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 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.
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.
Two sets of students are collecting traffic data at two sections, xx and yy, of a highway 1,200 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 55, 50, 45, 40, and 35 mi/h, respectively, determine the space mean speed (in km/h) for the data using the following equation where
ut
and
us
are in km/h. (Round your answer to at least three significant figures.)
ut = 0.966us + (3.541 km/h)
km/h
Determine the space mean speed (in km/h) for the data using the following equation. (Round your answer to at least three significant figures.)
us =
n
n
1
ui
i=1
km/h
Compare your answers and discuss the results.
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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Similar questions
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