

301.02 TRAVELLED WAY CROSS SLOPES 300-1

301.03 TRAVELLED WAY PAVEMENT TYPE 300-1

302 SHOULDER STANDARDS 300-1

302.01 SHOULDER WIDTH STANDARDS 300-1

302.02 SHOULDER CROSS SLOPES 300-2

303 SIDE SLOPE STANDARDS 300-3

303.01 SIDE SLOPE VALUES 300-3

303.02 SLOPE CLEARANCE FROM RIGHT OF WAY 300-3

304 MEDIAN STANDARDS 300-4

305 HORIZONTAL AND VERTICAL CLEARANCES 300-4

305.01 HORIZONTAL CLEARANCES 300-4



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305.02 VERTICAL CLEARANCES 300-4

305.03 TUNNEL CLEARANCES 300-5

306 CLEAR ZONE CONCEPTS 300-5

306.01 APPLICATION OF CLEAR ZONE 300-9

306.01.01 Roadside Terrain: Foreslope 300-9

306.01.02 Roadside Terrain: Backslope 300-10

306.01.03 Roadside Terrain: Cross Slope 300-10

306.01.04 Roadside Terrain: Ditch 300-10

307 BARRIERS 300-13

307.01 BARRIER NEED 300-13

307.02 BARRIER DESIGN 300-14

307.03 ROADSIDE BARRIER TYPES AND FEATURES 300-16

307.04 ROADSIDE BARRIER PLACEMENT 300-20

307.04.01 Lateral Placement 300-20

307.04.02 Effects of Roadside Terrain 300-21

307.04.03 Barrier Length Design 300-22

307.05 MEDIAN BARRIERS 300-26

307.05.01 Median Barrier Warrants 300-26

307.05.02 Median Barrier Types and Features 300-26

307.06 MEDIAN BARRIER PLACEMENT 300-28

307.07 END TREATMENTS AND CRASH CUSHIONS 300-29

307.07.01 End Treatments 300-29

307.07.02 Crash Cushions 300-29

307.08 TESTING AND FUTURE MAINTENANCE 300-32

308 REFERENCES 300-33

SECTION 400 - AT GRADE INTERSECTIONS (JUNCTIONS) DESCRIPTION PAGE NO.

401 GENERAL 400-1

402 DESIGN CONSIDERATIONS 400-1

403 AT GRADE INTERSECTION TYPES 400-1

404 CHANNELIZATION 400-5

404.01 PREFERENCE TO MAJOR MOVEMENTS 400-6

404.02 AREAS OF CONFLICT 400-6

404.03 INTERSECTION ANGLES 400-6

404.04 POINTS OF CONFLICT 400-7

404.05 SPEED-CHANGE LANES 400-7



Page 9 of 18

404.06 TURNING MOVEMENTS 400-7

404.07 REFUGE AREAS 400-7

404.08 PROHIBITED TURNS 400-7

404.09 EFFECTIVE SIGNAL CONTROL 400-7

404.10 INSTALLATION OF TRAFFIC CONTROL DEVICES 400-8

404.11 GUIDELINES 400-8

405 DESIGN VEHICLES 400-8

405.01 SWEPT PATH ANALYSIS 400-8

405.02 DESIGN VEHICLES 400-8

406 INTERSECTION DESIGN STANDARDS 400-12

406.01 SIGHT DISTANCE 400-12

406.02 INTERSECTION CONTROL 400-17

406.03 EFFECT OF SKEW 400-24

406.04 EFFECT OF VERTICAL PROFILES 400-25

406.05 LEFT-TURN CHANNELIZATION 400-25

406.06 RIGHT-TURN CHANNELIZATION 400-26

406.07 TRAFFIC ISLANDS 400-27

407 ROUNDABOUT DESIGN 400-27

407.01 GENERAL 400-27

407.02 LOCATION OF ROUNDABOUTS 400-32

407.03 ROUNDABOUT SELECTION 400-33

SECTION 500 - GRADE SEPARATED INTERCHANGES DESCRIPTION PAGE NO.

501 GENERAL 500-1

502 INTERCHANGE WARRANTS 500-1

503 DESIGN CONSIDERATIONS 500-1

504 INTERCHANGE TYPES 500-2

504.01 THREE-LEG INTERCHANGES 500-2

504.02 FOUR-LEG INTERCHANGES 500-4

505 INTERCHANGE DESIGN PROCEDURES 500-17

506 INTERCHANGE DESIGN STANDARDS 500-17

507 RAMP DESIGN STANDARDS 500-21

508 ENTRANCE/EXIT RAMP DESIGN STANDARDS 500-25

509 RAMP TERMINAL DESIGN 500-32



Page 10 of 18

SECTION 600 - STRUCTURAL PAVEMENT DESIGN DESCRIPTION PAGE NO.

601 INTRODUCTION 600-1

602 STRUCTURAL PAVEMENT SECTION DESIGN 600-1

602.01 GENERAL 600-1

602.02 DESIGN REQUIREMENTS 600-1

602.03 PAVEMENT DESIGN METHOD - EMPIRICAL 600-2

602.04 PAVEMENT DESIGN REPORT 600-11

602.05 QUALITY ASSURANCE - PAVEMENT DESIGN 600-13

603 ADM ACCEPTANCE CRITERIA FOR MECHANICALLY STABILIZED FLEXIBLE

PAVEMENTS USING GEOGRIDS 600-15


603.02 DEFINITIONS AND TERMINOLOGY 600-16

603.03 ACCEPTANCE CRITERIA 600-17

603.03.01 Verification of Material Characteristics 600-18

603.03.02 Full-Scale Accelerated Pavement Testing 600-18

603.03.03 Full-Scale Independent Accelerated Pavement Testing (FS/APT) 600-18

603.03.04 Large-Scale Laboratory Testing 600-19

603.03.05 Acceptance Criteria of Pavement Design 600-19

603.03.06 Independent Review and Validation 600-22

603.04 REFERENCES 600-23

SECTION 700 - DRAINAGE DESCRIPTION PAGE NO.

701 GENERAL 700-1

SECTION 800 - UTILITIES DESCRIPTION PAGE NO.

801 GENERAL 800-1

802 UTILITY PLANNING 800-2

803 SERVICE RESERVATIONS 800-3

804 UTILITY DESIGN 800-4

804.01 GENERAL 800-4

804.02 UTILITY PROTECTION 800-5

804.03 UTILITY RELOCATION 800-5



Page 11 of 18

804.04 CONTINGENCY DUCTS 800-6

804.05 UTILITY LOCATIONS 800-6

804.06 NON-DISRUPTIVE ROAD CROSSINGS 800-6

SECTION 900 - TRAFFIC ENGINEERING DESCRIPTION PAGE NO.

901 GENERAL 900-1

SECTION 1000 - LIGHTING DESCRIPTION PAGE NO.

1001 ROADWAY LIGHTING 1000-1

1001.01 GENERAL 1000-1

1001.02 LIGHTING DESIGN CONSIDERATIONS 1000-2

1001.03 ILLUMINATION REQUIREMENTS 1000-4

1002 PARKING AREA LIGHTING 1000-5

1002.01 GENERAL 1000-5


1002.03 LANTERN MOUNTING HEIGHT 1000-5

1002.04 LANTERN SELECTION 1000-6

1003 SIDEWALK LIGHTING 1000-6

1003.01 GENERAL 1000-6


1003.03 LANTERN MOUNTING HEIGHT 1000-6

1003.04 LANTERN SELECTION 1000-6

1004 LIGHTING CONTROLS 1000-6

1004.01 GENERAL 1000-6

1004.02 LIGHTING CONTROLLER REQUIREMENTS 1000-6

1004.03 DESIGN STANDARDS AND PROCEDURES 1000-7

1005 POWER DISTRIBUTION 1000-7

1006 DESIGN AND SUPERVISION RESPONSIBILITIES 1000-8

1007 DESIGN REQUIREMENTS 1000-8

1007.01 CONCEPT DESIGN 1000-8

1007.02 PRELIMINARY DESIGN 1000-9

1007.03 DETAILED DESIGN 1000-9



Page 12 of 18

SECTION 1100 - ROADSIDE DEVELOPMENT DESCRIPTION PAGE NO.

1101 LANDSCAPING 1100-1

1102 IRRIGATION 1100-1

1102.01 IRRIGATION DUCTS 1100-1

1103 FENCING 1100-2

1104 SLOPE PAVING 1100-2

1105 SWEET SAND COVERING 1100-2

1106 STREET FURNITURE 1100-2

1106.01 GENERAL 1100-2

1106.02 BENCHES 1100-3

1106.03 BUS SHELTERS 1100-3

1107 NOISE ABATEMENT 1100-3



Page 13 of 18

TABLE OF CONTENTS

PART 3 STRUCTURE DESIGN

SECTION 100 - DESIGN CRITERIA DESCRIPTION PAGE NO. 101 INTRODUCTION 100-1

101.01 PURPOSE 100-1

101.02 DEFINITIONS 100-2

101.03 BRIDGE TYPES 100-3

101.04 QUALITY ASSURANCE 100-3

101.05 VALUE ENGINEERING AND SUSTAINABILITY 100-6

101.06 GENERAL PROVISIONS 100-7

102 DESIGN FEATURES 100-8

102.01 GENERAL 100-8

102.02 ROADWAY DETAILS 100-8

102.03 CLEARANCE AT STRUCTURES 100-8

102.04 WIDTH AND SPAN 100-8

102.05 TRAFFIC BARRIERS, PARAPETS AND RAILINGS 100-9

102.06 CONCRETE BARRIER TRANSITIONS 100-9

102.07 APPROACH SLABS 100-9

102.08 ANCHOR SLABS 100-10

102.09 DECK DRAINAGE 100-10

102.10 WING WALLS 100-10

102.11 LIGHTING 100-10

102.12 BRIDGE DECK ELEVATIONS 100-11

102.13 CONCRETE CRACK CONTROL 100-11

102.14 EARLY THERMAL CRACKING 100-11

102.15 CORROSION PROTECTION 100-12

102.16 SPECIAL PROTECTIVE COATING 100-12

103 ARCHITECTURAL CONSIDERATIONS 100-12

104 SERVICE LIFE 100-12

105 DEFORMATION 100-12



Page 14 of 18

SECTION 200 - DESIGN LOADS DESCRIPTION PAGE NO. 201 LOAD TYPES 200-1

201.01 GENERAL 200-1

201.02 DEAD LOADS 200-1

201.03 WEARING SURFACE 200-1

201.04 VEHICULAR LIVE LOADS 200-2

201.05 FOOTWAY OR PEDESTRIAN LIVE LOAD 200-3

201.06 WIND LOAD 200-3

201.07 FRICTION FORCES 200-4

201.08 THERMAL FORCES 200-4

201.09 STREAM FORCES 200-4

201.10 LATERAL EARTH PRESSURE 200-4

201.11 DIFFERENTIAL SETTLEMENT 200-5

201.12 EARTHQUAKES 200-5

201.13 BUOYANCY AND HYDROSTATIC PRESSURE 200-5

201.14 OTHER LOADS 200-5

SECTION 300 - REINFORCED CONCRETE DESCRIPTION PAGE NO. 301 GENERAL 300-1

301.01 CONCRETE 300-1

301.02 MINIMUM CONCRETE COVERS 300-2

301.03 DESIGN METHODS 300-3

301.04 REINFORCEMENT 300-3

302 SLAB DESIGN 300-3

303 WATERPROOFING 300-4

304 SURFACE FINISH 300-4

SECTION 400 - PRE-STRESSED AND POST-TENSIONED CONCRETE

DESCRIPTION PAGE NO.

401 DESIGN CRITERIA 400-1

401.01 GENERAL 400-1

401.02 ALLOWABLE STRESSES IN PRE-STRESSED CONCRETE MEMBERS 400-1

402 PRECAST PRE-STRESSED CONCRETE 400-2



Page 15 of 18

402.01 DEFLECTIONS 400-2

402.02 ALLOWABLE STRESSES PRE-STRESSING STEEL 400-2

402.03 ALLOWABLE STRESSES - CONCRETE 400-2

402.04 LOSS OF PRE-STRESS 400-3

403 PRE-STRESSED I GIRDERS, VOIDED SLABS AND BOX BEAMS 400-3

403.01 GENERAL 400-3

403.02 I GIRDER BRIDGES 400-3

403.03 END BLOCKS 400-3

403.04 INTERMEDIATE DIAPHRAGMS 400-3

403.05 LATERAL TIES 400-4

403.06 SHEAR KEYS 400-4

403.07 BARRIERS 400-4

404 POST-TENSIONED BOX GIRDER BRIDGES 400-4

404.01 GENERAL 400-4

404.02 GROUT 400-4

404.03 DUCTS 400-5

404.04 CREEP AND SHRINKAGE 400-5

404.05 FLANGE AND WEB THICKNESS BOX GIRDERS 400-5

404.06 DIAPHRAGMS 400-5

404.07 DEFLECTIONS 400-5

404.08 ALLOWABLE STRESSES PRE-STRESSING STEEL 400-5

404.09 ALLOWABLE STRESSES CONCRETE 400-6

404.10 LOSS OF PRE-STRESS 400-6

404.11 FLEXURAL STRENGTH 400-6

404.12 FLANGE REINFORCEMENT 400-6

SECTION 500 - STRUCTURAL STEEL DESCRIPTION PAGE NO. 501 DESIGN CRITERIA 500-1

501.01 GENERAL 500-1

501.02 DESIGN METHODS 500-1

501.03 MATERIALS 500-1

501.06 CHARPY V-NOTCH IMPACT REQUIREMENTS 500-1



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SECTION 600 - EXPANSION AND CONTRACTION DESCRIPTION PAGE NO.

601 MOVEMENT CRITERIA 600-1

601.01 MOVEMENT RATING 600-1

602 DECK JOINTS 600-1

602.01 GENERAL 600-1

602.02 STRIP SEALS 600-3

602.03 ELASTOMERIC EXPANSION JOINTS 600-3

602.04 MODULAR JOINTS 600-3

602.05 OTHER JOINTS 600-3

603 BEARINGS 600-3

603.01 GENERAL 600-3

603.02 NEOPRENE STRIPS 600-4

603.03 ELASTOMERIC BEARING PADS 600-4

603.04 STEEL BEARINGS 600-5

603.05 SLIDING ELASTOMERIC BEARINGS 600-5

603.06 HIGH-LOAD MULTI-ROTATIONAL BEARINGS 600-6

603.06.01 Description 600-6

603.06.02 Rotational Requirements 600-6

603.06.03 Use 600-7

603.06.04 Design Criteria 600-7

603.07 BEARING SCHEDULE 600-9

604 RESTRAINING DEVICES 600-9

604.01 GENERAL 600-9

604.02 VERTICAL FIXED RESTRAINERS 600-10

604.03 VERTICAL EXPANSION RESTRAINERS 600-10

604.04 EXTERNAL SHEAR KEYS 600-10

604.05 INTERNAL SHEAR KEYS 600-10

604.06 KEYED HINGES 600-10

SECTION 700 - GEOTECHNICAL DESCRIPTION PAGE NO.

701 GROUND INVESTIGATION FOR GEOTECHNICAL WORKS 700-1

701.01 GENERAL 700-1

701.02 GEOTECHNICAL REPORTING 700-1

702 GEOTECHNICAL DESIGN 700-3



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702.01 FOUNDATIONS 700-3

702.01.01 General 700-3

702.01.02 Design of Foundations 700-4

702.01.03 Spread (Strip) Footings 700-4

701.01.04 Pile Foundations 700-5

701.01.05 Driven Piles 700-6

701.01.06 Bored Piles 700-6

701.01.07 Micropiles 700-7

SECTION 800 - RETAINING WALLS DESCRIPTION PAGE NO. 801 DESIGN CRITERIA 800-1

801.01 GENERAL 800-1

801.02 TYPE OF STRUCTURE 800-2

801.03 RESPONSIBILITIES 800-2

801.03.01 Roadway Design Team 800-2

801.03.02 Geotechnical Team 800-3

801.03.03 Bridge Design Team 800-3

801.04 PROPRIETARY RETAINING WALLS 800-3

SECTION 900 PEDESTRIAN BRIDGES DESCRIPTION PAGE NO. 901 DESIGN CRITERIA 900-1

902 LOAD TYPES 900-1

902.01 GENERAL 900-1

902.02 PEDESTRIAN LIVE LOAD 900-1

902.03 WIND LOAD 900-1

902.04 OTHER LOADS 900-1

903 DESIGN CRITERIA 900-2

903.01 TYPE OF STRUCTURE 900-2

903.02 METHOD OF CONSTRUCTION 900-2

903.03 DESIGN LIFE 900-2

903.04 WIDTH 900-2

903.05 VERTICAL CLEARANCE 900-3

903.06 DEFLECTION 900-3

903.07 TRAFFIC BARRIERS AND RAILINGS 900-3



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903.08 LIGHTING 900-3

903.09 DRAINAGE 900-3

903.10 LIFTS AND STAIRS 900-3

903.11 PROTECTIVE COATING 900-3

903.12 INSPECTION AND MAINTENANCE 900-4

SECTION 1000 - MISCELLANEOUS DESCRIPTION PAGE NO.

1001 TRAFFIC SIGN STRUCTURAL SUPPORTS 1000-1

1002 UTILITIES IN STRUCTURES 1000-1

1002.01 GENERAL 1000-1

1002.02 GENERAL POLICY 1000-1

1002.03 BRIDGE DESIGN TEAM RESPONSIBILITIES 1000-2

1003 FALSEWORK POLICY FOR BRIDGE CONSTRUCTION 1000-2

1003.01 FALSEWORK REQUIREMENTS 1000-2

1003.02 FALSEWORK USE 1000-3

1003.03 FALSEWORK CLEARANCES 1000-3

1004 CONSTRUCTION JOINT GUIDELINES FOR BRIDGE CONSTRUCTION 1000-4

1004.01 GENERAL 1000-4

1004.02 LONGITUDINAL CONSTRUCTION JOINTS 1000-5

1004.03 PRECAST CONCRETE GIRDER BRIDGES 1000-5

1004.04 STEEL GIRDER BRIDGES 1000-6

1004.05 CAST-IN-PLACE BOX GIRDER BRIDGES 1000-6

1005 RESPONSIBILITIES 1000-6

1005.01 CONSULTANT 1000-6

1005.02 CONTRACTOR 1000-7

SECTION 1100 - REFERENCES DESCRIPTION PAGE NO.

1100 REFERENCES 1100-1

1101 REFERENCES FOR PART 3 STRUCTURE DESIGN 1100-1


Version 2.0 Part 0 Divider November 2014

PART 1 ROADWAY DEVELOPMENT



SECTION 100 : GENERAL INFORMATION


Version 2.0 Part 1 Section 100 November 2014

Page 1 of 10

PART 1 - ROADWAY DEVELOPMENT

SECTION 100 - GENERAL INFORMATION

101 PURPOSE

101.01 INTRODUCTION

This Manual is intended to serve as a guide for the design of urban streets that fall under the

jurisdiction of Abu Dhabi City Municipality (also referred to throughout this document as ADM).

The Manual provides design guidance that will assist Consultants conform to the expectations of

the Internal Roads and Infrastructure Directorate (IRID) of ADM, and also refers to other

stakeholder requirements that need to be taken into consideration during project development. It is

assumed that the user has the educational and engineering experience necessary to properly

implement its procedures, guidelines and criteria.

It is expected that this manual will promote the following:

All designs will be based on identical criteria.

Plans will have a consistent, well-organized format, which will not vary greatly from project

to project.

The technical review process will be expedited for both ADM and the Consultant.

Cost efficiencies will be realized during design by an early understanding of procedures

and criteria to be employed.

This manual utilizes established analysis techniques and design standards from recognized

technical associations that are listed as references in the relevant sections.

When the Roadway Design Manual is combined with the four companion documents listed below,

the standardization of the planning, design and construction of roadway projects will be complete.

The companion documents to this manual are:

Consultant Procedure Manual (2014)

Standard Drawings (2014)

Traffic Control Devices Manual (2014)

Standard Specifications (2014)

This Manual supersedes the previous version of the ADM Roadway Design Manual Roads and

Bridges issued in 1998.

Reference manuals issued by other stakeholders will also need to be taken into consideration

during the design process.



Page 2 of 10

Examples of these documents are listed below:

Department of Municipal Affairs (DMA) Roadway & Public Realm Lighting Specification

and Roadway Project Compliance Checklist Tables (2011)

DMA Urban Work Zone Traffic Management Manual

ADM Materials Selection Strategy

ADM Sustainability Guideline for ADM, IRI Employees and Consultants

ADM Drainage Design Consultant to liaise with IRID Design Section

ADM Design Standards for Irrigation - Consultant to liaise with the Parks & Recreation

Facilities Division (PRFD)

ADM Emirate of Abu Dhabi Road Safety Audit Manual

Urban Planning Council (UPC) Urban Street Design Manual (USDM)

UPC Public Realm Design Manual (PRDM)

UPC Abu Dhabi Safety and Security Planning Manual (SSPM)

UPC Abu Dhabi Utility Corridors Design Manual (UCDM)

Abu Dhabi Department of Transport (DoT) Abu Dhabi Walking and Cycling Master Plan

(WCMP)

DoT Trip Generation and Parking Rates Manual for the Emirate of Abu Dhabi

DoT Public Transit Strategy/Metro, LRT and Bus Master Plans

DoT Abu Dhabi Manual of Uniform Traffic Control Devices

DoT Route Numbering System Policy and Procedures

DoT Technical Circulars

The above list is not considered to be exhaustive and the design consultant should ensure that the

latest version of all relevant design documentation is used.

Note that where the Consultant's scope of work and this manual conflict, the scope of work shall

govern.

Revisions and additions to this manual will be issued from time to time as required. Section 103

contains information regarding Interim Advice Notes and Technical Circulars, which will be used to

advise of future revisions and additions.

Further contained in this section is an overview of the layout of the manual content, roadway

classifications and route designations.



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102 CONTENTS AND ORGANIZATION

The scope of the Roadway Design Manual is comprehensive and is divided into three parts. The

three parts are further divided into sections, each with appropriate sub-sections.

The three parts are as follows:

Part 1 : Roadway Development

Part 2 : Roadway Design

Part 3 : Structure Design

102.01 PART 1 : ROADWAY DEVELOPMENT

The purpose of the Roadway Development part is to outline the information and data which must

be analyzed to determine a projects scope. The information and analyses are assembled into a

Design Concept Report, which becomes the basis for the project design.

The Roadway Development part is divided into three sections. The first section explains the formal

organization of this manual and the other two sections, the Design Concept Development and the

Design Concept Report, define the conceptual design of the project.

The Design Concept section includes subsections in Transportation Planning, Environmental

Factors Influencing Design and Technical Investigations. Conceptual Design must be based upon

site specific community considerations that reflect military, utility, environmental features, physical

properties of the site and circulation that define the project design. To support the lands intended

use, procurement of information from both ADM and external parties is required.

All the collected project-specific data forms the basis for the Design Concept Report, a summary of

the technical analyses and schematic designs that are to be used for plan preparation and

construction.

102.02 PART 2 : ROADWAY DESIGN

The purpose of the Roadway Design part is to identify the design standards that all roadway

projects are required to satisfy. The project design is based on these standards. When used in

conjunction with the ADM Standard Specifications and ADM Standard Drawings, the resulting

project plans and specifications for all projects are completed to the same requirements and

format.

Specifically, the Roadway Design part provides details in geometric design standards for each

component of the roadway project. The information is divided into eleven sections that include

General Design Criteria, Geometric Design Standards, Geometric Cross Sections, At Grade

Intersections (Junctions), Grade Separated Interchanges, Structural Pavement Design, Drainage,

Utilities, Traffic Engineering, Lighting and Roadside Development.



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102.03 PART 3 : STRUCTURE DESIGN

The purpose of the Structure Design part is to identify the design details with which all structures

are required to comply. As with the Roadway Design part, this document is intended to be used in

conjunction with the ADM Standard Specifications and the ADM Standard Drawings for the

standardization of details for structures and bridges.

Uniform design and construction of structures and bridges promotes efficiency of design,

construction and maintenance. This part focuses on features incorporating sound design and cost-

effective design practices to meet this goal.

This part consists of eleven sections that cover the general aspects of structures and bridge

design. Sections include Design Criteria, Design Loads, Reinforced Concrete, Pre-Stressed and

Post-Tensioned Concrete, Structural Steel, Expansion and Contraction, Geotechnical, Retaining

Walls and Pedestrian Bridges.

The tenth section addresses miscellaneous items such as traffic sign structural supports, utilities in

structures, falsework policy for bridge construction, construction joint guidelines and

responsibilities.

The last section provides a list of reference documents applicable to Part 3.

103 INTERIM ADVICE NOTES AND TECHNICAL CIRCULARS

103.01 GENERAL

This manual may be supplemented from time to time with Interim Advice Notes and Technical

Circulars addressed to Consultants for the purpose of transmitting and formalizing appropriate

revisions or additions to the manual. This manual can only be revised by the issuance of an Interim

Advice Note or Technical Circular authorized and signed by the Director of IRID, ADM or his

designated representative. Interim Advice Notes and Technical Circulars will be developed and

issued as two distinct types, general and specific, and are further defined below.

103.02 INTERIM ADVICE NOTES AND TECHNICAL CIRCULARS GENERAL

Interim Advice Notes and Technical Circulars - General, deal with issues or information that must

be distributed on a system-wide basis to all consultants. They are also used to provide advance

directives with respect to imminent revision or additions to the Roadway Design Manual. Examples

are revisions or refinements to policies, guidelines or criteria.

103.03 INTERIM ADVICE NOTES AND TECHNICAL CIRCULARS SPECIFIC

Interim Advice Notes and Technical Circulars - Specific, deal with issues or information that is of

specific interest to a particular section (design contract), and as such have no influence or effect on

other design sections.



Page 5 of 10

Examples of such Interim Advice Notes and Technical Circulars are:

1. Deviations from the Roadway Design Manual on a project specific basis.

2. Lighting Design Guidelines.

3. Report Transmittals, etc.

104 ROADWAY CLASSIFICATIONS

104.01 ROADWAY SYSTEM

Roadways within the jurisdiction of ADM fall into two categories - rural or urban. Table 100.01

below differentiates between the urban and rural roadway types by their first tier classifications:

Table 100.01

ROADWAY TYPES BY FUNCTIONAL CLASSIFICATION

First Tier Classification

Roadway Type for Design

Urban Rural

Primary Boulevard

Avenue

Freeway

Expressway

Secondary Street Collector

Local Access Lane Access Road

It should be noted that there is often some overlap between the classes and categories. For

example freeways, and expressways in particular, may penetrate into urban areas.

104.01.01 Rural Roadways

Rural roadway classification characteristics are as follows:

Freeway



Page 6 of 10

A freeway is a roadway with both a very high capacity and speed, with dual 3-lane (or

more) carriageways. All intersections and crossings are grade separated. Access to

pedestrians and non-motorized vehicles is forbidden. Posted speeds of 120 kph typically

apply.

Expressway

An expressway is generally built to similar standards as a freeway, but normally operates

at lower speeds, may permit increased levels of access and have dual 2-lane

carriageways. Posted speeds of 100 kph typically apply, although 120 kph can also be

used.

Freeways are typically downgraded to expressway standards on approaching urban

areas. In such cases, posted speeds of 80 kph to 100 kph are typical.

Collector

A collector is a low to medium capacity road that serves to move traffic from local streets to

primary roads. These may be single or dual carriageway roads.

Access Road

An access road is a low volume capacity single carriageway street, with typically very low

traffic volumes and speeds.

104.01.02 Urban Roadways

Urban roadways are required to accommodate high degrees of both vehicular movements and

accessibility, and to provide the level of functionality needed to satisfy the current and future

demands in Abu Dhabi.

Urban roadway classification characteristics are as follows, consistent with the street family

classifications provided by the USDM:

Boulevard

A boulevard is a high vehicle capacity dual 3-lane street, which may have frontage lanes

(service roads).

Avenue

An avenue is a medium vehicle capacity dual 2-lane street, which may have frontage lanes

(service roads).

Street

A street is a low vehicle capacity single carriageway street, with typically low traffic

volumes and speeds.

Access Lane

An access lane is a very low volume capacity single carriageway street, with typically very

low traffic volumes and speeds.

Table 100.02 below indicates the relationship between the street family name defined by the



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USDM and the functional classification system adopted by the American Association of State

Highway and Transportation Officials (AASHTO):

Table 100.02

RELATIONSHIP BETWEEN USDM STREET FAMILY AND FUNCTIONAL CLASSIFICATION

USDM Street Family

Functional Classification (AASHTO)

Principal Arterial Minor Arterial Collector Local

Boulevard

Avenue

Major Collectors

Street

Minor Collectors

Access Lane

Table 100.03 summarizes the major characteristics of the first tier classifications, i.e. primary,

secondary and local roads:

Table 100.03

SUMMARY OF FUNCTIONAL CHARACTERISTICS FOR ROADWAY CLASSIFICATIONS *

Characteristic Primary Roads Secondary Roads Local Roads

Function Regional Transportation Regional transportation and/or service to major land developments

Local circulation

Service Points

Connects multiple regions. Serves international connections and major military installations

Connects two regions. Serves international connections, military installations and seaports not served by Primary Roads. May connect two Primary Roads

Residential, industrial and recreational areas not served by a higher class.

Access Access is controlled May be controlled Minimal control.

Minimum Level of Service

D D D

Design Speed

60 - 80 kph (urban)

120 - 140 kph (rural)

40 kph (urban)

60 - 100 kph (rural)

30 kph (urban)

60 - 80 kph (rural)

Weather related road closures - Allowable frequency

Once per 100 years Once per 50 years Once per 25 years

* See Part 2 Roadway Design for further details.



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104.02 DESIGN

Roadway design standards are dependent upon the classification of the roadway (primary,

secondary and local). ADM will determine the appropriate classification, which will also take UPC

guidelines into consideration. Refer to Table 100.03 for a summary of functional characteristics and

Part 2 Roadway Design for more details. The Design Concept Report summarizes the design

criteria to be utilized in the design.

The roadway classification system is based on a hierarchy of roads. Local Roads provide access

to adjacent land. Secondary Roads provide a combination of land access and movement of

through traffic. Primary Roads provide for movement of through traffic and have at-grade or grade-

separated intersections.

104.03 CRITERIA FOR DESIGN CLASS DESIGNATION

Table 100.04 defines the characteristics of the urban/rural design classes as they relate to design

requirements:



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Table 100.04

CHARACTERISTICS OF URBAN/RURAL DESIGN CLASSES

Type Primary Roads Secondary Roads Local Roads

Traffic Service:

Urban and Rural Traffic movement primary consideration

Traffic movement and access of equal importance

Traffic movement secondary consideration

Plot Service:

Urban and Rural Plot access secondary in consideration

Traffic movement and plot access of equal importance

Plot access primary consideration

Traffic Flow Characteristics:

Urban Uninterrupted flow except at intersections

Interrupted flow Interrupted flow

Rural Uninterrupted flow Interrupted flow Interrupted flow

Private and Commercial Access:

Urban and Rural None or limited Permitted Permitted

Connection Type for Public Roads:

Urban At-grade intersections At-grade intersections At-grade intersections

Rural Grade separated interchanges, or slip ramps

At-grade intersections At-grade intersections

Connects to:

Urban

Boulevards

Avenues

Streets

Boulevards

Avenues

Streets

Access Lanes

Streets

Access Lanes

Rural

Freeways

Expressways

Collectors

Freeways

Expressways

Collectors

Access Roads

Collectors

Access Roads

Average Running Speed for Off-Peak Conditions:

Urban 40 - 60 kph 30 kph 20 kph

Rural 60 - 110 kph 50 - 90 kph 45 - 80 kph



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105 ROUTE DESIGNATIONS

The purpose of route designations is to provide the roadway user with a consistent expectation of:

relative direction (north, south, east, west).

design standards (design speeds, shoulders, etc., resulting from the roadway

classification).

origin/destination of the road.

Route designation and numbering facilitate rapid and accurate identification of specific locations in

the event of emergencies, accident reporting and analysis and in the inventory of roadway

appurtenances, i.e. signs, drainage structures, guardrails, etc. Route assignments are made by the

ADM and DoT, dependent upon road maintenance liability and based on the functional

classification of each roadway with urban or rural factor jurisdictions.

Refer to the DoT Route Numbering System - Policy and Procedures manual for details.



SECTION 200 : DESIGN CONCEPT DEVELOPMENT



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SECTION 200 - DESIGN CONCEPT DEVELOPMENT

201 TRANSPORTATION PLANNING

201.01 INTRODUCTION

The pre-design process involves the collection of existing data from ADM, other government

departments, utility agencies/authorities, landowners, and field surveys. This data becomes the

foundation for project road and bridge design. The Consultant is responsible for all data collection.

201.02 INTERNAL ROADS AND INFRASTRUCTURE DIRECTORATE (IRID)

IRID is the lead department from which all road and bridge projects are initiated and approved.

The Consultant will work with assigned staff to develop the project scope as per the Consultant

Procedure Manual and identify applicable design criteria from the Roadway Design Manual. The

Consultant is expected to develop the project by proper application of ADM policies, procedures

and standards.

201.03 TOWN PLANNING SECTOR

The Town Planning Sector (TPS) is divided into the following:

1) Urban Planning Division (UPD).

2) Spatial Data Division (SDD).

3) Construction Permits Division (CPD).

The UPD (Planning Section) is responsible for the development and maintenance of the Master

Plan and planning layouts. The Master Plan is the base document from which the projects

roadway classifications are assigned. Roadway design standards are identified for each roadway

classification (see Tables 100.01, 100.02, 100.03 and 100.04, in Part 1 - Section 100, General

Information).

The planning layouts are used to identify the existing and proposed land use and development

intensity.

The UPD (Utilities Section) is responsible for the development and approval of all service

reservations.

201.04 MAPPING

For standards, specifications and procedures, refer to the latest TPS (SDD) requirements.



Page 2 of 25

201.04.01 General

Current, accurate base mapping is an essential tool in transportation planning and design. The

specific mapping requirements depend on the length and complexity of the project and its location,

either urban or rural. Aerial mapping is normally the most useful and cost-effective medium for

larger projects. Ground topographical surveys are used for smaller projects, especially in urban

areas and to supplement aerial mapping at specific locations where more detail and accuracy is

needed.

Three types of aerial maps are used in the planning and design phases of roadway and bridge

projects:

Uncontrolled Aerial Photography These maps are produced directly from the aerial

photographs that normally cover large areas at a reduced scale. The maps are generally used in

route location studies to define transportation corridors and alternative alignments. The contact

prints from the aerial photography are assembled to form a photo mosaic of the area under study

to reduce distortion.

Controlled Aerial Photography - Prior to the flight, horizontal and vertical ground control points

are set and marked in the field. These points are used to control photo mosaic products that are

significantly more accurate and can be prepared at a specific scale. These maps can be used at

larger scales for preliminary engineering activities including Design Concept Reports.

Topographic (Aerial or Mobile) Mapping - These consist of topographic maps compiled from

airborne LiDAR data to capture large amounts of data over large areas and ground based LiDAR

(fitted to a vehicle) to provide a greater amount of detail in specific areas. Data from LiDAR can be

imported into CAD packages, combined with visual imagery or viewed directly in software

packages like RiSCAN. This mapping can be used for both design concept development and final

design and should be limited to the broad roadway corridor.

The Consultant is responsible for providing base mapping for design concept development.

Specific requirements will be identified in the Consultants scope of work. Existing aerial and

topographic maps may be available and suitable for use in consultation with ADM. ADM and TPS

maintain a limited library of existing mapping which the Consultant may review for background

information.

Mapping scales and contour intervals generally suitable for the intended purpose are shown in

Table 200.01.

201.04.02 Topographic Mapping

Topographic maps for a specific project shall be prepared in accordance with the following:

Survey Control / Field Surveys - The requirements for surveys are included in Section 203.04,

Survey Control/Field Survey.



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Drafting Standards - Mapping features and symbology will be prepared in accordance with the

latest CAD Standards, supplemented by the standard symbols shown in Figures 200.01, 200.02

and 200.03.

Primary Control Points - All primary control points for mapping which were established during

the initial field survey will be shown on the maps in their proper locations and with the appropriate

symbol, identification number and elevation. A tabulation of the primary control points shall also be

shown in the original survey notebook. The tabulation will show the identification number,

coordinates and elevation of the point.

Supplemental Control Points - All supplemental control points established for controlling aerial

photography will be shown on the maps. These include wing points, analytically bridged points,

and aerial photo centres. See Figure 200.01.

Planimetric Features - Natural and manmade features, spot elevations, topographic features and

relevant political subdivision lines shall be plotted on the maps as shown in Figures 200.02 and

200.03.

Coordinate Grid - Coordinate grid ticks shall be shown on the maps at intervals to suit the

drawing.

North Point - A north point shall be placed on each map sheet. The north point shall be oriented

so that north points to the top or to the right of the map sheet. Cut lines shall also be labelled so

that each sheet may be joined accurately to adjacent sheets.

Map Index - A sheet index diagram shall be prepared for each mapping project. This diagram

shall show the position and relationship of each sheet to adjacent sheets. A title block is also

required and shall be placed on each sheet.

Table 200.01

MAP SCALES AND CONTOUR INTERVALS FOR HIGHWAY

DEVELOPMENT

Purpose Scales Interval (m)

Route Location Studies:

Mountainous

Rolling to Flat

1 : 5,000 (max)

1 : 5,000

5

2

Preliminary Design (DCR):

Rural

Urban

1 : 1,250

1 : 1,250

2

2

Rural Design 1 : 1,250 0.5

Urban Design 1 : 500 0.5

Detailed Site Design 1 : 100

1 : 250

0.5

0.5



Page 4 of 25

201.05 PROJECT LIMITS

ADM will determine the limits of the project. Typically, the limits include the roadway/bridge,

medians, sidewalks, parkways, and roadside improvements that enhance the appearance,

maintainability and safety characteristics of the project. The project limits may also be determined

by phased implementation considerations.



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Figure 200.01

Standard Mapping Symbols - Boundaries and Monuments



Page 6 of 25

Figure 200.02

Standard Mapping Symbols - Natural Planimetric Features



Page 7 of 25

Figure 200.03

Standard Mapping Symbols - Manmade Planimetric Symbols



Page 8 of 25

201.06 PROJECT IDENTIFICATION AND NUMBERING

ADM will assign the Title and Number for each individual roadway and bridge project. The

Consultant will include this information on all drawings, reports, correspondence, calculations and

other design documentation associated with the subject project.

201.07 INTER-DEPARTMENTAL COORDINATION

Throughout the development of the project, coordination with ADM as well as other government

departments is essential. The Consultant is expected to identify the requirements of the involved

government departments, and insure that the project design addresses these requirements. Table

200.02 below lists the agency or authority responsible for transportation related functions.

Table 200.02

MUNICIPAL AGENCIES

Function Agency/Authority

Road/Bridge Construction ADM Internal Roads and Infrastructure Directorate (IRID)

Planning

Urban Planning Council (UPC)

ADM - Town Planning Sector (TPS)

Department of Transport (DoT)

Utilities ADM - Town Planning Sector (TPS)

Urban Planning Council (UPC)

Parking ADM (IRID)

Department of Transport (DoT)

Right-of-Way ADM - Town Planning Sector (TPS)

Landscape and Public Realm ADM Parks & Recreation Facilities Division (PRFD)

Public Transportation Department of Transport (DoT)

202 ENVIRONMENTAL FACTORS INFLUENCING DESIGN

202.01 INTRODUCTION

There are a number of important environmental factors that influence the design of all roadway

and bridge projects. These factors are both natural and man-made and have been divided into two

major categories; Socio Economic/Community Resource Data (Section 202.02) and Natural/

Environmental Resource Data (Section 202.03). The identification of these resources enables the

project to be developed to avoid and/or minimize impact on these resources to the greatest extent

practicable.

This will contribute significantly to public acceptance and the ultimate success of a project. The

following sections describe the various environmental factors that comprise each of the two

categories. It is the Consultants responsibility to assess each factor and develop a functional and



Page 9 of 25

compatible design.

The Consultant is responsible for ensuring that an accredited Environmental Consultant is used to

study the environmental aspects of the project, facilitating the issuance of the environmental

permit.

202.02 SOCIO ECONOMIC / COMMUNITY RESOURCE DATA

The Consultant shall consider each of the following factors as part of the development of project

design. The goal is to develop a functional design that accommodates, maintains or enhances the

integrity of each socio economic and community resource with minimal disruption. To assist with

the planning involved with the development of the design, the Consultant should map all

resources that are capable of being placed onto a map.

Consultants are to ensure that the pedestrian environment is accessible to all, not only critical to meeting the access needs of individual disabled people, but contributing towards social inclusion and quality of life to a much wider section of the population. In this context accessible to all means continuous and level sidewalks and paths, disabled parking/access, ramps to sidewalks and buildings, all of which must be clear of unnecessary obstructions. The following factors must also ensure that the needs of pedestrians, cyclists, children and disabled people are carefully considered.

202.02.01 Land Use

The project plans must accommodate existing and future land use to the full extent possible. The

Consultant is required to provide adequate parking and access to adjacent land uses,

commensurate with the type of land use and the roadway classification (see Part 1 Section 100,

General Information, Tables 100.02, 100.03 and 100.04). The roadway volumes used to

determine the level of service (existing and 20-year projection) must include the trip generation

associated with the adjacent land uses.

In urban areas, Plan Abu Dhabi 2030 (Urban Structure Framework Plan), published by the Urban

Planning Council (UPC) is the primary document used to identify the types and locations of

designated land uses. In rural areas, where the land usage is less defined, the Consultant must

conduct a field survey of the existing land uses adjacent to the project. The aforementioned

information, combined with the field survey data, will then be used to identify potential

improvements to be designed as part of the roadway project.

In rural areas, formal information regarding land use may not be available. In these cases, the

current land use is typically agricultural and will remain as agricultural unless there is information

stating otherwise.



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202.02.02 Growth Projections

The Consultant is to liaise with all concerned authorities to establish growth projections applicable

to the area of the project. This will not only include UPC and TPS master planning projections, but

will also take into consideration information obtained from developers working in the vicinity of the

proposed scheme.

202.02.03 Public Services

The development of all road and bridge projects typically affects many public services. This can

result from encroachment of the improvement project beyond the existing roadway, sidewalk, and

bridge. As such, pre-design coordination with public services is required to incorporate design

approaches and construction phasing that minimizes the project impact.

The Consultant is responsible for identifying all public services which may be affected by the

project. In addition, the Consultant is also responsible for compiling all relevant design

requirements from the affected public services and incorporating these parameters into the project

design. It is the Consultants responsibility to assure ADM that the design and construction

phasing meets the approval of the affected public services.

Table 200.03 identifies the various public services and the responsible agency/authority for each.



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Table 200.03

PUBLIC SERVICES

Service Agency/Authority

Road/Bridge Construction ADM IRID

DoT

Landscape and Public Realm ADM - PRFD

Police General Headquarters of Abu Dhabi Police

Directorate of Traffic and Patrols

Fire Abu Dhabi Civil Defence

Security Abu Dhabi Civil Defence

Abu Dhabi Police

Schools

ADM TPS

Ministry of Education

Abu Dhabi Education Council (ADEC)

Sanitation Health Authority of Abu Dhabi (HAAD)

Abu Dhabi Sewerage Services Company (ADSSC)

Waste Center of Waste Management

Parking ADM IRID

DoT

Recreational ADM TPS

ADM - PRFD

Navigable Waters Critical Infrastructure and Coastal Protection Authority

Mail Service Emirates Post Group

Public Transportation DoT

National Railway and Metro Rail System

Etihad Rail National Railway

DoT Abu Dhabi Metro Rail System

Mosques General Authority of Islamic Affairs and Endowments

Mosque Development Committee

Hospitals Health Authority of Abu Dhabi (HAAD)

Archaeology Abu Dhabi Authority for Culture & Heritage

202.02.04 Schools

Schools are an important national resource. The design shall accommodate and preserve

sufficient access to all facilities that are affected by project design. Therefore, the Consultant is

expected to adapt the projects design to accommodate each schools needs.

The Consultant should liaise with the ADM School Safety Zone Coordinator, ADM Traffic Services

Section and authorized staff and/or management of any affected schools to establish the

requirements.



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Initial concept designs should study options to achieve better circulation, accessibility and way-

finding. Operational requirements of the facility should be well analyzed and alternatives should

be produced accordingly, taking into consideration the integration of different modes of transport

and pedestrian safety (especially due to the higher risks associated with children) and as further

detailed below:

1. Operational characteristics of the school should be thoroughly discussed with the

concerned people, and observed at the site, including beginning and end of a

school day for different grades, drop-off/pick-up locations for parents, drop-off/pick-

up waiting time, staff parking requirements, parking and drop-off/pick up locations

for school buses, access routes to main roads, etc.

2. Cycle and pedestrian routes for non-motorized students/parents.

3. Safe pedestrian crossing locations.

Parking supply should be in accordance with the guidelines on this type of facility (see Section

202.02.13), but any anticipated deficiency should be highlighted at the early stages of the design

process.

For each school, there are a number of factors that must be considered in the project design.

These include:

school bus traffic

crosswalks

school yard fencing

parking

drop-off/pick-up waiting time

landscaping

noise attenuation (i.e., insulated windows, sound-proof walls)

other safety improvement relocation of affected structures, as necessary

affects on potential school expansion

In the case of new school site development, the UPC Master Plan and Abu Dhabi Education

Council shall be consulted to identify these sites within and/or adjacent to the project limits.

As with all other adjacent property improvements, the Consultant is required to provide plans

which can be used to construct the necessary improvements either in conjunction with the

roadway/bridge project or as a separate project. This is intended so that construction can be

undertaken on the school sites during scheduled school closures or outside of normal school

working hours.



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202.02.05 Mosques

Mosques are extremely important to the Islamic faith and cannot be relocated or impacted in any

way. The Consultant shall identify all existing and proposed Mosques within close proximity to a

proposed project. The project design shall avoid impact to Mosques and shall accommodate and

preserve sufficient access to these sites. Construction works cannot be undertaken during prayer

times under any circumstances.

202.02.06 Malls

Concept designs should be given careful consideration in terms of integration of different modes

of transport, circulation, accessibility, way-finding and pedestrian safety. The following factors

should be considered during the preparation of alternative designs:

1. Parking requirements.

2. Traffic circulation within the parking zones.

3. Accessibility and connectivity to main roads.

4. Public transportation and taxi stop locations.

5. Dedicated cycle storage areas.

6. Safe pedestrian crossing locations.

7. Taxi drop-off and pick-up locations.

Parking supply should be in accordance with the guidelines on this type of facility (see Section

202.02.13).

202.02.07 Hospitals

Due to the nature of these facilities, careful planning of access routes and parking facilities is vital

for the proper and effective functioning of hospitals. Access for emergency vehicles, which require

urgent and safe passage to the facility at any time and in unpredictable volume must be taken into

consideration when designing the external road layout.

The Consultant shall consult with the concerned authorities at the outset of the project to clearly

establish these requirements.

202.02.08 Utilities

Major road and bridge projects typically include improvements to all affected utility services. This

also includes preparing plans and specifications for these improvements. Pre-design activities

require coordination with many agencies/departments. Final design approval of the utility

improvements by the utility agencies is also required. The Utilities Section of the Town Planning

Sector is responsible for establishment and approval of all Service Reservations.

Table 200.04 lists the Responsible Agencies/Authorities for Utilities. A survey of existing utilities is



Page 14 of 25

required. The purpose of the utilities survey is to determine which utilities can:

remain in place based on field surveys, as-built plans and other available information;

need to be replaced/upgraded due to future development;

be protected and/or relocated; and,

affect the horizontal and vertical alignment of the roadway.

In the case of future or relocated utilities, it may be necessary to preserve adjacent land for utility

installation and relocation. The associated costs for utility work shall be identified as part of the

design reflected in the project cost estimate for the Design Concept Report. Refer to Part 1 -

Section 322, Cost Estimate.

Table 200.04

PUBLIC SERVICES

Service Agency/Authority

Water ADWEA/ADDC (Water)

Transco (Water)

Sewer ADSSC

Telephone Etisalat / Du

Electricity ADWEA/ADDC (Power)

Transco (Electricity)

Lighting ADWEA/ADDC (Street Lighting Section)

ADM (Street Lighting Section)

Irrigation ADM - PRFD

Drainage ADM IRID Design Section

Gas ADNOC

District Cooling Tabreed

ITS DoT Traffic Management Center

Falcon Eye & Security Cameras

National Emergency and Crisis Management Authority

Signal Corps

Abu Dhabi Traffic Police

Speed and Red Violation Cameras

Abu Dhabi Traffic Police

202.02.09 Security

Nearly every project is affected by some level of security issue. All embassies, government

installations, palaces, schools, banks and VIP homes are protected by guards with guardhouses,

and associated channeling devices. As a result, many of these facilities interfere with road and

bridge projects. The UPC Abu Dhabi Safety and Security Planning Manual is to be followed to

ensure adherence to safety and security planning and design principles.



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The Consultant is required to minimize the relocation of affected facilities as part of the road and

bridge project. As with all other adjacent property improvements, the Consultant is required to

provide plans which can be used to construct the necessary improvements either in conjunction

with the roadway/bridge project or as a separate project. This is intended so that construction can

be undertaken outside of the project right-of-way at the convenience of the affected property

owner. Since each case will vary, the limits of improvement, access, facility relocation, parking,

etc. requires review by the affected party and ADM. The Consultant is also responsible for

assuring ADM that the proposed improvements located outside of the project right-of-way are

agreeable to the affected property owner.

202.02.10 Commercial Activities

The effects of commercial activities on the road and bridge design shall be taken into account. For

example, existing access shall be maintained as well as accommodating special features of the

non-project site. As a result, coordination with the Town Planning Sector, adjacent landowners

and governmental departments is required to lessen the impact of the road/bridge improvement

project on commercial activities.

202.02.11 Economics

The Consultant shall assess the economic conditions that exist within the project study area,

including income and employment characteristics, tax base and property values. The Consultant

shall develop a design that seeks to minimize adverse impacts on these and other economic

indicators. This will be done through direct coordination with representatives of ADM.

202.02.12 Local Transportation/Circulation

In order to ensure that the project fully incorporates local transportation/circulation needs, the

Consultant shall address the following:

Need for Public Transit Corridors, Stops or Turnouts

Staging areas for Regional Transportation Hubs

Police Enforcement Pads

Pedestrian Walkways and Islands

Special Landscape Areas

The Consultant should liaise with all relevant parties for the above, including but not limited to, the

DoT, UPC, Traffic Police and ADM Traffic Services Section.

202.02.13 Parking Requirements

In cases where a parking study is required, this should be based on the parking demand

calculated based on applicable rates. Reference should be made to the Trip Generation and

Parking Rates Manual for the Emirate of Abu Dhabi, published by the DoT.



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If a suitable land use code is not specified by the DoT, rates from the Institution of Transportation

Engineers may be used, subject to approval of ADM.

Surveys of comparable local developments may also be used, subject to the approval of ADM.

The designer shall provide a table showing calculated parking demand and supply as well as a

diagram that clearly shows all parking spaces provided, including provision for disabled people.

The designer shall comply with the requirements of the appropriate agencies in the case of off-

street parking facilities and shall ensure that capacity analysis of vehicle access to such car parks,

based on the highest peak traffic inflow, is undertaken. Particular consideration needs to be given

to access control systems (gates, barriers, ticketing systems, etc.) and their capacity in relation to

the expected peak traffic inflow.

The basic dimensions for parking bays are:

Standard perpendicular and diagonal parking bays

Angles 30, 45, 60 and 90: 2.7m (min) x 5.5m.

Standard parking bay (parallel): 2.5m x 6.5m (but see note below).

Accessible (disabled) parking: 2.5m +1.5m x 5.5m.

Accessible van parking: 3.35m +1.5m x 5.5m.

Parking next to walls or physical obstructions: Standard width + 200mm.

Note: The bay length for a standard parallel parking bay may be reduced to 6.0m if the parking

provision is not adjacent to a main circulatory route.

Standard parking arrangements are also provided on the ADM Standard Drawings.

202.02.14 Recreation

A variety of recreation and leisure activities are available to the residents of Abu Dhabi. These can

include, but not limited to, playing fields, parks and streetscape, beach access, clubs, hotels, golf

courses, movie theatres and entertainment complexes.

As part of the pre-design activities, the Consultant is required to identify the potential effects on

adjacent recreational facilities and minimize the relocation of affected facilities as part of the

roadway/bridge project. As with all other adjacent property improvements, the Consultant is

required to provide plans which can be used to construct the necessary improvements either in

conjunction with the roadway/bridge project or as a separate project.

For design guidance, refer to the latest Public Realm Design Manual (UPC) and associated

PRFD design/review standards from the Parks & Recreation Facilities Division (PRFD).



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202.02.15 Historical Site Identification and Preservation

The government recognizes the importance of all historical sites and structures that relate to Abu

Dhabis cultural development. The goal of the government is to identify these sites as they are

discovered, and where appropriate, preserve the sites.

During the pre-design process, information regarding historical sites shall be compiled from

available sources as well as conducting an initial site survey. The Consultant shall also meet with

representatives of the Municipality to determine the significance of the site and present

recommendations as to appropriate preservation procedures

The Consultant should also liaise with the Environment Agency Abu Dhabi (EAD) for preservation

and conservation areas, and the Abu Dhabi Tourism & Culture Authority (TCA) for historical sites.

202.03 NATURAL / ENVIRONMENTAL RESOURCE DATA

ADM regulations require compliance with EAD mandatory procedures relating to environmental

considerations. EAD contact details are given below:

EAD - Headquarters P.O. Box: 45553

Tel: +971 (2) 4454777

Fax: +971 (2) 4463339

E-mail: [email protected]

Al Mamoura Building (A), Muroor Road

Abu Dhabi, United Arab Emirates

Natural/environmental resources within a project study area shall be assessed and considered

during development of the project design. The goal is to develop a functional design that avoids or

minimizes impact to the natural environment to the greatest extent practicable. To facilitate the

planning process involved in the development of the design, the Consultant should map all

environmental resources capable of being placed on a map.

The Consultant is to also liaise with EAD.

202.03.01 Protection of Existing Amenities

Preservation of any existing landscape treatment or plantation adjacent to proposed roadway

projects is extremely important.

PRFD will guide Consultants to the relevant design documents. Pre-design activities include a

survey of existing flora and fauna as part of the design survey stage, in accordance with PRFD

requirements. The results of this survey are to be agreed with ADM, PRFD and EAD. Road/bridge

improvements including utility locations shall be designed to minimize removal of vegetation.

The landscaping survey includes the identification of the number, size, type, condition, and



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location of all trees, shrubs, succulents, flowers, and grasses. The presence of any vegetation that

is specifically protected by decree, or that is considered rare, threatened, or endangered, shall

also be identified during the survey. The survey information should then be presented on a scaled

plot plan. The scale of each sheet should be adequate to clearly convey the information contained

on it. Each sheet should contain a legend, which lists the botanical name of the plant, and its

common name. For trees, the size of the tree shall also be listed. Vegetation surveys shall be in

accordance with BS 5837:2012.

Public Realm Design

All road schemes in urban areas should consider the full right-of-way corridor (ROW) and

therefore include public realm design of the medians, verges and other designated areas within

the project limits. The public realm design should be undertaken by the Consultant, ensuring that

the following are considered as part of the project, if so required:

Right-of-way corridor compliance with the latest standards.

i.e. Urban Street Design Manual (USDM), Utility Corridor Design Manual (UCDM), Public

Realm Design Manual (PRDM), Walking and Cycling Master Plan (WCMP).

Universal access requirements:

Pedestrian and cycling connectivity.

Furnishings.

Planting.

Public realm lighting.

Shading.

Water for irrigation should be sourced from the treated sewage effluent (TSE) network, so all large

distribution lines require design input and approval from the Abu Dhabi Sewerage Services

Company (ADSSC). The Consultant should prepare irrigation designs and obtain PRFD approval

and the same for connections to the existing feeder network. Guidance on design submission

requirements is available from PRFD. All proposals must conform to the latest PRFD Landscaping

and Irrigation requirements to ensure compliance to current standards.

Initial maintenance and operation of the irrigation systems (1 to 2 years) are the responsibility of

the Contractor, after which, if agreed to operate and maintain, reverts to PRFD.

PRFD uses ADM third party design review procedures and Standards, mainly concerning the

maintenance of all assets (including irrigation network, landscaping, etc.).

202.03.02 Topography

Topographic data is important to the development of the Design Concept. Roadway profiles,

horizontal alignment, and drainage, are directly affected by topography, which, in turn, affect the

project cost. As discussed in Section 201.04, Mapping, the Consultant is expected to review

existing maps. In addition, new surveys shall be required to establish the topography for the



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project.

The Consultant should liaise with the ADM GIS Section for topographical information.

202.03.03 Water

The Consultant shall identify and determine the importance of all freshwater and saltwater

features within the study area. Aquifers and wells, especially those that supply drinking water,

shall also be identified within project limits. In developing the design, the Consultant shall avoid

impacts to water resources to the greatest extent possible. If avoidance is not an option, the

Consultant shall develop a design that minimizes impact to water resources.

202.03.04 Flora and Fauna

The Consultant shall describe any existing wildlife habitat within the project study area. The

Consultant is responsible for identifying the types of flora and fauna species, if any, that are likely

to utilize the habitat. The Consultants design shall avoid, where possible, those habitat areas that

support rare, threatened or endangered wildlife species.

202.03.05 Air Quality

The Consultant shall assess a projects affect on existing air quality to determine whether or not it

will result in significant deterioration due to increased air emissions.

202.03.06 Noise

The Consultant shall assess a proposed projects affect on ambient noise levels to determine

whether or not it will result in a significant deterioration from the existing condition. Noise sensitive

receptors, such as mosques, schools and residential dwellings, shall be identified within the

project limits. The Consultant shall strive to develop a design that will have the least increase in

noise levels to these receptors.

202.03.07 Visual / Aesthetic

The Consultant shall assess the existing visual and aesthetic appearance of the project study

area. In developing the design, the Consultant should consider the effect that the project will have

on the visual and aesthetic environment upon build-out. Views from the project of the surrounding

environment as well as views of the project from adjacent vantage points shall be considered. The

objective of the design is to develop a project that compliments rather than contrasts the existing

visual and aesthetic character of the area.

202.03.08 Hazardous Materials

The Consultant shall conduct a survey to identify the actual presence, or likelihood of hazardous

material sites within the project study area. Ideally, the project design should be developed to

avoid impacting such hazardous sites. This will reduce the health and safety risk and overall



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project cost. If a hazardous materials site cannot be avoided, the Consultant shall take appropriate

steps to remediate the hazardous site prior to construction in order to reduce the potential

health/safety risk.

202.04 ENVIRONMENTAL PERMIT

The Consultant must obtain the Environmental Permit for the concerned project through a third

party accredited environmental consultant, in compliance with the relevant regulations of the EAD.

The updated list of accredited environmental consultants in Abu Dhabi can be downloaded from

the EAD website.

The requirements and processes associated with environmental permitting are described in the

Standard Operating Procedures for Permitting of Development and Infrastructure Projects in Abu

Dhabi.

In addition, technical guideline documents are also available including, for example:

Technical Guidance Document for Preliminary Environmental Review (PER).

Technical Guidance Document for Environmental Impact Assessment (EIA).

Technical Guidance Document for Strategic Environmental Assessment (SEA).

Technical Guidance Document for Construction Environmental Management Plan (CEMP).

Other guidelines are available dependent upon the requirements of specific projects and these are

available for viewing on the Environment Agency website.

203 TECHNICAL INVESTIGATIONS

203.01 INTRODUCTION

All roadway and bridge projects require technical investigations, to establish the basic building

blocks of the design. These technical investigations are initiated in the data collection phase and

continue through the development of the Design Concept Report. This subsection identifies the

initial activities associated with these investigations. The basic technical investigations include:

Geotechnical

Traffic Data Collection

Survey Control/Field Surveys

Drainage Surveys.

203.02 GEOTECHNICAL

The objective of highway geotechnical work should be to seek, interpret, and evaluate subsurface

and surface data in order to predict the behaviour of the soils and materials along, and adjacent



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to, the alignment. The resulting information is to be presented in a technical report to be used in

the project design.

Data collection includes research of existing geotechnical reports which were prepared for other

projects in the geographic area as well as field reviews and preliminary testing. For review of

existing geotechnical reports, ADM as well as other Municipality and Government agencies, which

hold relevant information of geotechnical information in the immediate vicinity of the project,

should be contacted. The existing data will be used to define the number of additional soil borings

and the testing requirements for the boring program as described in Part 1 - Section 300, Design

Concept Report and Part 3 - Section 700, Geotechnical. The Consultant shall obtain approval

from ADM, Traffic Police and any other concerned agencies prior to commencing geotechnical

investigations.

203.03 TRAFFIC DATA COLLECTION

203.03.01 Introduction

Traffic volumes are needed for highway planning, project cost-benefit comparisons, priority

determinations, analyzing, monitoring and controlling traffic movement on the highways, traffic

accident surveillance, research purposes, highway maintenance, public information, highway

legislation and for many other purposes.

However, it should be noted that the traffic data collection and projection techniques described

herein are specifically intended for providing traffic volume data required for roadway and bridge

design.

The procedures which follow establish the minimum requirements. However, this does not

preclude the Engineer from using more sophisticated procedures, including the use of data from

permanent automatic collection stations, if available.

The Consultant should coordinate fully with the ADM Traffic Services Section and the DoT.

203.03.02 Traffic Projections

ADM roadways are designed to serve traffic volumes anticipated over a 20-year time frame.

Projections of future traffic shall primarily be derived from applicable traffic models of the

concerned area, as agreed with ADM.

In cases where traffic model outputs are not required or not available, growth factors derived from

historical count data compared with data from recent surveys may be used. The application of

such growth factors should be agreed with ADM.

Existing flows may be obtained from existing Automatic Traffic Counters (ATC) located within the

city. The Traffic Service Section may be able to provide assistance in this regard.



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203.03.03 Procedures for Collecting Traffic Volumes

The following sections outline the methods of obtaining traffic volume data.

203.03.03.01 Automatic Traffic Counts

The duration of counts should be agreed with ADM. Data supp

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Documents

structure design

roadway system

roadway classifications

roadway development

design class designation

table of contents

interim advice notes

techncical circulars