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Midterm_3_Sol

# Midterm_3_Sol - University of Minnesota CE 3201...

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University of Minnesota Spring 2008 CE 3201 Introduction to Transportation Engineering Dr. Henry Liu 1 Name May 7, 2008 Midterm #3 I. Multiple Choices & Short Questions (4 points for each, total 40 points). 1. Logit model can be derived under the assumption that the random error in the utility function follows: A. Gumbel distribution B. Normal distribution C. None of the above. 2. Gravity model is used to determine: A. Number of trips generated at a traffic analysis zone B. Number of trips traveled from one zone to another C. Number of trips taking a particular mode D. None of the above. 3. An origin-destination pair is connected by two routes, one with a fixed travel time of 10 minutes (regardless of traffic flow), and the other has a linear travel time function t = 2 + x (x is the traffic flow in the unit of 1000 vehicles and t is travel time in minutes). Suppose the total demand for the origin-destination pair is 5000 vehicles, the travel time at equilibrium is: A. 7 minutes, B. 10 minutes, C. None of the above. 4. Trip generation procedure is used to determine: A. Number of trips produced at a traffic analysis zone B. Number of trips attracted to a traffic analysis zone

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Midterm_3_Sol - University of Minnesota CE 3201...

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