Fundamentals of Construction Estimating
4th Edition
ISBN: 9781337670999
Author: David Pratt
Publisher: Cengage Learning US
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Question
Chapter 3, Problem 15RQ
To determine
The volume of Prism for given dimensions.
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Question 3 (15pt) A traffic signal control is being designed for a four-leg intersection on a
divided highway with the characteristics show in the table below. Determine an appropriate
length of the yellow interval for each approach. (assuming the average vehicle length is 20ft,
and the perception-reaction time is 1.0 sec, and deceleration rate of 11.2ft/sec²)
Median width (ft)
Number of 12ft lanes on
each approach
Design speed (mph)
Grade
North South approaches East West Approaches
18
3
45
0
10
2
35
3.5
SPEED
LIMIT
45
18ft
SPEED
LIMIT
45
5
Chapter 3 Solutions
Fundamentals of Construction Estimating
Ch. 3 - What is the objective of a quantity takeoff?Ch. 3 - Why is it recommended that estimators follow a...Ch. 3 - What is the difference between an estimator’s...Ch. 3 - Prob. 4RQCh. 3 - What are the two components that make up a takeoff...Ch. 3 - In what order are dimensions entered onto the...Ch. 3 - Why should a figured dimension be used in...Ch. 3 - Why should an estimator include headings and side...Ch. 3 - The cost of transportation of materials has to be...Ch. 3 - What level of accuracy should the estimator pursue...
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