A six-lane freeway (three lanes in each direction) in a scenic area has a measured free-flow speed of 55 mi/h. The peak-hour factor is 0.80, and there are 8% large trucks and buses and 6% recreational vehicles in the traffic stream. One upgrade is 5% and 0.5 mi long. An analyst has determined that the freeway is operating at capacity on this upgrade during the peak hour. If the peak-hour traffic volume is 3900 vehicles, what value for the driver population factor was used?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A six-lane freeway (three lanes in each direction)
in a scenic area has a measured free-flow speed
of 55 mi/h. The peak-hour factor is 0.80, and there
are 8% large trucks and buses and 6% recreational
vehicles in the traffic stream. One upgrade is 5%
and 0.5 mi long. An analyst has determined that
the freeway is operating at capacity on this
upgrade during the peak hour. If the peak-hour
traffic volume is 3900 vehicles, what value for the
driver population factor was used?
Transcribed Image Text:A six-lane freeway (three lanes in each direction) in a scenic area has a measured free-flow speed of 55 mi/h. The peak-hour factor is 0.80, and there are 8% large trucks and buses and 6% recreational vehicles in the traffic stream. One upgrade is 5% and 0.5 mi long. An analyst has determined that the freeway is operating at capacity on this upgrade during the peak hour. If the peak-hour traffic volume is 3900 vehicles, what value for the driver population factor was used?
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