3. Flow on a road is q1=1800veh/hr/lane, and density is kl=14.4 veh/km/lane. To reduce speeding on a section of highway, a police cruiser decides to implement a rolling roadblock, and to travel in the left lane at the speed limit (v2=88km/hr) for 10 km. This ensures that no overtaking is done by the vehicles in this platoon. After the police cruiser joins, the platoon density increases to 20 veh/km/lane and flow drops. Find: (a) How many vehicles will be in the platoon when the police car leaves the highway (b) How long it will take for the queue to dissipate

3. Flow on a road is q1=1800veh/hr/lane, and density is kl=14.4 veh/km/lane. To reduce speeding on a section of highway, a police cruiser decides to implement a rolling roadblock, and to travel in the left lane at the speed limit (v2=88km/hr) for 10 km. This ensures that no overtaking is done by the vehicles in this platoon. After the police cruiser joins, the platoon density increases to 20 veh/km/lane and flow drops. Find: (a) How many vehicles will be in the platoon when the police car leaves the highway (b) How long it will take for the queue to dissipate

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter3: Characteristics Of The Driver, The Pedestrian, The Bicyclist, The Vehicle, and The Road

Section: Chapter Questions

Problem 12P

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3. Flow on a road is ql=1800veh/hr/lane, and density is kl=14.4 veh/km/lane. To reduce speeding on a section of highway, a police cruiser decides to implement a rolling roadblock, and to travel in the left lane at the speed limit (v2=88km/hr) for 10 km. This ensures that no overtaking is done by the vehicles in this platoon. After the police cruiser joins, the platoon density increases to 20 veh/km/lane and flow drops. Find: (a) How many vehicles will be in the platoon when the police car leaves the highway (b) How long it will take for the queue to dissipate
Problem Exercise Traffic flow on a road is 1800veh/hr/lane and density of 14.4 veh/km/lane. To reduce speeding on a section of highway, a police cruiser decides to implement a rolling roadblock, and to travel in the left lane at the speed limit of 88 kph for 10 km. No one dares to pass. After the police cruiser joins the traffic flow, the platoon density increases to 20veh/km/lane and traffic flow drops. • How many vehicles (per lane) will be in the platoon when the police car leaves the highway? WBA 'A. B,
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