TIME-CHAINAGE DIAGRAM
Sewon Kim, Kevin Tran, Mary Svennerborg
Contents
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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?
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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 benefit?
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The principal benefit is the management of work in
confined spaces where typically only one operation
can be performed at a time.
Description of Diagram
3.History
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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
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Roads
Railways
Pipelines
Tunnels
Transmission Lines
Bridges
4. Advantage of Time-Chainage chart
Easy to know
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The order of activities or operations
Where activities are happening locationally
How activities must progress in relation to direction
and distance
Time, key dates and holidays, etc.
5.Example
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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
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Fencing
Drainage
Bulk Earthworks
Footbridge
Retaining wall
Road Surfacing
6 Steps
6 Steps to draw diagram
Step 1
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Draw the diagram layout
Decide the intervals of chainage
1000m
6 Steps to draw diagram
Step 2
0 26
H
…
28
40
3…
Chainage
2…
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0
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Select either the horizontal or vertical format
Draw an outline with time and distance (chainage)
Add main holiday periods allowing 2 weeks
me(…
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6 Steps to draw diagram
Step 3
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Make the main program activities or operations
OPERATION
EXAMPLE
Set up site
Offices for
contractor and
engineer
Activity 1
Fencing
Activity 2
Drainage
Activity 3
Bulk Earthworks
Activity 4
Foot Bridge
Activity 5
Retaining Wall
Activity 6
Road Surfacing
Holiday
Christmas Shut down
6 Steps to draw diagram
Step 4
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Fill in the ‘site set-up’ and ‘clear site’ activities
6 Steps to draw diagram
Step 5
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Decide in turn where and when each activity will
take place
12
15
20
25
Act2
Act1
-16
Act3
-16
Act4
Act5
15
16
-24
-25
30
35
Project Completion
Act6
6 Steps to draw diagram
Step 6
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Complete all activities on the list
6.Think about
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Advantage of Horizontal axis
-Easy to notice that has to be constructed.
Advantage of Vertical axis
-More easier to read by those familiar with bar
charts.
The choice is a matter of personal preference.
References
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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