In: Civil Engineering
1.) Vehicles arrive at an entrance to a recreational
park. There is a single gate (at which
all vehicles must stop), where a park attendant distributes a free
brochure. The park
opens at 08:00 am, at which time vehicles begin to arrive at a rate
of 480 veh/hr. after
20 minutes the arrival flow rate declines at 120 veh/hr, and it
continues at that level
for the remainder of the day. If the time required to distribute
the brochure is 15
seconds and assuming D/D/1 queue,
a. Determine the maximum length of queue that occurred.
b. How long did it take to dissipate the queue?
c. What is the average delay per vehicle?
Show all necessary solutions and diagram
2.) Consider the entrance to the recreational park
described in the previous question.
However, assuming that the average arrival rate is 180 veh/hr and
Poisson-distributed
(negative exponential times between arrivals) over the entire
period from park opening
time, 08:00 am until closing at dusk. Compute
a. The average length of queue
b. Average waiting time in the queue
c. Average time spent in the system
PLEASE ANSWER ALL QUESTION