Q.6 2082
Bhadra IOE Transportation Engineering II
A new four lane divided highway is to be for the ADT of 8000
truck traffic based on the
last count. The directional split of traffic is 55:45.
Vehicle damage factor based on axle
load survey was 4.0. Design a suitable pavement section for
a design life of 15 years. The
last traffic count was taken 1 year back and the project
would be completed in 2 years
from now. Growth rate of traffic = 7%
The results of subgrade soil in CBR at seven locations obtained
in certain stretch of road
are given below.
|
S.No |
Chainage |
Test CBR
result in (%) |
|
1 |
0+50 |
12 |
|
2 |
0+350 |
8 |
|
3 |
0+500 |
7 |
|
4 |
0+650 |
8 |
|
5 |
0+800 |
6 |
|
6 |
0+950 |
5 |
|
7 |
1+500 |
5 |
