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MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
5th Edition
ISBN: 9781305581159
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Question
Chapter 3, Problem 8P
To determine
(a)
Minimum stopping sight distance for a level roadway.
To determine
(b)
Minimum stopping sight distance for a roadway with maximum grade of 7 %
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The design speed of a multilane highway is 70 mi/h. Determine the following. Note: The term
a
g
in the appropriate equation is typically rounded to 0.35 in calculations. Assume perception reaction time = 2.5 sec.
(a)
the minimum stopping sight distance (in ft) that should be provided for a level roadway
ft
(b)
the minimum stopping sight distance (in ft) that should be provided for a roadway with a maximum grade of 6 percent.
ft
Calculate the minimum passing sight distance required for a two-lane rural
roadway that has a posted speed limit of 45 mi/h. The local traffic engineer
conducted a speed study of the subject road and found the following:
average speed of the passing vehicle was 47 mi/h with an average
acceleration of 1.43 m/h/sec, and the average speed impeder vehicles was
40 mi/h. Use t1=4.0 and t2=10
The design speed of a multilane highway is 65 mi/h. Determine the following. Note: The term
a
g
in the appropriate equation is typically rounded to 0.35 in calculations. Assume perception reaction time = 2.5 sec.
(a)
the minimum stopping sight distance (in ft) that should be provided for a level roadway
Your response differs from the correct answer by more than 10%. Double check your calculations. ft
(b)
the minimum stopping sight distance (in ft) that should be provided for a roadway with a maximum grade of 3 percent.
Your response differs from the correct answer by more than 10%. Double check your calculations. ft
Chapter 3 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
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