Question 2. The capacity of a lane of a highway is 1200 veh/h and the free flow speed at the location is 60 mph. (a) What is the jam density of the lane? (b) Write the Greenshield's model equation for speed-vs-density relation. (c) If the speed at a given time is 50 mph, what is the flow corresponding rate? Use the Greenshield's model derived in (b). (d) What is the speed and density when the flow rate is equal to the capacity?

Question 2. The capacity of a lane of a highway is 1200 veh/h and the free flow speed at the location is 60 mph. (a) What is the jam density of the lane? (b) Write the Greenshield's model equation for speed-vs-density relation. (c) If the speed at a given time is 50 mph, what is the flow corresponding rate? Use the Greenshield's model derived in (b). (d) What is the speed and density when the flow rate is equal to the capacity?

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 25P

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