What will be the value of head light sight distance for a road having a stopping sight distance of 160 m?
- A100 m
- B120 m
- C140 m
- D160 mCorrect
Solution
Concept
Headlight SD
Step-by-step solution
1. Headlight sight distance = SSD = 160 m.
Explanation
Valley curves are designed for the SSD.
Why the other options are wrong
Other values are not equal to SSD.
Shortcut
HSD = SSD.
Correct answer: D) 160 m