A traffic stream is moving at a steady state when entering a mountain grade. Upon enteringthe grade, the speed, density and flow are 72 km/h, 25 veh/km and 1800 veh/hrrespectively. On the grade, a truck drops to a speed of 15 km/h causing traffic to bunch upto a density of 85 veh/km. When the truck pulls over, traffic accelerates to the maximumflow until steady state flow conditions resume.Calculate (a) the flow of traffic behind the truck on the mountain grade(b) the jam density and free flow speed for this road(c) the density and speed when traffic resumes a steady state flow(d) the maximum flow

The flow of traffic behind the truck on the mountain grade is 1275 vehicles per hour.The jam density…

Answered: A traffic stream is moving at a steady…

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 8P

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