Consider a highway with four lanes in one direction. What is the typical capacity of this highway? Assume the analysis is only performed for one direction. The morning peak period demand begins with 7000 veh/hr in the first hour and reduces to 5000 veh/hr after the first hour. Is the highway operating below, at, or above capacity? In the event of an incident, one of the four lanes is blocked during the first hour (only three lanes available in the first hour), what is the capacity of the highway in the first hour (as a result of the incident)? With the incident, is the highway operating below, at, or above capacity? Due to the incident, what is the maximum excess accumulation (if there is any)? If congested condition (demand > capacity) exists, what is the duration of queue