An eight-lane freeway section is designed to have a lane width of 10 ft, right-side shoulder width is 4 ft, and 5 ramps over a 2-mile-long centerline. What is the free-flow speed for this freeway section? a. 75 mph b. 70 mph c. 65 mph d. 60 mph

An eight-lane freeway section is designed to have a lane width of 10 ft, right-side shoulder width is 4 ft, and 5 ramps over a 2-mile-long centerline. What is the free-flow speed for this freeway section? a. 75 mph b. 70 mph c. 65 mph d. 60 mph

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The 2 southbound lanes of a four-lane (i.e. 2 lanes each direction) urban freeway are 12 ft wide. There is at least 6 ft of lateral clearance on the right side of the outer/right lane. There are two ramps within the influence area (i.e. within 3 miles upstream and 3 miles downstream of the center of the segment. What is the estimated FFS (mph)? Provide the answer to the nearest tenths. Response Feedback: The BFFS of 75.4 mph is reduced by 1.28 mph to account for the presence of ramps.
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The heavy vehicle adjustment factor for a freeway in rolling terrain with 5% heavy trucks is: 1.08 1.13 0.89 0.93 1.00 OOO O