149k views
4 votes
40. AASHTO assumes a deceleration value in calculating SSD of:

a. 14 ft /sec2
b. 11.2 ft /sec2
c. 9.6 ft /sec2
d. 10.2 ft /sec2

User Thebitguru
by
7.6k points

1 Answer

5 votes

AASHTO assumes a deceleration value in calculating stopping sight distance (SSD) of B. 11.2 ft/s^2. This doesn't take any road defects into account.

User Learnings
by
7.2k points