A six-lane freeway (three lanes in each direction) has regular weekday users and currently operates at maximum LOS C conditions. The lanes are 11 ft wide, the right-side shoulder is 4 ft wide, and there are two ramps within three miles upstream of the segment midpoint and one ramp within three miles downstream of the segment midpoint. The highway is on rolling terrain with 10% large trucks and buses (no recreational vehicles), and the peak-hour factor is 0.90. 6.2 Consider the freeway above. At one point along this freeway there is a 4% upgrade with a directional hourly traffic volume of 5435 vehicles. If all other conditions are as described in Problem 6.1, how long can this grade be without the freeway LOS dropping to F?
A six-lane freeway (three lanes in each direction) has regular weekday users and currently operates at maximum LOS C conditions. The lanes are 11 ft wide, the right-side shoulder is 4 ft wide, and there are two ramps within three miles upstream of the segment midpoint and one ramp within three miles downstream of the segment midpoint. The highway is on rolling terrain with 10% large trucks and buses (no recreational vehicles), and the peak-hour factor is 0.90. 6.2 Consider the freeway above. At one point along this freeway there is a 4% upgrade with a directional hourly traffic volume of 5435 vehicles. If all other conditions are as described in Problem 6.1, how long can this grade be without the freeway LOS dropping to F?
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter9: Capacity And Level Of Service For Highway Segments
Section: Chapter Questions
Problem 8P
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