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MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
5th Edition
ISBN: 9781305581159
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Question
Chapter 4, Problem 20P
To determine
The turnover, duration, capacity, peak demand & its time of occurrence and occupancy of the parking lot and the parking accumulation curve.
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Data collected at a parking lot indicate that a total of 300 cars park between 8 a.m. and 5 p.m. 5% of these cars are parked for an average of 2 hr, 20% for an average of 3 hr, 10% for an average of 4 hr, and the remaining cars are parked for an average of 9 hr. (a) Determine the space-hours of demand at the lot. (b) If 10% of the parking bays are vacant on average (between 8 a.m. and 5 p.m.) at the parking lot, determine the number of parking bays in the parking lot. Assume an efficiency factor of 0.90. (c) The owner of the parking lot is planning an expansion of her lot to provide adequate demand for the following 10 years. If she has estimated that parking demand for all categories will increase by 3% a year, determine the number of additional parking bays that will be required.
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Vehicles begin to arrive at a toll booth at 5 vehicles per minute from 7 AM to 8 AM. The booth opens at 7:15 AM and services at a rate of 3 vehicles per minute until 7:45 AM. From 7:45 AM until 8 AM the service rate is 6 vehicles per minute. Assuming D/D/1 queuing,
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Chapter 4 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
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- TASK 1: Question 1 From an in-out survey conducted for a parking area consisting of 150 bays, the initial count was found to be XY. The table below gives the results of the survey. The number of vehicles coming in and out of the parking lot for a time interval of 5 minutes is shown in the table. Find the accumulation, total parking load, average occupancy and efficiency of the parking lot. Note: XY= 100- last two digits of your student number. For example, if your student number is 190786, then XY= 100-86= 14. Time In 05 10 15 20 25 30 35 40 45 50 55 60 40 44 14 30 16 20 Out 36 22 15 19 28 14 18 14 18 30 28 15 12 22 21 19 20 25arrow_forward8. In a volume study of a street in Kasoa, the following data was collected on a Sunday. The data was collected for a 24 hour period at hourly intervals as shown in the table below. Knowing that the traffic volume for this week is 10,000 vehicles/week (a) Calculate the hourly expansion factor (HEF) (b) Calculate the Daily expansion factor (DEF) for Sunday (c) Find the peak hour and peak hour volume (d) Calculate the maximum 15-min flow rate, If PHF=0.82 Time No. of Veh HEF Time No. of Veh HEF 12:00-01:00 am 105 01:00-02:00 am | 110 02:00-03:00 am 95 03:00-04:00 am 90 04:00-05:00 am 75 05:00-06:00 am 75 06:00-07:00 am 80 07:00-08:00 am 70 08:00-09:00 am 60 12:00-01:00 am 10 01:00-02:00 am 02:00-03:00 am 03:00-04:00 am 04:00-05:00 am 8 5 7 15 25 05:00-06:00 am 06:00-07:00 am 07:00-08:00 am 08:00-09:00 am 09:00-10:00 am 10:00-11:00 am 40 110 130 90 09:00-10:00 am 40 10:00-11:00 am 30 11:00-12:00 pm | 25 95 11:00-12:00 pm 110arrow_forwardScheduled maintenance will close two of the four westbound lanes of a freeway during one weekday for the period from 9:00 AM to 4:00 PM. The demand on the two lanes are as follows: Time Demand, vph 9:00-10:00 AM 4000 10:00-11:00 AM 3500 11:00-12:00 NN 2500 12:00-1:00 PM 2000 1:00-2:00 PM 2000 2:00-3:00 PM 2000 3:00-4:00 PM 2000 If the estimated capacity of the 4 lanes with 2 lanes open is 2960 vph, a. compute the time when maximum queue occurs. 11:00 AM b. compute the maximum queue formed. 1580 vehicles c. compute the maximum length of queue if the average length of cars is equal to 5 meters. 1975 m Show all necessary diagrams and solutions.arrow_forward
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