Elementary Surveying (14th Edition)
14th Edition
ISBN: 9780133758887
Author: Charles D. Ghilani, Paul R. Wolf
Publisher: PEARSON
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Question
Chapter 3, Problem 3.10P
To determine
i.
The most probable length.
To determine
ii.
Standard deviation.
To determine
iii.
Mean standard deviation.
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4- As part of a highway interchange project, a ramp will be constructed to allow the vehicles
exit the first highway and enter the second highway. The first highway runs north-south and
the second one had a right angle to the first one (it runs east-west). Vehicles going to the
north can use this exit ramp to enter the second highway as shown in the plan view in the
figure below. The design speed in both highways is 100 km/hr. The stationing of the start of
the horizontal curve is 40+00.
a) Determine the stationing of PI and PT¶
b) The first highway has a vertical grade of +3.5% and the second highway has a grade of -
0.5%. The stationing of the beginning and the end of the crest curve are the same as the
horizontal curve. What is the elevation of the end of the vertical curve (PVT) if the
elevation of the start point (PVC) is 1500m
c) Calculate K for the vertical curve
Plan view (horizontal alignment)
PT
1
N
Profile view (vertical alignment)
G1=0.5%
PVT
PC, 40+00
PVC
G1=+3.5%
10- A pavement with a thin bituminous surface is going to be constructed with a design traffic of
6*105 ESA. Laboratory testing of the subgrade and pavement materials has given the
following CBR values. Design the pavement using the empirical design method. Use the
and show how you got the numbers on the graph
relevant graph}
Subgrade CBR: 5
Granular subbase material:
Upper layer CBR> 30
Lower layer CBR = 10
Granular base material CBR >100
1- Describe the perception-reaction process in driver's decision making. What are the steps this
process consists of and what tasks are included in each step? Why this process should be
considered in transportation planning
3- What are the three main parts that can be included in a road cross section? Briefly describe
what each part is for? Sketch a typical cross section
Chapter 3 Solutions
Elementary Surveying (14th Edition)
Ch. 3 - Discuss the differences between an error and a...Ch. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Prob. 3.4PCh. 3 - Discuss the diffexrence between accuracy and...Ch. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - Prob. 3.25PCh. 3 - Prob. 3.26PCh. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.30P
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