01372951

Component

Using Hägerstrand’s original framework of time geography and subsequent time-space prism computational methods form the foundation of a new computational method for potential path areas (PPA) in a real environment. In this paper time-space prism is used to assess sensitivity of PPA size to different parameters and to build choice sets for regional destination choice models. The authors explain the implication of different parameters to choice set formation in a step-wise manner and illustrate not only the complexity of the idea and the high computational demand but also behavioral realism. In this context, this paper tests the feasibility of using constraint-based time-space prism to find the choice sets for a large-scale destination choice model, and identifies a variety of implementation issues. Computational demand is estimated based on a household travel survey for the Southern California Association of Government, and the feasibility of using time-space prism for destination choice models is assessed with different levels of information on the network and destinations available. The implications of time of day effects and flexibility in scheduling on choice set building due to time-of-day varying level of service on the network and availability of activity opportunities are discussed and numerically assessed.

This paper was sponsored by TRB committee ADB40 Transportation Demand Forecasting

01362476

12-2707

English

21p

2012

Transportation Research Board 91st Annual Meeting

Digital/other

Figures; Maps; References; Tables

Choice models; Origin and destination; Periods of the day; Scheduling; Urban areas

Southern California Association of Governments

Household travel surveys; Time-space prisms

Planning and Forecasting; Transportation (General); I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2012 Paper #12-2707

TRIS, TRB

Feb 8 2012 5:11PM