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Highway Engineering - Engineering

Q1:

If L is the length of vehicles in metres, C is the clear distance between two consecutive vehicles (stopping sight distance), V is the speed of vehicles in km/hour, the maximum number N of vehicles/hour, is

A

B

C

D

E

ANS:A -

Density = 1000/[Average space headway (in meters)].
Traffic capacity or volume = (Velocity * Traffic density).

= (1000*Velocity)/(Average space headway)

S= Center to Center spacing between two consecutive vehicles = average space headway.

S=L/2+L/2+C=L+C=Average space headway.

Traffic density = 1000V/L+C -> Answer.