A roadway with only one lane in each direction carries traffic of 1200 veh/h at a point where there is a no passing solid line. The density is 20veh/h. A truck carrying a heavy load enters the traffic at 34km/h and this continues for a stretch of 5km before there is a passing lane and the truck can move over to the left hand lane. During this time the vehicle density increased to 80veh/km, decrasing the flow to 900veh/h. Calculate the length of the platoon and the number of vehicles involved.

A roadway with only one lane in each direction carries traffic of 1200 veh/h at a point where there is a no passing solid line. The density is 20veh/h. A truck carrying a heavy load enters the traffic at 34km/h and this continues for a stretch of 5km before there is a passing lane and the truck can move over to the left hand lane. During this time the vehicle density increased to 80veh/km, decrasing the flow to 900veh/h. Calculate the length of the platoon and the number of vehicles involved.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter6: Fundamental Principles Of Traffic Flow

Section: Chapter Questions

Problem 21P

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