GATE CE 2020 Set 2 — Question 55
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Transportation Engineering → Cross-Section & Sight Distance → Intermediate Sight Distance
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Question
The design speed of a two-lane two-way road is and the longitudinal coefficient of friction is . The reaction time of a driver is . Consider acceleration due to gravity as . The intermediate sight distance (in m, round off to the nearest integer) required for the road is __________.
Correct answer
154 to 178
Solution
First, calculate the Stopping Sight Distance ():where:
(reaction time)
(coefficient of friction)Intermediate Sight Distance () is defined as twice the Stopping Sight Distance:Rounding off to the nearest integer, the required intermediate sight distance is .
(reaction time)
(coefficient of friction)Intermediate Sight Distance () is defined as twice the Stopping Sight Distance:Rounding off to the nearest integer, the required intermediate sight distance is .
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