3. A six-lane urban freeway (3 lanes per direction) is on rolling terrain with 10-ft lanes,obstructions 5 ft from the right edge of the traveled pavement and 8 ramps within 3 milesupstream and 3 miles downstream of the midpoints of the analysis segment. A directionalweekday peak-hour volume of 2800 vehicles is observed with 760 vehicles arriving in themost congested 15-min period. The traffic stream has 7% single unit trucks and 3%tractor-trailer trucks.a. Determine the density and the LOS.b. If instead of rolling terrain, the freeway segment has an incline of 4.5% for adistance longer than 2 miles, determine the density and LOS.

3. A six-lane urban freeway (3 lanes per direction) is on rolling terrain with 10-ft lanes,obstructions 5 ft from the right edge of the traveled pavement and 8 ramps within 3 milesupstream and 3 miles downstream of the midpoints of the analysis segment. A directionalweekday peak-hour volume of 2800 vehicles is observed with 760 vehicles arriving in themost congested 15-min period. The traffic stream has 7% single unit trucks and 3%tractor-trailer trucks.a. Determine the density and the LOS.b. If instead of rolling terrain, the freeway segment has an incline of 4.5% for adistance longer than 2 miles, determine the density and LOS.

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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Transportation Engineering
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