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Title:

NETWORK EQUILIBRATION WITH ELASTIC DEMANDS

Accession Number:

00334197

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/03611981

Abstract:

Elastic-demand equilibration (assignment) is an analytical model for travel forecasting in homogeneous and multimodal transportation networks in which the demand for travel between each origin-destination (O-D) pair is an elastic function of the service level offered by the network. The problem was formulated as a mathematical optimization program in 1956 and, since that time, a variety of iterative schemes have been proposed for its solution. In this paper, the mathematical-programming formulation of the network-assignment problem (NAP) with elastic demands is examined, an economic rationale for its optimization objective is derived, and an efficient method for its solution is presented. The method is based on modeling the NAP as an equivalent-assignment problem in an expanded network. The variable-demand NAP is thus transformed into a fixed-demand NAP that has a trip table that consists of the potential O-D travel demands and can therefore be solved by any fixed-demand assignment procedure available.

Supplemental Notes:

Publication of this paper sponsored by Committee on Passenger Travel Demand Forecasting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

Monograph Accession #:

01411594

Authors:

Gartner, Nathan H

Pagination:

pp 56-61

Publication Date:

1980

Serial:

Transportation Research Record

Issue Number: 775
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

59th Annual Meeting of the Transportation Research Board

Location: Washington District of Columbia, United States
Date: 1980-1-21 to 1980-1-25

ISBN:

0309031192

Media Type:

Print

Features:

Figures (5) ; References (25)

Subject Areas:

Highways; Planning and Forecasting; I72: Traffic and Transport Planning

Files:

TRIS, TRB

Created Date:

Oct 28 1981 12:00AM

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