A vehicle moving at a speed of 50 mph is slowing traffic on a two-lane highway. What passing sight distance is necessary, in order for a passing maneuver to be carried out safely? Calculate the passing sight distance. In your calculations, assume that the following variables have the values given:  Passing vehicle driver's perception/reaction time = 2.5 sec  Passing vehicle's acceleration rate = 1.47 mph/sec  Initial speed of passing vehicle = 50 mph  Passing speed of passing vehicle = 60 mph  Speed of slow vehicle = 50 mph  Speed of opposing vehicle = 60 mph  Length of passing vehicle = 22 ft  Length of slow vehicle = 22 ft  Clearance distance between passing and slow vehicles at lane change = 20 ft  Clearance distance between passing and slow vehicles at lane re-entry = 20 ft  Clearance distance between passing and opposing vehicles at lane re-entry = 250 ft

A vehicle moving at a speed of 50 mph is slowing traffic on a two-lane highway. What passing sight distance is necessary, in order for a passing maneuver to be carried out safely? Calculate the passing sight distance. In your calculations, assume that the following variables have the values given:  Passing vehicle driver's perception/reaction time = 2.5 sec  Passing vehicle's acceleration rate = 1.47 mph/sec  Initial speed of passing vehicle = 50 mph  Passing speed of passing vehicle = 60 mph  Speed of slow vehicle = 50 mph  Speed of opposing vehicle = 60 mph  Length of passing vehicle = 22 ft  Length of slow vehicle = 22 ft  Clearance distance between passing and slow vehicles at lane change = 20 ft  Clearance distance between passing and slow vehicles at lane re-entry = 20 ft  Clearance distance between passing and opposing vehicles at lane re-entry = 250 ft

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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