PRIN.OF HIGHWAY ENGINEERING&TRAFFIC ANA.
7th Edition
ISBN: 9781119610526
Author: Mannering
Publisher: WILEY
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Chapter 7, Problem 10P
To determine
The revised effective green time, yellow time and all red time for each stage.
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The average normal flow 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 1200 and 1000 pcu per hour
respectively. The all-red time required for
pedestrian crossing is 12secs. Calculate cycle time
for two phase signal system.
4. Vehicle time headway is 3.5 sec/vehicle and spacing of cars
measured at a point along the NLEX, from a single lane of 70
m/vehicle, over the course of an hour. Compute for the traffic density,
space mean speed, and the average speed of the traffic.
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
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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