An Activity-Based Trip Generation Model

Ruey-Min Wang

University of California Transportation Center, Working Papers from University of California Transportation Center

Abstract: The goal of this dissertation is to develop an activity-based trip generation modle which addresses shortcomings of the conventional generation models resulted from a fundamental incapability to address the temporal and spatial characteristics of activities and the trips which they generated. The sequencing and scheduling of trips and activities, and interactions between household members, are ignored in the standard model. The proposed activity-based generation model was developed to estimate trip production from the analysis of complete travel/activity patterns. This approach classifies travel patterns with respect to activity, spacial, and temporal characteristics; standard trip rates can be also estimated from these representative activity patterns. In addition to a standard category prodcution model, a stochastic logic-based pattern choice model and a deterministic discriminant analysis model were developed to stimulate activity pattern choice and the associated trip production level. A variety of variables describing the socioeconomic and demographic attributes at the household or person level comprise the utility functions for choice production. Temporal stability of activity patterns were evident in similar life cycle groups in the 1985 and 1994 Portland test data, supporting the conclusions that patterns are a viable structure on which to base future forecasts.

Keywords: Architecture (search for similar items in EconPapers)
Date: 1997-01-01
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