Author: Peter PilkoPublisher:
ISBN:
Category : Traffic estimation
Languages : en
Pages : 264
Book Description
How Uncertainty in Trip Generation Rate Propagates in the Travel Demand Model
Author: Peter PilkoPublisher:
ISBN:
Category : Traffic estimation
Languages : en
Pages : 264
Book Description
The Propagation of Uncertainty Through Travel Demand Models
Author: Yong ZhaoPublisher:
ISBN:
Category : Traffic estimation
Languages : en
Pages : 52
Book Description
The future operations of transportation systems involve enormous uncertainty - in both input and model parameters. This work investigates the stability of contemporary transport demand model output by quantifying variability in model input, such as zonal socioeconomic data and trip generation rates. It simulates the propagation of their variation through a series of common demand models over a simplified twenty-five-zone network. The results suggest that uncertainty may be compounded over a series of models and highly correlated across output. The propagated uncertainty varies remarkably in link flows, thus, some link flows may be more uncertain than others. The final step model, trip assignment, may reduce prior increased uncertainty through the first three steps, but generally could not lessen the uncertainty lower than the input uncertainty. Mispredictions at early stages (e.g., trip generation) in multi-stage models appear to amplify across later stages; thus, improvements to these models and their estimates are sorely needed.
Travel Demand Forecasting: Parameters and Techniques
Author: Publisher: Transportation Research Board
ISBN: 0309214009
Category : Traffic estimation
Languages : en
Pages : 170
Book Description
TRB’s National Cooperative Highway Research Program (NCHRP) Report 716: Travel Demand Forecasting: Parameters and Techniques provides guidelines on travel demand forecasting procedures and their application for helping to solve common transportation problems.
Input, Parameter, and Spatial Uncertainty in a Fully Integrated Land Use and Transportation Model
Author: Michael James ClayEvaluation of Travel Demand Management Strategies in the Trip Generation Phase of a Network-based Modeling Approach
Author: Brett Patrick WallacePublisher:
ISBN:
Category : Transportation
Languages : en
Pages : 152
Book Description
Stability of Trip Generation Rates Over Time and Over Space
Author: Daniel K. BoylePublisher:
ISBN:
Category : Trip generation
Languages : en
Pages : 24
Book Description
Uncertainty in Integrated Land Use-transport Models
Author: Sriram KrishnamurthyPublisher:
ISBN:
Category : Choice of transportation
Languages : en
Pages : 38
Book Description
Guidelines for Trip Generation Analysis
Author: United States. Bureau of Public RoadsPublisher:
ISBN:
Category : Origin and destination traffic surveys
Languages : en
Pages : 134
Book Description
Travel demand model update
Author: A Disaggregate Travel Demand Model
Author: Martin Gomm RichardsPublisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 180
Book Description