Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 6, Problem 3P
To determine
(a)
A schematic diagram is to be drawn showing the locations of the vehicles 20 sec after the first vehicle passed section XX and the time mean speed.
To determine
(b)
Space mean speed.
To determine
(c)
Density on the highway.
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Two sets of students are collecting traffic data at two sections, xx and yy, of a highway
1500 ft apart. Observations at xx show that five vehicles passed that section at inter-
vals of 3, 4, 3, and 5 sec, respectively. If the speeds of the vehicles were 50, 45, 40, 35,
and 30 mi/h, respectively, draw a schematic showing the locations of the vehicles
20 sec after the first vehicle passed section xx. Also determine (a) the time mean
speed, (b) the space mean speed, and (c) the density on the highway.
6-3
3. Two sets of students are collecting traffic data at two sections, xx and yy, of a highway 1500 ft apart. Observations at xx
show that five vehicles passed that section at intervals of 3, 4, 3, and 5 sec, respectively. If the speeds of the vehicles were
50, 45, 40, 35, and 30 mi/h, respectively, draw a schematic showing the locations of the vehicles 20 sec after the first
vehicles passed section xx. Also, determine (a) the time mean speed, (b) the space mean speed, and (c) the density on the
highway.
Ans. TMS = 40 mi/h, SMS = 38.7 mi/h, k = 31.0 veh/mi
Two sets of students are collecting traffic data at two sections, xx and yy, of a highway 500 metre apart. Observations at xx show that five vehicles passed that section at intervals of 3, 4, 3, and 5 secs, respectively. If the speeds of the vehicles were 50, 45, 40, 35, and 30 km/hr., respectively, draw a schematic showing the locations of the vehicles 20 sec after the first vehicle passed section xx. Also determine (a) the time mean speed, (b) the space mean speed, and (c) the density on the highway.
Chapter 6 Solutions
Traffic and Highway Engineering
Ch. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10P
Ch. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - The arrival times of vehicles at the ticket gate...Ch. 6 - Prob. 27P
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