At the exit of a toll gate with a single booth, vehicles arrive at random at a rate of 20 vehicles per minute. The service has an average rate of 22 vehicles per minute. However, due to variable toll fees, the service is also random with an average rate of 22 vehicles per minute. Estimate average length of queue formed at the toll gate Group of answer choices 7.09 8.09 9.09 6.09

Vehicles arrive at the carpark of an airport. Vehicles have to queue at the single entrance gate of the carpark at 9:00 AM. The arrival rate is constant at 240 veh/hr. However, between 9:00 and 9:40 AM, the parking ticket machine at the entrance works slowly due to a malfunction, and consequently, each vehicle spends 30 seconds to take the parking ticket. After 9:40 AM, the problem is solved and vehicles spend only 10 seconds at the gate to take the ticket. In how many minutes does the queue dissipate? Select one: a. 60 b. 70 c. 75 d. 80

HIKI TO D OSHITENOJ ON DE No. Date 3 A parking facility operates from 8 a.m. to 6p.m, whereby 20% of those who wish to park are turned back daily because of lack of space. A total of 200. vehicles are able to park daily of which 60% park for an average parking duration of 9 hours and the remaining park For an average parking duration of 2 hours. From a survey of the vehicles who are not able to park daily it is known that 20% of these vehicles desire to park for 9 hours and the For 2 hours. remaining desire to Park If the parking efficiency is 0.9, determine: Li) the number of additional space hours required? (ii) the additional number of parking bays required in order to meet excess demand?