An incident occurs on a freeway that has a capacity in the northbound direction, before the incident, of 4000 veh/h and a constant flow of 2900 veh/h during the morning commute (no adjustments to traffic flow result from the incident). At 8:00 A.M. a traffic accident closes the freeway to all traffic. At 8:12 A.M. the freeway is partially opened with a capacity of 2000 veh/h. Finally, the wreckage is removed, and the freeway is restored to full capacity (4000 veh/h) at 8:31 A.M.
An incident occurs on a freeway that has a capacity in the northbound direction, before the incident, of 4000 veh/h and a constant flow of 2900 veh/h during the morning commute (no adjustments to traffic flow result from the incident). At 8:00 A.M. a traffic accident closes the freeway to all traffic. At 8:12 A.M. the freeway is partially opened with a capacity of 2000 veh/h. Finally, the wreckage is removed, and the freeway is restored to full capacity (4000 veh/h) at 8:31 A.M.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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An incident occurs on a freeway that has a capacity in the northbound direction, before the
incident, of 4000 veh/h and a constant flow of 2900 veh/h during the morning commute (no
adjustments to traffic flow result from the incident). At 8:00 A.M. a traffic accident closes
the freeway to all traffic. At 8:12 A.M. the freeway is partially opened with a capacity of 2000
veh/h. Finally, the wreckage is removed, and the freeway is restored to full capacity (4000
veh/h) at 8:31 A.M. Assume D/D/1 queuing to determine time of queue dissipation, longest
queue length, total delay, average delay per vehicle, and longest wait of any vehicle
(assuming FIFO)
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