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in the table below. Travel times between zones were also determined. Provide a trip dis- tribution calculation using the gravity model for two iterations. Assume K₁ = 1.

in the table below. Travel times between zones were also determined. Provide a trip dis- tribution calculation using the gravity model for two iterations. Assume K₁ = 1.

Traffic and Highway Engineering
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter12: Forecasting Travel Demand
Section: Chapter Questions
Problem 9P
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A small town has been divided into three traffic zones. An origin-destination survey was conducted earlier this year and yielded the number of trips between each zone as shown in the table below. Travel times between zones were also determined. Provide a trip dis- tribution calculation using the gravity model for two iterations. Assume K = 1. The following table shows the number of productions and attractions in each zone. Zone 2 Total Productions 250 450 300 1000 Attractions 395 180 425 1000 The survey's results for the zones' travel time in minutes were as follows. Zone 3 1 6. 4 2 8. 1 The following table shows travel time versus friction factor. Time (min) 2 3 4 5 Friction Factor 82 52 50 41 39 26 20 13
Transcribed Image Text:A small town has been divided into three traffic zones. An origin-destination survey was conducted earlier this year and yielded the number of trips between each zone as shown in the table below. Travel times between zones were also determined. Provide a trip dis- tribution calculation using the gravity model for two iterations. Assume K = 1. The following table shows the number of productions and attractions in each zone. Zone 2 Total Productions 250 450 300 1000 Attractions 395 180 425 1000 The survey's results for the zones' travel time in minutes were as follows. Zone 3 1 6. 4 2 8. 1 The following table shows travel time versus friction factor. Time (min) 2 3 4 5 Friction Factor 82 52 50 41 39 26 20 13
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