Traffic And Highway Engineering
5th Edition
ISBN: 9781133605157
Author: Garber, Nicholas J., Hoel, Lester A.
Publisher: Cengage Learning,
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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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PARKING STUDIES
PROB 1. Data collected at a parking lot indicate that a total of
300 cars park between 8 a.m. and 6 p.m. 10% of these cars
are parked for an average of 2 hr, 30% for an average of 4 hr,
and the remaining cars are parked for an average of 10 hr.
Determine the space-hours of demand at the lot
PROB 2. If 10% of the parking bays are vacant on average
(between 8 a.m. and 6 p.m.) at the parking lot of PROB1,
determine the number of parking bays in the parking lot.
Assume an efficiency factor of 0.85
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.
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 25
Chapter 4 Solutions
Traffic And Highway Engineering
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