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Multiple chainage or
station
Example
Roads - General
12
13
14 15
11
10
10
9
9
8
7
a
8
6
7
5
6
4
5
3
2
1
Road_062
Gap chainage or station equation. Chainage or station back 10 = chainage or
station ahead 15.
a Old
b New
10
9
11
12
8
7
6
5
6
a
4
5
3
4
3
2
2
Road_063
Overlap chainage or station equation. Chainage or station back 13 = chain-
age or station ahead 7.
a New
b Old
In the case of the overlap shown in the example, the chainages or stations
between seven and thirteen appear twice. When a duplicate chainage or sta-
tion is entered, a message asks which one is to be used.
As more than one chainage or station equation is possible, a chainage or sta-
tion can appear more than twice on a design. In this example, the chainages or
stations 11 to 13 appear three times.
0.. ..5 6 7 8 9 10 11 12 13
Road_069
b
1 2
3 4 5 6 7 8 9 10
13
7
b
1 2
3
4
5
6
7
7 8 9 10 11 12 13 14 15
15 16 17 18 19 20 21 22 23
8
9
10
11
12
13
7 8 9 10 11 12
11 12 13 14 15 16.. ..24
691
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