16 - Chapter8-Trip Generation

16 - Chapter8-Trip Generation - Travel Demand and Trip...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Travel Demand and Trip Generation TTE 4004 11/9/11 Travel Demand Forecasting What is travel demand forecasting? Why do we need future travel demand? What might affect future travel demand? Overall regional growth/decline Traffic diversion Specific changes to the region Trip Generation 2 purposes Trips for general future conditions Regional growth/decline Network changes Trips for a specific change New construction Retail store, apartment complex, office center, Site Specific Trip Generation ITE Trip Generation Handbook What would generate the most trips? Regional Changes Long-term trend of traffic growth/decline is primarily influenced by economic and social factors Regions with increased business activity will also lead to increases in shopping centers and residential communities Social characteristics of a particular population will influence attitudes toward alternative transportation modes, or even trip-making in general Network Changes Traffic diversion is short-term phenomenon As new facilities are built, or significant operational improvements are made to existing facilities, traffic will divert from more congested routes to now less congested routes, and may also change departure time. Significant changes to any part of the network will result in changes to that part as well as many other parts of the network Thus, the transportation network must be viewed and analyzed as a system Challenges Traffic forecasting is a complex problem, as it requires: Accurate regional economic forecasts Accurate forecasts of roadway users social and behavioral attitudes regarding trip- oriented decisions Both of these are very difficult to do Traveler Decisions Forecasts of traffic volumes should be based upon some understanding of traveler decisions These decisions will ultimately determine the: Quantity Spatial distribution (i.e., route selected) Temporal distribution (i.e., time of day) Traveler Decisions...
View Full Document

Page1 / 26

16 - Chapter8-Trip Generation - Travel Demand and Trip...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online