A driver with 20/40 vision needs 2 sec to read a sign posted on a freeway. A person with 20/20 vision can read this sign at a distance of 225 ft. Do you feel that the driver has suffi- cient time to read this sign driving at a speed of 55 mph? At what speed would he have to travel just io be able to read the sign? Discuss this problem.

A driver with 20/40 vision needs 2 sec to read a sign posted on a freeway. A person with 20/20 vision can read this sign at a distance of 225 ft. Do you feel that the driver has suffi- cient time to read this sign driving at a speed of 55 mph? At what speed would he have to travel just io be able to read the sign? Discuss this problem.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter7: Intersection Design

Section: Chapter Questions

Problem 27P

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