Title

A COMBINED TRIP DISTRIBUTION AND ASSIGNMENT MODEL FOR MULTIPLE USER CLASSES

Document Type

Journal Article

Publication Date

1992

Subject Area

place - urban

Keywords

Urban transportation, Trip distribution models, Trip distribution, Travel time, Programming (Mathematics), Origin and destination, Optimization theory, O&D, Multimodal transportation, Multimodal systems, Mathematical programming, Journey time, Intracity transportation

Abstract

This paper presents a combined trip distribution and assignment model with multiple user classes, in which the trip productions at origins and trip attractions at destinations for each mode are available. In this model, the entropy-type (or gravity-type) trip distribution submodel is incorporated with the user equilibrium assignment problem for multiclass-user transportation networks. The original unsymmetrical link cost functions can be converted to symmetric forms by a 'normalization' procedure, and hence an equivalent convex mathematical programming model is formulated. Two different algorithms based on the Frank-Wolfe's and Evans', respectively are developed and their computational results on test networks in which the link travel time is similar for all traffic.

Comments

Transportation Research Part B Home Page: http://www.sciencedirect.com/science/journal/01912615