A two-lane highway (one lane in each direction) has a traffic capacity (or saturated flow rate) of 1,600 vehicles/hour/lane. There was an accident happened at 8:00 am on eastbound (EB) and the traffic engineer used the road shoulder to divert traffic and thus the traffic capacity on EB reduced to 800 vehicles/hour/lane. At 8:30 am the accident was removed and the EB traffic was completely restored. Assume the traific arrival flow rate on EB was 1,000 vehicle/hour/lane. a) Draw cumulative vehicles' arrival and departure curves for the scenario described above and find the maximum number of vehicles in the queue during the 30 minutes of accident.
b) What is the maximum a vehicle waits at the incidental location?
c) Total vehicle delay resulting from the incident?