Traffic And Highway Engineering
5th Edition
ISBN: 9781133605157
Author: Garber, Nicholas J., Hoel, Lester A.
Publisher: Cengage Learning,
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Chapter 2, Problem 1P
To determine
The change without the availability of principal mode of transportation considering personal transportation as well as goods and services.
Expert Solution & Answer
Explanation of Solution
The principal modes of transportation are,
- Road transportation
- Rail transportation
- Air transportation
If the principal modes of transportation are not available, then life becomes very tough as everyone is dependent on it. Our day to day life and activities are dependent on transportation, and it will be largely affected without it.
To reach from one place to another like school, office, shopping and covering large distances will become difficult. Unavailability of transportation will influence the livelihood of people and force an individual to stay at one place.
Goods and services will also be disturbed due to lack of transportation. Goods produced at one place needs be transported to another to earn money by selling them. Customers of these goods and services will also be deprived of these good and services due to lack of transportation.
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Students have asked these similar questions
Part 3: Problem-Solving. Solve the following problems. Show all calculations.
1. A retaining wall 5.80m high supports soil that has the following properties:
Unit weight = 17.3 kN/m³
Angle of internal friction = 26 deg.
Cohesion = 14.5 kPa
a) Calculate the normal pressure acting at the back of the wall assuming no tensile crack
occurs in the soil.
b) Find the location of the tensile crack measured from the surface of horizontal backfill.
c) Determine the active pressure acting on the wall in tensile crack occurs in the soil.
2. The soil material is supported by a retaining wall to a height of 6m. The unit weight of the soil is
16 kN/m³ and the angle of internal friction is 29 deg. Assume the soil is cohesionless.
a) Determine the earth pressure on the wall.
b) Find the total active pressure if surcharge of 14 kPa is applied on the surface of
horizontal backfill.
c) Locate the position of the total pressure from the bottom.
Question 3 (20 points): The traffic volume on a 2-lane highway is 1600 veh/hr in each direction
Page 3 of 6
with a density of 20 veh/mi. A large dump truck enters the traffic stream from an adjacent
construction site at 20 mph and carries on this way for 2 miles before turning off to the dump
site. Because flow is so high in the opposite direction, no one can pass the truck. As a result,
traffic back up behind the truck at four times the density (i.e., 4x20 = 80 veh/mi) at a volume of
1000 veh/hr. How many vehicles get caught in the traffic congestion before the truck exits the
highway?
How can construction project managers find a balance between speeding up schedules and the risks of making more mistakes and needing rework, especially when using methods like fast tracking?
Chapter 2 Solutions
Traffic And Highway Engineering
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