TIME-CHAINAGE DIA-GRAMSewon Kim, Kevin Tran, Mary Svenner-borg

Contents

What is the Time-Chainage Diagram? What is the principal benefit? History Advantage of Time-Chainage chart Example Think about References

1.What is the Time-Chainage Diagram?

TIME CHAINAGE

1.What is the Time-Chainage Diagram?

It is an extension of the Bar Chart (Gantt Chart).

enables the time dependencies between activities to be shown, together with their order and direction of progress along the job.

2.What is the principal be-nefit? The principal benefit is the management

of work in confined spaces where typi-cally only one operation can be per-formed at a time.

Description of Diagram

3.History

Widely applied roadwork projects and in the development of the motorway system in UK for many years

used for the planning of the tunnelling and fixed equipment installation on the channel tunnel project

Discussed in proceedings of the Institution of Civil Engineers

Applicable only for limited types of project not as widely appreciated in the industry as

bar charts and network techniques.

4. Advantage of Time-Chainage chart

When Constructing

Roads Railways Pipelines Tunnels Transmission Lines Bridges

4. Advantage of Time-Chainage chart

Easy to know

The order of activities or operations Where activities are happening location-

ally How activities must progress in relation

to direction and distance Time, key dates and holidays, etc.

5.Example

Business of constructing the road The length of road = 3.5 Km Starting point of construction = 0+000 Finishing point of construction = 3+500 6 Activities on construction plan 6 Steps to draw Time-Chainage Diagram

6 Activities

Fencing Drainage Bulk Earth-

works Footbridge Retaining

wall Road Surfac-

ing

6 Steps

6 Steps to draw diagram

Step 1

Draw the diagram layout Decide the intervals of chainage 1000m Series1

6 Steps to draw diagram

Step 2

Select either the horizontal or vertical format

Draw an outline with time and distance (chainage)

Add main holiday periods allowing 2 weeks

026

Hol-iday

28

Chainage

Tim

e(

Weeks

)

6 Steps to draw diagram

Step 3

Make the main program activities or op-erations OPERATION EXAMPLE

Set up siteOffices for con-tractor and en-

gineer

Activity 1 Fencing

Activity 2 Drainage

Activity 3 Bulk Earth-works

Activity 4 Foot Bridge

Activity 5 Retaining Wall

Activity 6 Road Surfacing

Holiday Christmas Shut down

6 Steps to draw diagram

Step 4

Fill in the ‘site set-up’ and ‘clear site’ ac-tivities

6 Steps to draw diagram

Step 5

Decide in turn where and when each ac-tivity will take place

25

15

Act112

16

Act21520

Act3 Act4-25

-16

Act5

-16

-24

303

5 Act6Project Comple-tion

6 Steps to draw diagram

Step 6

Complete all activities on the list

6.Think about

Advantage of Horizontal axis -Easy to notice that has to be con-

structed.

Advantage of Vertical axis -More easier to read by those familiar

with bar charts.

The choice is a matter of personal pref-erence.

References

ICE(1992) Proceeding of the Institution of Civil Engineers. The Channel Tunnel Part 1: Tunnels. Thomas Telford.

http://www.noweco.com/qei/qeie08.htm

Cormican,D.(1985) Construction Management: Planning and Finance. Construction Press

http://pclarke.co.uk/html/time_chainage.html