Problem $6$

An incident occurs on a freeway that has a capacity of $3,500ve\frac{h}{h}$ in the northbound direction. The arrival flow rate was $2,500ve\frac{h}{h}$ during the morning commute. At $7$:$30$ AM$,$ a traffic accident occurs which closes the freeway to all traffic. At $7$:$42$ AM$,$ the freeway is partially opened with a capacity of $1,750ve\frac{h}{h}.$ Finally, the wreckage is removed, andthe freeway is restored to full capacity $(3500ve\frac{h}{h})$ at $8$:$01AM.$ Assume D$/$D$/1$ queuing to determine the time of queue dissipation, longest queue length, total delay, the average delay per vehicle, and the longest wait of any vehicle $($assuming FIFO$).$