A Framework to Respect Travel Time Budgets as Constraint for Microscopic Destination Choice Modeling
Despite empirical evidence, the most common approaches for destination choice modeling do not account for an overall travel time budget. In fact, if congestion worsens workers will choose different workplaces instantaneously in most state-of-practice models, a highly unrealistic representation of observed work trip destination choice. The objective of this paper is to understand the factors affecting travel time budgets. A model is estimated to calculate travel time budgets, which may be used to improve destination choice modeling.Using survival analysis, individual travel time budgets for every trip purpose were calculated. Households were selected as analysis unit. The results indicate that travel time depends on the number of trips by trip purpose and household sociodemographic. Increasing the number of trips for one purpose reduces the travel time allocated for other trips, confirming the existence of an overall travel time budget. Household size is the most important sociodemographic variable, followed by household income. In fact, the effect on travel time budgets is not linear and tends to stabilize for household sizes higher than 5, verifying the hypothesis that travel time budgets are balanced among the individuals inside a household and households act as a decision unit. Based on the results, the authors propose a framework to consider travel time budgets constraints for non-commute trips for the destination choice model, while the commute time will be given directly by long-term home and workplace locations as defined in a synthetic population. The survival models are integrated with a microscopic travel demand model. Destination choice modeling constrained by travel time budgets adds fidelity to travel demand models.
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Supplemental Notes:
- This paper was sponsored by TRB committee ADB30 Standing Committee on Transportation Network Modeling.
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Corporate Authors:
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Authors:
- Moreno, Ana Tsui
- Moeckel, Rolf
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Conference:
- Transportation Research Board 96th Annual Meeting
- Location: Washington DC, United States
- Date: 2017-1-8 to 2017-1-12
- Date: 2017
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 13p
- Monograph Title: TRB 96th Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Choice models; Microsimulation; Travel demand; Travel time; Trip purpose
- Uncontrolled Terms: Destinations
- Subject Areas: Planning and Forecasting; Transportation (General);
Filing Info
- Accession Number: 01629926
- Record Type: Publication
- Report/Paper Numbers: 17-02401
- Files: TRIS, TRB, ATRI
- Created Date: Mar 27 2017 9:26AM