rocks - documentation - power pointpresentation (version 2.01)

8/13/2019 ROCKS - Documentation - Power PointPresentation (Version 2.01)

1/32

A

NNEX2

ROCKS

RO

adCosts

Knowledg

eSystem

Version

2.01

(09/09/0

2)

PowerPo

intPresen

tation

September2002

TheWorld

Bank

Transportand

UrbanDevelopmentDepartment

TUDTR


2/32

ROCKS

ROad Costs Knowledge SystemVersion 2.01 (09/09/02)

September 2002

The World BankTransport and Urban Development Department

TUDTR


3/32

WORLD BANK ROCKS- ROad Costs Knowledge System

2

Overview

1. Background and Objective

2. Basic FrameworkKey Concepts

3. System Components

4. Development Network5. World DatabaseData Description

6. Average and Range Unit Costs

7. Sample Set of Outputs8. Dissemination and Development

9. System Enhancements & CD


4/32


3

Background

Demand for data on road costs

Data locally available, but scattered and collectedin unsystematic and unstructured ways

There is a need of a framework to assess costdifferences among regions, terrains, cost types,contract types, contractor types, etc.

WB First attempt (1999): Road Works per Kmfrom 67 WB ICRs (Period 19951999)Study found that the level of detail provided in thesedocuments was limited and that there is a world wideneed for a framework to collect this information


5/32


4

Objective

Develop an international knowledge system onroad work coststo be used primarily in developingcountriesto establish an institutional memory, andobtain average and range unit costs based onhistorical data that could ultimately improve thereliability of new cost estimates.Reliable estimatesof construction costs areimportant for:

comparing different project alternatives,

justifying a project on economic grounds,

planning the means of financing it, and

reducing the risks generated by cost overruns.


6/32


5

Average and Range Unit Costs

Among many others, average and range unit costscan be used to:

monitor and assess incountry road costvariations overtime,

compare costs from different financing sourcesand at different stages (estimatecontractactual),

compare road costs among country regions,

better understand the impact of different types ofterrain, climate, contract, contractor, etc.,

generate data for evaluation modules like the lifecycle analysis applied in HDM4.


7/32


6

Product 1. Basic FrameworkKey ConceptsConcept 1.Road Works Classification and

Predominant Work Activity

Concept 2.Unit Cost Per Length or

Unit Cost Per AreaConcept 3.Database Minimum Data Set

Requirements

Concept 4.Alternative Classes

of Input DataConcept 5.Single Currency and

Single Reference Date


8/32


7

Concept 1:Road Works Classification and Work Type

Work Category Work Class Work Type Work Category Work Class Work Type

Preservation Routine Routine Maintenance Development Improvement Partial Widening

Periodic Grading Partial Widening and

ReconstructionGravel Resurfacing

WideningConcrete PavementPreventive Treatment Widening and

ReconstructionBituminous PavementPreventive Treatment Upgrading

Unsealed New Construction New 1L RoadPreventive Treatment

New 2L Highway

Surface TreatmentResurfacing New 4L Highway

Asphalt Mix New 6L Highway

ResurfacingNew 4L Expressway

Rehabilitation Strengthening

New 6L ExpresswayConcrete PavementRestoration Number of Lanes

1L - One Lane 4L - Four Lane

Reconstruction 2L - Two Lane 6L - Six Lane


9/32


8

Concept 1:PRESERVATIONWORKSPredominant Work Activities Recommended Alternat iveWork Category Work Class Work Type Predominant Work Activity Unit Cost Unit Cost

Preservation Routine Routine Maintenance Routine Maintenance 1L Road $/km-year Routine Maintenance Unsealed 2L Highway

Routine Maintenance Block 2L Highway

Routine Maintenance Bituminous 2L HighwayRoutine Maintenance Concrete 2L Highway

Routine Maintenance Bituminous > 2L HighwayRoutine Maintenance Concrete > 2L HighwayRoutine Maintenance Bituminous Expressway

Routine Maintenance Concrete Expressway

Periodic Grading Light Grading $/kmHeavy Grading

Gravel Resurfacing Regravelling $/m2 $/km

Concrete Pavement Concrete Pavement Preventive Treatment $/m2 $/km

Preventive Treatment

Bituminous Pavement Fog Seal $/m2 $/kmPreventive Treatment Rejuvenation

Unsealed Unsealed Preventive Treatment $/m2 $/km


Surface Treatment Slurry Seal or Cape Seal $/m2 $/kmResurfacing Single Surface Treatment

Double Surface Treatment

Triple Surface Treatment

Asphalt Mix Asphalt Overlay < 40 mm $/m2 $/km

Resurfacing Asphalt Overlay 40 to 59 mm

Rehabilitation Strengthening Asphalt Overlay 60 to 79 mm $/m2 $/kmAsphalt Overlay 80 to 99 mmAsphalt Overlay > 99 mm

Mill and ReplaceBonded Concrete OverlayUnbounded Concrete Overlay

Concrete Pavement Concrete Slab Replacement $/m2 $/kmRestoration Concrete Slab Repair

Concrete Diamond Grinding

Reconstruction Reconstruction Unsealed $/m2 $/km

Reconstruction Block

Reconstruction BituminousReconstruction Concrete


10/32


9

Concept 1:DEVELOPMENT WORKSPredominant Work Activities RecommendedWork Category Work Class Work Type Predominant Work Activity Unit Cost

Development Improvement Partial Widening Partial Widening to Unsealed 2L $/kmPartial Widening to Block 2LPartial Widening to Bituminous 2L

Partial Widening to Concrete 2LPartial Widening and Partial Widening to Unsealed 2L and Reconstruct ion $/kmReconstruct ion Partial Widening to Block 2L and Reconstruction

Partial Widening to Bituminous 2L and ReconstructionPartial Widening to Concrete 2L and Reconstruction

Widening Widening Adding Bituminous 1L $/kmWidening Adding Bituminous 2LWidening Adding Bituminous 4LWidening Adding Concrete 1LWidening Adding Concrete 2LWidening Adding Concrete 4L

Widening and Widening Adding Bituminous 1L and Reconstruction $/kmReconstruct ion Widening Adding Bituminous 2L and Reconstruction

Widening Adding Bituminous 4L and ReconstructionWidening Adding Concrete 1L and ReconstructionWidening Adding Concrete 2L and ReconstructionWidening Adding Concrete 4L and Reconstruction

Upgrading Upgrading Unsealed to Unsealed 2L Highway $/kmUpgrading Unsealed to Block 2L HighwayUpgrading Unsealed to Bituminous 2L HighwayUpgrading Unsealed to Concrete 2L HighwayUpgrading Block to Bituminous 2L HighwayUpgrading Block to Concrete 2L Highway

New Construction New 1L Road New Unsealed 1L Road $/kmNew Block 1L Road

New Bituminous 1L RoadNew Concrete 1L Road

New 2L Highway New Unsealed 2L Highway $/kmNew Block 2L HighwayNew Bituminous 2L HighwayNew Concrete 2L Highway

New 4L Highway New Bituminous 4L Highway $/kmNew Concrete 4L Highway

New 6L Highway New Bituminous 6L Highway $/kmNew Concrete 6L Highway

New 4L Expressway New Bituminous 4L Expressway $/kmNew Concrete 4L Expressway

New 6L Expressway New Bituminous 6L Expressway $/kmNew Concrete 6L Expressway


11/32


10

Concept 2:

Unit Cost per Length and Unit Cost per AreaIt includesall civilworks costs:

Pavement Mobilization

Drainage

Major Structures

Line markings/signs Contingencies

Taxes

It does not include

other agency costs: Design

Land Acquisition

Resettlement

Supervision


12/32


11

Concept 2: (Cont.)

Unit Cost per Carriageway AreaCost per Length. Refers to the Cost per Km. of roadsection.

Cost per Area.Refers to the Unit Cost per squaremeter, calculated based on the width of the maincarriageway, and excluding the width of the shoulders.

CarriagewayLane Lane

ShoulderShoulder

Bicycle

Lane

Platform


13/32


12

Concept 3: Minimum Data Requirements

Every single data collected

to be a valid entryshould

include all the Mandatory

items to generate the

average and range unit costs

UNIT COST

CURRENCYCODE

COSTTYPE

WORK TYPE

COUNTRYNAME

RECORD IDENTIFIER

EXCHANGERATE US

Estimate

ContractActual

PROJECT ORSOURCE NAME

AGENCYID WORKDESCRIPTION

Valid ListClassification

Free Form

Free Form

COSTSOURCESection

Program

($/km - $m2)

COSTDATE

COST DATA WORKS DATA

11Number of Lanes


14/32


13

Concept 4.

Alternative Classes of Input Data Minimum data and highly recommended data set

Country specific classification

Source of information details Cost, contract, contractor and construction

characteristics

Road works characteristics (width, terrain,

climate, thickness, surface type, etc.) Road Works Cost Breakdown (bill of quantities,

labor/equipment/materials, foreign/local currency)

Other Road Agency Costs


15/32


14

Concept 4. Data Collection FormPart ISections 1 through 5 - Cost and Work Description

RecordCountryState, Department or Province

User Classification 1User Classification 2

User Classification 3World Region:

Project or Source NameSection

Report Type

Report LocationCost Date Cost TypeCost Source

Currency Code US$ Exchange RateCost Financing Contract TypeBID Type Contractor Type

Construction Method Economic Cost Factor Taxes (Y/N) Contingencies (Y/N)

Work Description

Work Type

Work Predominant ActivitySection 6 - Road Work Cost per Length

Base Cost (M$) Length (km)

Physical Contingencies (M$) Duration (months)Price Contingencies (M$) Total Cost per Kilometer ($/km)Total Cost (M$) Total Cost per Kilometer (2000 US$/km)

Section 7 - Road Work Cost per AreaTotal Cost per Carriageway Area ($/m2)Total Cost per Carriageway Area (2000 US$/m2)


16/32


15

Concept 4. Data Collection FormPart IISection 8 - Road Work Characteristics

Pavement Width (m) Climate Type

Shoulder Width (mm) Pavement TypeNumber of Lanes Surface ClassResurfacing Layer Thickness (mm) Surface TypeDepth of Milling (mm) Surface MaterialSurface Thickness (mm) Base MaterialBase Thickness (mm) Patching or Crack Sealing Unit Cost ($/m2)Subbase Thickness (mm) Patching or Crack Seal. Quantity (m2/km-year)Structural Number Spot Regravelling or Regravell. Unit Cost ($/m3)Terrain Type Spot Regravelling Quantity (m3/km-year)

Section 9 - Road Work Cost Details (% of Road Work Cost)Mobilization (%)

Demolition and Site Clearance (%)Earthworks (%)Drainage,P Works,Culv.&Min. Bridges (%) Drainage and Protective Works(%)Major Bridges and Structures (%) Culverts and Minor Bridges (%)

Accesses and Junctions (%)Pavement Courses (%) Subbase (%)Shoulder Works (%) Base (%)Line Markings and Signs (%) Subbase and Base (%)Environment (%) Surface (%)Dayworks (%)Other (%)Contingencies (%)Taxes (%)Total (%)Labor (%):Materials (%):Equipment (%):Total (%):Foreign Currency (%): Foreign Currency Code

Section 10 - Other Additional Road Agency Costs (% of Road Work Cost)Land Acquisition (%): Design (%):

Resettlement (%): Supervision (%):Land Acquisition & Resettlement (%):


17/32


16

Concept 5.

Single Currency and Single Reference Date Costs are collected on any currency

Every cost data should have a date associated

with it.

For comparison purposes, all the data is first

converted into a single reference date (using the

CPI of the selected currency), and then

converted into a single currency (using the

exchange rate).

The system presently uses year 2000 as a single

reference date, and US dollars for the single

currency.


18/32


17

Product 2. System Components

ROCKS Database. It is the main element of thesystem and the primary tool to collect and input thedata. It also includes a detailed manual.

ROCKS View Module.This module can be used tofilter, sort, view and print the information stored in theROCKS Database.

ROCKS Statistics Module.It is used to filter, generatestatistical reports, and analyze the information stored

in the ROCKS Database. ROCKS Disbursements Module. It is a tool to

translate a series of actual current disbursement intoa single cost on a single base date.


19/32


18

ComponentsInputs and Outputs

ROCKS DATABASESICRARACAIBRDINDATHAAPOLABGDAARMAGHAAUGAA

VIEW MODULE STATISTICS MODULE

DISBURSEMENTS

MODULE

DATA

COLLECTION

FORM

ROAD WORKSCLASSIFICATION

INPU

T

DAT

A

OUTPUT DATA REPORTS

STATISTICS

AVERAGE AND

RANGE

UNIT COSTS


20/32


19

Product 3. Development Network

SYSTEM TESTING - DATA COLLECTION DATA USERPARTNER DEVELOPER

EAPViet NamThailand

PhilippinesECA

Armenia

PolandAFR

Uganda

GhanaSARIndia

Bangladesh

THE WORLD BANK TRANSPORT UNITSystem Design & Development

Data Collection & Data ConsolidationRoad Agency Training

EXISTING ROCKS DEVELOPMENT NETWORK

COUNTRY AGENCYArmenia Armenia Roads SSCCBangladesh RHD Roads and Highways DepartmentGhana GHA Ghana Highway AuthorityIndia CRRI Central Road Research Institute and NHAIPhilippines DPWHDepartment of Public Works & HighwaysPoland GDDP General Directorate of Public RoadsThailand DOH Department of HighwaysUganda RAFU Road Agency Formation UnitVietnam Ministry of Transport

Planning & Investment Depart.


21/32


20

Product 4. DatabaseWORLDData Description

Source: Mainly World Bank financed projectsICRsPADsWorks ContractsSupervision

ReportsFeasibility StudiesProcurement &

Pavement Information Management Systems. More than 1,500 records from 65 countries.

554 estimates 554 contracts 404 actuals

433 from Programs 1079 from Sections

Costs from 19842002 but mainly 19972002

Period Percentage

1984 1986 1987 1988 1989 19901 7 0 7 14 1

1991 1992 1993 1994 1995 19964 26 74 40 63 126

1997 1998 1999 2000 2001 2002171 165 163 324 243 28 75%

23%

2%

Number of Records per Cost Date

84-90

91-95

96-02


22/32


21

Product 5.

Preservation WorksUnit Costs per km

Work Type Predominant Work Activity Average Minimum Maximum Count

Routine Maintenance Routine Maintenance Unsealed 2L Highway 989 277 1,740 7

Routine Maintenance Bituminous 2L Highway 2,199 656 5,580 40

Grading Light Grading 2L Highway 110 51 205 12

Heavy Grading 2L Highway 522 323 876 6

Gravel Resurfacing Regravelling 2L Highway 15,344 1,997 65,038 130

Bituminous Pavement Fog Seal 2L Highway 8,946 2,805 15,783 18


Surface Treatment Slurry Seal or Cape Seal 2L Highway 10,732 4,452 27,520 33

Resurfacing Single Surface Treatment 2L Highway 18,937 5,295 38,607 38

Double Surface Treatment 2L Highway 27,502 10,684 45,277 55

Asphalt Mix Asphalt Overlay < 40 mm 2L Highway 37,352 12,878 82,320 26

Resurfacing Asphalt Overlay 40 to 59 mm 2L Highway 67,619 21,021 126,131 158

Strengthening Asphalt Overlay 60 to 79 mm 2L Highway 89,933 27,473 157,984 37

Asphalt Overlay 80 to 99 mm 2L Highway 137,445 38,583 403,694 108

Asphalt Overlay > 99 mm 2L Highway 145,853 73,444 273,516 56

Reconstruction Reconstruction Unsealed 2L Highway 36,068 10,046 93,207 24

Reconstruction Bituminous 2L Highway 233,426 20,165 685,105 412

Reconstruction Concrete 2L Highway 262,992 45,069 657,747 17

PRELIMINARY AVERAGE AND RANGE UNIT COSTS US$/km (Year 2000)PRESERVATION WORKS


23/32


22

Product 5.

Development WorksUnit Costs per km


Partial Partial Widening to Bituminous 2L 150,925 135,964 161,677 6

Widening

Partial Widening and Partial W idening to Bituminous 2L and Rec. 378,160 307,222 424,928 13

Reconstruction

Widening Widening Adding Bituminous 2L 486,930 290,776 670,195 22

Widening and Widening Adding Bituminous 1L and Rec. 410,257 262,532 564,575 9

Reconstruction Widening Adding Bituminous 2L and Rec. 1,077,419 705,502 1,417,778 21

Widening Adding Bituminous 4L and Rec. 1,866,207 1,568,359 2,096,415 8

Upgrading Upgrading Unsealed to Unsealed 2L Highway 52,176 12,592 93,205 14Upgrading Unsealed to Bituminous 2L Highway 296,466 73,470 834,428 55

Upgrading Unsealed to Concrete 2L Highway 314,200 92,651 469,815 5

Upgrading Block to Bituminous 2L Highway 325,150 272,527 384,392 3

New 2L Highway New Bituminous 2L Highway 1,256,331 644,786 1,875,104 26

New Concrete 2L Highway 1,023,858 572,502 1,515,835 12

New 4L Highway New Bituminous 4L Highway 2,798,048 2,123,298 4,006,131 10

New Concrete 4L Highway 3,249,687 2,706,956 3,792,418 2

PRELIMINARY AVERAGE AND RANGE UNIT COSTS US$/km (Year 2000)DEVELOPMENT WORKS


24/32


23

Unit Costs per km 2LequivalentFrequency Histogram of Cost per km

Double Surface Treatment 2L Highway

0

1

2

3

4

5

6

7

8

9

10,684

13,345

16,006

18,667

21,328

23,989

26,650

29,311

31,972

34,633

37,294

39,955

42,616

45,277

US$/km (Year 2000)

NumberofObservations


25/32


24

Product 5.

Preservation WorksUnit Costs per M2


Gravel Resurfacing Regravelling 2.42 0.29 10.84 130Bituminous Pavement Fog Seal 1.11 0.35 2.10 18


Surface Treatment Slurry Seal or Cape Seal 1.62 0.74 4.59 33

Resurfacing Single Surface Treatment 2.61 0.81 5.29 38

Double Surface Treatment 3.82 1.53 6.14 55

Asphalt Mix Asphalt Overlay < 40 mm 5.18 1.84 11.28 26

Resurfacing Asphalt Overlay 40 to 59 mm 9.81 3.00 19.16 156

Strengthening Asphalt Overlay 60 to 79 mm 12.74 3.92 21.06 37

Asphalt Overlay 80 to 99 mm 18.66 5.51 38.35 104Asphalt Overlay > 99 mm 20.89 10.49 42.08 56

Reconstruction Reconstruction Unsealed 5.15 1.44 13.32 24

Reconstruction Bituminous 33.35 2.88 97.87 412

Reconstruction Concrete 38.11 6.93 93.96 17

PRESERVATION WORKSPRELIMINARY AVERAGE AND RANGE UNIT COSTS US$/m2 (Year 2000)


26/32


25

Sample Output 1.Cost per Km for Selected Works in Thailand in Million U$/km (Year 2000)

and Cost Adjustment Factors by Terrain Type and RegionWORK ACTIVITY REGIONSlurry Seal or Cape Seal (Reseal) 0.011 0.011 0.011 0.011

Asphalt Overlay 40-59 mm (50 mm) 0.045 0.050 0.045 0.045

Asphalt Overlay 80-99 mm (80 mm) 0.068 0.077 0.068 0.068

Reconstruction Bitum. (50 mm AC) 0.070 0.092 0.071 0.070



TERRAIN TYPE Flat Rolling Mount. Flat Rolling Mount. Flat Rolling Mnt. Flat Rolling Mount.

Widening Adding Bitum. 2L (2L to 4L) 0.470 0.485 0.725 0.548 0.563 0.823 0.489 0.504 - 0.464 0.479 0.720




New Bituminous 2L Highway 0.337 0.351 0.567 0.387 0.401 0.634 0.352 0.366 - 0.332 0.347 0.563



New Bituminous 4L Expressway 2.584 2.406 3.685 2.762 2.539 3.862 2.620 2.443 - 2.575 2.398 3.677


REGION

TERRAIN TYPE Flat Rolling Mount. Flat Rolling Mount. Flat Rolling Mnt. Flat Rolling Mount.

Widening Adding Bi tum. 2L (2L to 4L) 1.00 1.03 1.54 1.00 1.03 1.50 1.00 1.03 - 1.00 1.03 1.55









SOUTHERN REGION

COST ADJUSTMENT FACTORS BY REGION & TERRAIN TYPE f(FLAT = 1.0)

NORTHERN REGION NORTHEASTERN REG. CENTRAL REGION SOUTHERN REGION

NORTHERN REGION NORTHEASTERN REG. CENTRAL REGION


27/32


26

Sample Output 2. Unit Costs per m2 in US$ (Year 2000)

Selected Works for Bituminous Surface ClassWorldwide Data

2.61

3.82

5.18

9.81

12.74

18.66

0.811.53 1.84

3.003.92

5.514.59

5.296.14

11.28

19.16

21.06

38.35

20.89

1.111.62

10.49

0.740.35

42.08

2.10

0

5

10

15

20

25

30

35

40

45

Fog Seal Slurry Seal

or Cape

Seal

Single

Surface

Treatment

Double

Surface

Treatment

Asphalt

Overlay

99 mm

Pavement Preventive Treatment Surface Treatment Resurfacing Asphalt Mix Resurfacing Strengthening

Maximum

Average

Minimum


28/32


27

Sample Output 3Cost Breakdown in Typical Bill of Quantities and Other Agency Costs (%)

India EstimatesWidening Adding 2L and Reconstruction

Road Work Cost Details (% of Road Work Cost)Mobilization (%): 0.5%

Demolition and Site Clearance (%): 0.5%Earthworks (%): 11.9%

Drainage,P Works,Culv.&Min. Bridges (%): 16.8%

Major Bridges and Structures (%): 5.7%

Pavement Courses (%): 49.5%

Line Markings and Signs (%): 5.8%

Contingencies (%): 9.2%Total (%): 100.0%

Land Acquisition (%): 5.1%

Resettlement (%): 3.0%Supervision (%): 6.7%

Other Road Agency Costs (% of Road Work Cost)


29/32


28

Sample Output 4.Comparison between Actual Cost at completion and Estimated Costs at

Appraisal for World Bank financed Projects

All Countries


30/32


29

Sample Output 5. Unit Costs per km in Thousands US$ (Year 2000)

Selected Development WorksWorldwide Data

378487

410

1,077

1,866

296 314

1,024

3,250

263

706

1,568

73 93

645573

2,123

2,707

670

565

1,418

2,096

834

470

1,875

1,516

4,006

3,792

2,798

1,256

151291307

136

425

162

0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

Only

andReconstruction

AddingBitumin.2L

AddingBitumin.1L

AddingBitumin.2L

AddingBitumin.4L

Unsealedto

Bituminous

UnsealedtoConcrete

Bituminous

Concrete

Bituminous

Concrete

Partial Widening toBituminous 2L

Widening Only Widening and Reconstruction Upgrading 2L Highway New 2L Highway New 4L Highway

Thousand

s

Maximum

Average

Minimum


31/32


30

Dissemination Package

Version 2.01 (09/09/02)Microsoft Excel Documents (xls) ROCKSDatabaseWORLD (Version 2.01)

ROCKSDatabaseEMPTY (Version 2.01)

ROCKSModule - View (Version 2.01)

ROCKSModule - Statistics (Version 2.01)

ROCKSModule - Disbursements (Version 2.01)

ROCKSDocumentationData Collection Form (Version 2.01)

ROCKSDocumentationRoad Works Classification (Version 2.01)

ROCKSDocumentationAnnex 1 - Set of Statistics Report (Version 2.01)Microsoft Word Documents (doc) ROCKSDocumentationExecutive Summary (Version 2.01)

ROCKSDocumentationUsers Manual (Version 2.01)

ROCKSDocumentationRead Me First (Version 2.01)Microsoft Power Point Document (ppt) ROCKSDocumentationPower Point Presentation (Version 2.01)


32/32


31

For more information contact:

Rodrigo Archondo-Callao

Fax: 1-202-522-3223

E-mail: [email protected]

The World Bank provides no warranty in terms of correctness, accuracy, currentnessreliability or otherwise regarding the database. The user relies on the productsof the software and the results solely at his or her own risk. In no event will theWorld Bank or anyone else who has been involved in the creation of this productbe liable for its application or misapplication in the f ield. The World Bank reserves theright to make revisions and changes from time to time without obligation to notify anyperson of such revisions and changes.

Disclaimer

The World Bank

Transport & Urban Development Department

1818 H St. NW

Washington, DC 20433 - USA

Alberto Nogales

Fax: 1-202-522-3223

E-mail: [email protected]