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The design speed on a road is 60 kmph. Assuming the driver reaction time of 2.5 seconds and coefficient of friction of pavement surface as 0.35, the required slopping distance for two-way traffic on a single lane road is
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- 82.1 m
- 102.4 m
- 164.2 m
- 186.4 m
Correct Option: C
SSD = vt + | ||
2g |
v = 60 × | = 16.67 m/s | |
18 |
SSD = 16.67 × 2.5 | = 82.134 m | |
2 × 9.81 × 0.35 |
For 2 way traffic, SSD' = 2 × SSD = 164.27 m