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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: 9781305577398
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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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.
Expert Solution & Answer
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Students have asked these similar questions
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
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.
Question 2: Traffic data has been collected by students at two sections, xx and yy, of a high way
500 m apart. Observations at xx show that six vehicles passed that section at intervals of 10, 6,
7, 7, and 5 seconds, respectively. If the speeds of the vehicles were found to be 50, 45, 45, 40, 35,
and 40 km/h, respectively.
Y
500 m
Y
1. Draw a schematic showing the locations of the vehicles 36 s after the first vehicle passed
section xx.
2. Determine the time mean speed.
3. Determine the space mean speed
4. Estimate the rate of flow on the highway
Chapter 6 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
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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