construction & civil engineering : operational aspects
DESCRIPTION
Construction & Civil Engineering : Operational Aspects. Operational Material. Outline. Resource Inputs and Basic Headings. 1. Data Requirements. 2. Overall Methodology. 3. A 7-sheet Survey Questionnaire. 4. Overall Validation Process. 5. Timetable. 6. - PowerPoint PPT PresentationTRANSCRIPT
Construction & Civil Engineering:
Operational Aspects
Operational Material
A 7-sheet Survey Questionnaire
Resource Inputs and Basic Headings
Outline
Overall Validation Process
Timetable
Overall Methodology
1
3
4
5
6
2 Data Requirements
2
Classification of the Construction Sector
Construction and Civil
Engineering
3
3 Basic Headings
3 Categories of Input
Resources
50 Input Resources
Residential Building
Civil Engineerin
g
Non-Residential Building
MachineryEquipmentLabor
38
5
7
Materials & Products
Equipment items
Labour services
MachineryEquipmentLabor
38
5
7
Materials & Products
Equipment items
Labour services
MachineryEquipmentLabor
38
5
7
Materials & Products
Equipment items
Labour services
Data Requirements
Materials
Equipment
Labour
Residential Non Residential
Civil Engineer.Expenditure
ValueExpenditure
ValueExpenditure
Value
1
…
38
1
…
5
1
…
7
4
Importance Price Importan
ce Price Importance Price
Importance Price Importan
ce Price Importance Price
Importance Price Importan
ce Price Importance Price
Hire Rate
Hire Rate
…
Hire Rate
Hire Rate
…
Hire Rate
Hire Rate
…
Labor Rate
Labor Rate
…
Labor Rate
Labor Rate
…
Labor Rate
Labor Rate
…
Contractor’s mark-ups
Professional Fees …
…
…
…
…
…
Resource Mix [%]
Resource Mix [%]
Resource Mix [%]
Resource Mix [%]
Resource Mix [%]
Resource Mix [%]
Resource Mix [%]
Resource Mix [%]
Resource Mix [%]
Calculate unweighted PPPs for the 3 sub-headings by group of countries
Basic Heading (BH) breakdown into 3 sub-headings: Materials, Labor, Equipment
Aggregate the PPPs for the 3 subheadings using the Resource Mixes to obtain weighted PPPs for the 3 BHs
Combine the adjusted BH PPPs using expenditures on the BHs as weights to obtain overall PPPs for construction
Adjust the 3 BH PPPs for mark ups, professional fees and end-user taxes
1
3
4
5
2
Overall Methodology
5
Material
Introduction
A 7-Sheet Survey Questionnaire
Equipment
Labour
Project Prices (Optional – used as checks on input based PPPs)
Explanatory Notes
1
2
3
4
5
6
Supporting Information
5 Technical Survey Forms
Identification Form
7 6
Country
collect mid year national average prices
1
Currency2
Survey respondent
Name3
Employer4
Type of Employer5 Consultant academic research Govern.t Other
Contact details6
Telephone7 Email8
Purpose of the survey
Base date for prices
Please tick box9 Prices averaged over the year Mid year prices
National average price level
Geographical base10 National average factor11
1. Introduction
7
General notes Identify
Locally available
Commonly used
Identical or equivalent to prescribed
items
Materials and
services
and collect their prices
Item descriptions
and units
Not identical but equivalent
Proprietary products
Not metric dimensions
For materials & equipment
For labour
Other notes (materials, equipment, labour)
If products specs.
Columns 10
If alternative
units of measure.
Column 5
Column 4Columns 10, 8 or 7
Report in
Report in
Report in
Report in
For equipment hire, if per day or weekIf unit not
per hour
Report
For labor, if different unit
Situation Number of hours
In Column 5 In Column 8
In Column 4 Column 5
2. Notes – Item Descriptions
8
Types of prices
Geographical locationLocal resource and distribution costs, geographic, seismic or climatic conditions, local market conditions, etc.
2. Notes - Prices
Labour
Actual employment cost
Equipment hire
Rental charges
Materials
Actual purchasers’ prices
Site context Respondents should assume reasonable site contexts with good access.
Size of projects The larger the projects, the larger the quantities, and hence lower unit costs.
Prices can be influenced
9
3. Material – Layout of the questionnaire
Ref ItemSpecifications
NotesPref. Unit
Alternative. Unit
Unit Price
ResidentialNon
ResidentialCivil
EngineeringNotes and Comments
01Aggregat
e for concrete
Clean, hard, strong
m3 1 1 1
02 1 1
03 1
1 1
36 1
37 1
38Electriv
ity
Typical average
commercial..KWhr 1 1
1 4 52 3 6 7 8 9 10
Comments
Enter “1” or “*” if important
10
4. Equipment – Layout of the questionnaire
Ref ItemSpecifications
NotesPref. Unit
Alternative. Unit
Unit Price with operator
Unit Price without operator
Notes and comments
01Wheeled loader and
excavator1.0m3 loader
capacityhour
02
03
04
05Compact track
loader
Rated capacity: 864
kghour
1 4 52 3 6 7 8
Comments
11
5. Labour – Layout of the questionnaire
Ref ItemPref. Unit
Alternative. Unit
Number of hours
Unit Price Notes and comments
01 General (unskilled) labourers hour
02
03
04
05 Structural steel worker hour
1 4 52 3 6 7
Comments
06 Electrician hour
07 Machine (equipment) operator hour
12
6. Project Prices – Layout of the questionnaire
The collection of project prices is optional as those prices are not essential for the calculation of PPPs. They can however be used as an additional resource in the validation process.
Ref Project TypePref. Unit
Alternative. Unit
Notes and comments
01Single storey average quality detached house masonry (brick or block) or timber frame
m 2 floor area
02Two storey attached house, mass market, centre unit in terrace/ row of four units, otherwise as above
m 2 floor area
03
04
1 4 62 3
10Length of concrete sewer pipes, 0.5m diameter, average 2 m depth
m length
11Length of concrete sewer pipes, 1m diameter, average 3 m depth
m length
Unit rate
m 2 floor area
m 2 floor area
5
m length
m length
13
7. Supporting Information – Layout of the questionnaire
The mix of construction resources ResidentialNon
ResidentialCivil
Engineering
01 Construction materials and products
02 Construction equipment
03 Construction site labour
Total project value 100% 100% 100%
Contractors’ mark-ups ResidentialNon
ResidentialCivil E.
01Total mark-up of which, general site costs and temporary works
02 Head office overheads
03 Profit
Other contractors costs04
Professional Fees
01Overall percentage addition for professional services
ResidentialNon
ResidentialCivil E.
14
E27%
L10%
M63%
Residential
E25%
L12%
M63%
Non-residential
E23%
L30%
M47%
Civil Engineering
Example of Resource Mixes
15
Data Compilation
National Level (Intra-country Validation)
Regional Level (Inter-country Validation)
Global Level (Inter-country Validation Across Regions)
Initial data validation Finalization of data
Initial data
validation
Finalization of Data
Analytical Tables
(QT/DT)
Temporal
Analysis
Overall Validation Process
16
2011
Timetable
Price collection will be conducted between
July and October 2011
Jun Jul Aug Sep Oct Nov Dec
Mid year prices to be reported
17
THANK YOU
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