A segment of rural freeway is being designed for a FFS of 65 mph using 11 ft lanes in a mountainous area. The lateral clearance is nominal (1 ft). The directional (i.e. one-way) design flow rate is expected to be 2,400 passenger cars per hour. How many lanes in one direction will be needed to provide at least a LOS B? Response When FFS=65 mph and flow rate=2400 pcphpl the density=36.9 pcpmpl which translates to a LOS E. When FFS=65 Feedback: mph and flow rate=1200 pcphpl the density=18.5 pcpmpl which translates to LOS C. When FFS=65 mph and flow rate=800 pcphpl the density=12.3 pcpmpl which translates to LOS B.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A segment of rural freeway is being designed for a FFS of 65 mph using 11 ft lanes in a mountainous area. The lateral clearance is
nominal (1 ft). The directional (i.e. one-way) design flow rate is expected to be 2,400 passenger cars per hour. How many lanes in one
direction will be needed to provide at least a LOS B?
Response
Feedback:
When FFS=65 mph and flow rate=2400 pcphpl the density=36.9 pcpmpl which translates to a LOS E. When FFS=65
mph and flow rate=1200 pcphpl the density=18.5 pcpmpl which translates to LOS C. When FFS-65 mph and flow
rate=800 pcphpl the density=12.3 pcpmpl which translates to LOS B.
Transcribed Image Text:A segment of rural freeway is being designed for a FFS of 65 mph using 11 ft lanes in a mountainous area. The lateral clearance is nominal (1 ft). The directional (i.e. one-way) design flow rate is expected to be 2,400 passenger cars per hour. How many lanes in one direction will be needed to provide at least a LOS B? Response Feedback: When FFS=65 mph and flow rate=2400 pcphpl the density=36.9 pcpmpl which translates to a LOS E. When FFS=65 mph and flow rate=1200 pcphpl the density=18.5 pcpmpl which translates to LOS C. When FFS-65 mph and flow rate=800 pcphpl the density=12.3 pcpmpl which translates to LOS B.
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