Year: 2013
Type: conference-paper
Abstract: Gravity models have been widely used in the trip distribution stage of travel demand models over decades.Recent advancements in research suggest that the destination choice model is a preferred trip distribution method rather than the gravity model.In this paper, a comparison of destination choice model and gravity model is presented using a real case study applied within the Maryland Statewide Transportation Model.The gravity model is formulated as a function of travel time and origin-destination's production-attraction ability and the destination choice model is based upon the utility maximization principle.Household Travel Survey data collected in the Baltimore-Washington region is used to estimate and calibrate the parameters of both models.Considering the wide spectrum of diversity in growth pattern in the Baltimore-Washington survey data, the study area is divided into eight regions to reflect region specific travel behavior.From the result, it is found that a destination choice model better replicates the observed trip length and origin-destination matrix for home based work (HBW) trips.In contrast, the gravity model does not succeed in accurately estimating trip attractions when compared to the survey data.The result shows that a destination choice model performs better than a gravity model in this statewide model.This research can be used as a tool to assist in choosing a trip distribution method for travel demand modeling.
Authors: Sabyasachee Mishra, Yanli Wang, Xiaoyu Zhu, Rolf Moeckel, Subrat Mahapatra
Language: English
Subfield: Transportation
Field: Social Sciences
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W626368545