According to the Indian Road Congress guidelines, what is the value of height of object above road surface for measurement of stopping sight distance?
- A0.10 m
- B0.15 mCorrect
- C0.20 m
- D0.25 m
Solution
Concept
Height of object (IRC)
Step-by-step solution
1. IRC: height of object for SSD = 0.15 m.
Explanation
IRC (since 2001) takes the height of the object as 0.15 m above the road surface and the eye height as 1.2 m.
Why the other options are wrong
0.10, 0.20 and 0.25 are not the current value.
Shortcut
Eye 1.2 m, object 0.15 m.
Correct answer: B) 0.15 m