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A six-lane divided miltilane highway (three lanes in each direction) has a measured FFS of 70 mi/h. It is on rolling terrain with a traffic stream consisting of 17% heavy vehicles. One direction of the highway currently operates at maximum LOS C conditions, and it is known that the highway has PHF = 0.70. How many vehicles can be added to this highway (ignore capacity), assuming the proportion of vehicle types remain

A six-lane divided miltilane highway (three lanes in each direction) has a measured FFS of 70 mi/h. It is on rolling terrain with a traffic stream consisting of 17% heavy vehicles. One direction of the highway currently operates at maximum LOS C conditions, and it is known that the highway has PHF = 0.70. How many vehicles can be added to this highway (ignore capacity), assuming the proportion of vehicle types remain

Structural Analysis
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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A six-lane divided miltilane highway (three lanes in each direction) has a measured FFS of 70 mi/h. It is on rolling terrain with a traffic stream consisting of 17% heavy vehicles. One direction of the highway currently operates at maximum LOS C conditions, and it is known that the highway has PHF = 0.70. How many vehicles can be added to this highway (ignore capacity), assuming the proportion of vehicle types remain the same but the peak-hour factor increases to 0.89. (Note: range +/-3, round to the nearest vehicle)
Transcribed Image Text:A six-lane divided miltilane highway (three lanes in each direction) has a measured FFS of 70 mi/h. It is on rolling terrain with a traffic stream consisting of 17% heavy vehicles. One direction of the highway currently operates at maximum LOS C conditions, and it is known that the highway has PHF = 0.70. How many vehicles can be added to this highway (ignore capacity), assuming the proportion of vehicle types remain the same but the peak-hour factor increases to 0.89. (Note: range +/-3, round to the nearest vehicle)
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