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 17P
To determine
(a)
The volume in southward and northward direction at the given section of the highway using moving-vehicle technique.
To determine
(b)
The travel time in southward and northward direction at the given section of the highway using moving-vehicle technique.
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4-14
Table 4.10 shows data obtained in a travel time study on a section of highway using the
moving-vehicle technique. Estimate (a) the travel time and (b) the volume in each
direction at this section of the highway.
Chapter 4
Traffic Engineering Studies
149
Table 4.10
Travel Time Data for Problem 4-14
No. of
No. of
No. of
Vehicles
Vehicles
That
Vehicles
Run
Travel
Traveling in
Орposite
Overtook
Overtaken
by Test
Vehicle
Direction/
Time
Test
Number
(min)
Direction
Vehicle
Northward
5.25
100
2
2
2
5.08
105
2
1
3
5.30
103
3
1
4
5.15
110
1
5.00
101
6.
5.51
98
7
5.38
97
1
1
8
5.41
112
2
3
5.12
109
3
1
10
5.31
107
Southward
1
4.95
85
1
2
4.85
88
1
3
5.00
95
1
4
4.91
100
2
1
4.63
102
1
5.11
90
1
1
7
4.83
95
8
4.91
96
3
1
9
4.95
98
1
2
10
4.83
90
1
the following data were taken on five vehicles travelling consecutively 1.5km portion of the NLEX.
Vehicle Time(minute)
1
1.2
2
1.0
3
1.4
4
1.3
5
1.1
Determine the density of traffic in (Veh per km)
3.33
3.83
4.33
2.83
road construction
The 20-year projection of annual average daily traffic of a two-way roadway is 36.500 vehicles. Theroad serves as a highway between a residential area and a business area and the expected directionaldistribution factor is D=0.6. The 30th peak hour factor for the roadway is K=0.15. During an hourly vehiclecount, the following values were registered: 1st 15 minutes: 200 cars, 2nd 15 minutes: 130 cars, 3rd 15minute 230 cars, 4th 15 minutes. 180 cars. Estimate the peak hour factor . What is the designdirectional hourly volume for this route?
Chapter 4 Solutions
Traffic And Highway Engineering
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