PRIN.OF HIGHWAY ENGINEERING&TRAFFIC ANA.
7th Edition
ISBN: 9781119610526
Author: Mannering
Publisher: WILEY
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Chapter 7, Problem 52P
To determine
The new level of service for the westbound approach.
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Students have asked these similar questions
For the geometric characteristics, traffic conditions (traffic volumes are in vehicles per hour) and
signal timing shown below, complete parts A through E for the Northbound and Eastbound
approaches.
A. Adjust the volumes.
B. Find the saturation flow rate.
C. Find the degree of saturation.
D. Find the theoretical delay for each movement.
E. Find the theoretical delay and LOS for the EB and NB approaches.
Bus stop
5 stops/hr
$12 ft
teach
6% HV
400
6% HV
650
100
12 ft
each
- Isolated signal with
random arrivals, AT-3
- No residual demand delay
11 ft
each
- No bicycles or pedestrians
Bus stop
5 stops/hr
P
C = 60 sec
Lost time = 3.5 sec/
7550
2% HV
-
G=42
Y=4
G=10; Y=4
G=8
Y=4
G=30
Y=4
Φ1
Φ2
ФЗ
Assume the intersection is located at Central Business District (CBD)
Assume that both the streets are located on level grades, i.e. G = 0
Assume a PHF = 0.95
Assume random arrival i.e. AT-3
Assume that the intersection is isolated and signal is pre-timed
A new freeway ramp meter will be
installed on the Medina onramp to
westbound SR 520. There is 70 ft
from the ramp meter stop line back
to the nearest intersection, and
each stopped vehicle takes up an
average of 20 ft. The desired meter
rate is one vehicle every 10 seconds,
while the arrival rate averages one
vehicle arrival every 11 seconds.
What is the average queue length?
55ft
O 4.5 ft
100ft
90ft
The average normal flow of traffic on
cross roads A and B during design
period are 400 and 250 pcu per hour; the
saturations flow values on these roads
are estimated as 1250 and 1000 pcu per
hour respectively.
The all-red time required for pedestrian
crossing is 12 secs.
Design two phase traffic signal by
Webster's method.
Chapter 7 Solutions
PRIN.OF HIGHWAY ENGINEERING&TRAFFIC ANA.
Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
Ch. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - Prob. 15PCh. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - Prob. 22PCh. 7 - Prob. 23PCh. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - Prob. 28PCh. 7 - Prob. 29PCh. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - Prob. 43PCh. 7 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - Prob. 47PCh. 7 - Prob. 48PCh. 7 - Prob. 49PCh. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Prob. 53PCh. 7 - Prob. 54PCh. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - Prob. 57PCh. 7 - Prob. 58PCh. 7 - Prob. 59PCh. 7 - Prob. 60PCh. 7 - Prob. 61PCh. 7 - Prob. 62P
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