Construction civil engineering operational aspects
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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.

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Construction & Civil Engineering : Operational Aspects

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Construction civil engineering operational aspects

Construction & Civil Engineering: Operational Aspects

Operational Material


Construction civil engineering operational aspects

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


Classification of the construction sector

Classification of the Construction Sector

3 Basic Headings

3 Categories of Input Resources

50 Input Resources

Construction and Civil Engineering

Machinery

Machinery

Machinery

38

38

38

Materials & Products

Materials & Products

Materials & Products

Residential Building

Equipment

Equipment

Equipment

Equipment items

Equipment items

Equipment items

5

5

5

Labor

Labor

Labor

Labour services

Labour services

Labour services

7

7

7

Non-Residential Building

Civil Engineering


Data requirements

Data Requirements

Residential

Non Residential

Civil Engineer.

Expenditure Value

  • Expenditure Value

  • Expenditure Value

Materials

Resource Mix [%]

Resource Mix [%]

Resource Mix [%]

To be obtained from National Accounts as part of the process of splitting GDP into basic headings

1

Importance

Importance

Price

Price

Importance

Importance

Price

Price

Importance

Importance

Price

Price

Importance

Price

Importance

Price

Importance

Price

38

Equipment

Resource Mix [%]

Resource Mix [%]

Resource Mix [%]

Resource Mix [%]

Resource Mix [%]

Resource Mix [%]

Hire Rate

Hire Rate

Labor Rate

Labor Rate

Hire Rate

Labor Rate

1

Labor Rate

Labor Rate

Hire Rate

Hire Rate

Labor Rate

Hire Rate

5

Labour

1

7

Contractor’s mark-ups

Professional Fees


Construction civil engineering operational aspects

Overall Methodology

1

Basic Heading (BH) breakdown into 3 sub-headings: Materials, Labor, Equipment

2

Calculate unweighted PPPs for the 3 sub-headings by group of countries

3

Aggregate the PPPs for the 3 subheadings using the Resource Mixes to obtain weighted PPPs for the 3 BHs

4

Adjust the 3 BH PPPs for mark ups, professional fees and end-user taxes

5

Combine the adjusted BH PPPs using expenditures on the BHs as weights to obtain overall PPPs for construction


Construction civil engineering operational aspects

A 7-Sheet Survey Questionnaire

Identification Form

Introduction

1

Explanatory Notes

2

5 Technical Survey Forms

Material

3

Equipment

4

Labour

5

Project Prices (Optional – used as checks on input based PPPs)

6

Supporting Information

7


Construction civil engineering operational aspects

1. Introduction

  • 1

  • Country

  • 2

  • Currency

  • Survey respondent

  • 3

  • Name

  • Other

  • Govern.t

  • Consultant

  • academic

  • research

  • 4

  • Employer

  • 5

  • Type of Employer

  • 6

  • Contact details

  • 7

  • Telephone

  • 8

  • Email

  • Mid year prices

  • Prices averaged over the year

  • Purpose of the survey

collect mid year national average prices

  • Base date for prices

  • 9

  • Please tick box

  • National average price level

  • 10

  • Geographical base

  • 11

  • National average factor


Construction civil engineering operational aspects

2. Notes – Item Descriptions

Materials and services

Locally available

General notes

Identify

and collect their prices

Identical or equivalent to prescribed items

Commonly used

1

Item descriptions and units

If products specs.

Not identical but equivalent

Columns 10

Proprietary products

Report in

Not metric dimensions

For materials & equipment

Report in

Column 5

If alternative units of measure.

For labour

Report in

Column 4

Other notes (materials, equipment, labour)

Columns 10, 8 or 7

Report in

Report

Situation

Number of hours

For equipment hire, if per day or week

In Column 5

In Column 8

If unit not per hour

In Column 4

Column 5

For labor, if different unit


Construction civil engineering operational aspects

2. Notes - Prices

Types of prices

Materials

Equipment hire

Labour

Actual purchasers’ prices

Rental charges

Actual employment cost

Prices can be influenced

Geographical location

Local resource and distribution costs, geographic, seismic or climatic conditions, local market conditions, etc.

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.


Construction civil engineering operational aspects

3. Material – Layout of the questionnaire

9

1

2

3

4

5

6

7

8

10

Ref

Item

Specifications Notes

Pref. Unit

Alternative. Unit

Unit Price

Residential

Non Residential

Civil Engineering

Notes and Comments

01

Aggregate for concrete

Clean, hard, strong

m3

1

1

1

02

1

1

03

1

1

1

36

1

37

1

38

Electrivity

Typical average commercial..

KWhr

1

1

Enter “1” or “*” if important

Comments


Construction civil engineering operational aspects

4. Equipment – Layout of the questionnaire

1

2

3

4

5

6

7

8

Ref

Item

Specifications Notes

Pref. Unit

Alternative. Unit

Unit Price with operator

Unit Price without operator

Notes and comments

01

Wheeled loader and excavator

1.0m3 loader capacity

hour

02

03

04

05

Compact track loader

Rated capacity: 864 kg

hour

Comments


Construction civil engineering operational aspects

5. Labour – Layout of the questionnaire

1

2

3

4

5

6

7

Ref

Item

Pref. Unit

Alternative. Unit

Number of hours

Unit Price

Notes and comments

01

General (unskilled) labourers

hour

02

03

04

05

Structural steel worker

hour

06

Electrician

hour

07

Machine (equipment) operator

hour

Comments


Construction civil engineering operational aspects

6. Project Prices – Layout of the questionnaire

6

1

2

3

4

5

Ref

Project Type

Pref. Unit

Alternative. Unit

Unit rate

Notes and comments

01

Single storey average quality detached house masonry (brick or block) or timber frame

m 2 floor area

m 2 floor area

02

Two storey attached house, mass market, centre unit in terrace/ row of four units, otherwise as above

m 2 floor area

m 2 floor area

03

04

10

Length of concrete sewer pipes, 0.5m diameter, average 2 m depth

m length

m length

11

Length of concrete sewer pipes, 1m diameter, average 3 m depth

m length

m length

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.


Construction civil engineering operational aspects

7. Supporting Information – Layout of the questionnaire

The mix of construction resources

Residential

Non Residential

Civil Engineering

01

Construction materials and products

02

Construction equipment

03

Construction site labour

Total project value

100%

100%

100%

Contractors’ mark-ups

Residential

Non Residential

Civil E.

01

Total mark-up of which, general site costs and temporary works

02

Head office overheads

03

Profit

04

Other contractors costs

Professional Fees

Residential

Non Residential

Civil E.

01

Overall percentage addition for professional services


Construction civil engineering operational aspects

Example of Resource Mixes


Construction civil engineering operational aspects

Overall Validation Process

Data Compilation

National Level (Intra-country Validation)

Initial data validation

Finalization of data

Regional Level (Inter-country Validation)

Initial data validation

Analytical Tables

(QT/DT)

Temporal Analysis

Finalization of Data

Global Level (Inter-country Validation Across Regions)


Construction civil engineering operational aspects

Timetable

2011

Dec

Nov

Sep

Oct

Jun

Jul

Aug

Price collection will be conducted between July and October 2011

Mid year prices to be reported


Construction civil engineering operational aspects

THANK YOU


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