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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: 9781305577398
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Chapter 7, Problem 11P
To determine
The new pavement design for the right turn, where the
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Highway curve with a radius of 300m is to be super elevated to accomodate a normal speed of 72 kph. Calculate the required super elevation e if the width b of the pavement is 10m
A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions (fLw = 6.0
mph) 4 ft from the right edge of the traveled pavement (fic = 0.8 mph). There are five ramps within three miles
upstream of the segment midpoint and four ramps within three miles downstream of the segment midpoint. A
directional peak-hour volume of 2000 vehicles (primarily commuters) is observed, with 600 vehicles arriving in
the highest 15-min flow rate period. The traffic stream contains 12% large trucks (ET = 2.5) and buses and 6%
recreational vehicles (ER = 2.0).
1.) What is the estimated free-flow speed of the traffic stream in mph (whole number, nearest 5)?
2.) What is the peak-hour factor
3.) What is the heavy-vehicle adjustment factor?
4.) What is the service flow rate?
5.) What is the service measure value if the average speed of the traffic stream is 65 mph
A minor 2-lane roadway with design speed of 45 mph crosses a major 2-lane roadway with design speed of 50 mph at 90 degree angle at an at-grade T-intersection. All lanes are 12 ft wide. If a stop sign is installed on the minor road, determine the dimensions ofallrequired clear sight triangles at this intersection for passenger cars(Case B, stop sign control on the minor road).
Chapter 7 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
Ch. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - Prob. 15PCh. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - Prob. 22PCh. 7 - Prob. 23PCh. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - Prob. 28P
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