Cars are traveling on level terrain at 64 mph on a road with a coefficient o sion of 0.8. The driver of car 1 has a 2s perception/reaction time and the 2 has a 1.6s perception reaction time. Both cars are travelling side by sid rivers are able to stop their respective cars in the same distance after first dway obstacle (perception/reaction plus vehicle stopping distance). If the fhrionc cort

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
Question
100%
Two cars are traveling on level terrain at 64 mph on a road with a coefficient of
adhesion of 0.8. The driver of car 1 has a 2s perception/reaction time and the driver
of car 2 has a 1.6s perception reaction time. Both cars are travelling side by side and
the drivers are able to stop their respective cars in the same distance after first seeing
a roadway obstacle (perception/reaction plus vehicle stopping distance). If the braking
efficiency of car 2 is 0.75, determine the braking efficiency of car 1.
Transcribed Image Text:Two cars are traveling on level terrain at 64 mph on a road with a coefficient of adhesion of 0.8. The driver of car 1 has a 2s perception/reaction time and the driver of car 2 has a 1.6s perception reaction time. Both cars are travelling side by side and the drivers are able to stop their respective cars in the same distance after first seeing a roadway obstacle (perception/reaction plus vehicle stopping distance). If the braking efficiency of car 2 is 0.75, determine the braking efficiency of car 1.
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