Question

1. At a particular point, the traffic density in a highway segment goes from 50 vpm (vpm=veh/mile) to 150 vpm. Throughout its length, the highway has a capacity of 2500 vph (vph=veh/hr) and a jam density of 200 vpm. Assuming Greenshields model, answer the following questions:

1. Is traffic in a congested or uncongested regime when the density is at 50 vpm?
2. Is traffic in a congested or uncongested regime when the density is at 150 vpm?
3. What is the traffic flow when traffic is at 50 vpm?
4. What is the traffic flow when traffic is at 150 vpm?
5. Compute the shockwave speed.
6. Describe, in words, what is happening in this highway.

PLEASE ANSWER ALL

Answer 1