Vehicles begin to arrive at a stadium parking lot’s entrance at 8: 50 a. m. with a constant arrival rate of 12 veh/ minute. at 9: 05 a. m., the arrival rate changed to 8 veh/minute. the parking lot opened at 9: 00 a. m. and let vehicles enter at a constant rate of 15 veh/minute. assume d/d/1 queuing. when did the queue dissipate? what was the maximum queue length? when did this happened? which vehicle had the maximum delay at the entrance, and how much?