A six-lane freeway (three lanes in each direction) in rolling terrain has 11-ft lanes and obstructions 4 ft from the right edge of the traveled pavement. 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 conta
A six-lane freeway (three lanes in each direction) in rolling terrain has 11-ft lanes and obstructions 4 ft from the right edge of the traveled pavement. 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 conta
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter7: Intersection Design
Section: Chapter Questions
Problem 8P
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A six-lane freeway (three lanes in each direction) in rolling terrain has 11-ft lanes and obstructions 4 ft from
the right edge of the traveled pavement. 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 and buses and 6% recreational vehicles. What is
the density of the traffic stream (in pc/mi/ln)?
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