A vehicle is travelling at a speed of 120km/hrs on a roadway segment with 2% upgrade. After the driver started to brake, it took 180meters to come to a full stop. What is the coefficient of friction on this surface? In the previous example, if the coefficient of friction on this surface is 0.3 and the maximum braking distance is 150m, what should be the speed limit?

A vehicle is travelling at a speed of 120km/hrs on a roadway segment with 2% upgrade. After the driver started to brake, it took 180meters to come to a full stop. What is the coefficient of friction on this surface? In the previous example, if the coefficient of friction on this surface is 0.3 and the maximum braking distance is 150m, what should be the speed limit?

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 10P

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