Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 2, Problem 6P
To determine
(a)
The mode to be selected by the shipper.
To determine
(b)
The other factors the shipper should take into account in making a decision.
Expert Solution & Answer
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Students have asked these similar questions
An individual is planning to take an 800-mile trip
between two large cities. Three possibilities exist: air,
rail, or auto. The person is willing to pay $25 for every
hour saved in making the trip. The trip by air costs
$650 and travel time is 10 hours, by rail the cost is
$450 and travel time is 15 hours, and by auto the cost
is $250 and travel time is 20 hours.
Which mode is the best choice?
a curious traveler asked this question on stack exchange:
a flight from los angeles to albuquerque is about 2 hours but is approximately equal to 670.2miles. a flight from san jose to chicago is 4 hours but is approximately equal to 1859.0 miles. can anyone explain why the travel time from san jose to chicago is not longer and closer to 5.75 hours? if the distance increase by 2, shouldn't the time increase by a factor of 2 as well?
a) write a linear model for this question. takeoff and landing will take a fixed amount of time. actual travel in the air will take time proportional to the distance traveled. identify the slope and intercept with their units.
b) use the data in the quotation to estimate the two constants in your linear model.
The city public transportation
authority manages and maintains the regular bus service. If
the origin-destination (OD) trips are 10,000 person-trips per
day,
a) If private auto and regular bus are two irrelevant travel
modes, use binary logit model to determine the fare-box
revenue of the regular buses given the following utility
function.
uk = ak — 0.003 X₁ – 0.04 X₂
1
where: X₁ is travel cost in cents, X₂ is travel time in minutes
ak, modal constant X, (in cents) X₂ (in minutes)
-0.20
120
30
Auto (A)
Regular Bus (B)
-0.60
30
55
Chapter 2 Solutions
Traffic and Highway Engineering
Knowledge Booster
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