FREIGHT MODELING TECHNIQUES FOR SMALL AND MEDIUM-SIZED AREAS
This paper presents a practical and low cost modeling technique to include freight demand and truck movements in the development of long range transportation plans. The Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) and the new Transportation Equity Act for the 21st Century (TEA 21) requires that States and Metropolitan Planning Organizations (MPOs) consider urban freight in their long-range plans, transportation improvement programs, and annual work elements. However, in the last rounds of MPO long-range plan update certification reviews by the Federal Highway Administration (FHWA), one of the negative themes was the lack of freight and goods movement analysis within the current plans. This lack of analysis has occurred because most States and MPOs have little experience in freight planning, current and historical data on truck movements are limited, and most of the old freight models are extremely complicated. In September 1996 the U.S., Department of Transportation released the final report on the Quick Response Freight Manual through the Travel Mode Improvement Program. This manual provides the transportation modeler with simple techniques and transferable parameters which can be used to develop commercial truck movements within a conventional four-step planning model. This paper combines the techniques presented in the Quick Response Freight Manual and a simple four-step TranPlan travel demand model to develop, assign and analyze commercial truck trips in a small to medium urban area. Using the simple techniques and transferable parameters, the model could be developed with a limited amount of actual truck data. In this model, truck trips are broken into three types: four-tire; single unit; and, combination. By keeping the truck trips and auto driver trips in separate purposes, the modeler can preassign or assign the truck trips (all, four-tire, single unit, and combination) to a regular network or special truck network under a full equilibrium process.
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Supplemental Notes:
- Conference proceedings available only on CD-ROM.
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Corporate Authors:
Washington State Department of Transportation
Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
Olympia, WA United States 98504-7300 -
Authors:
- Faris, J M
- Ismart, D
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Conference:
- Sixth National Conference on Transportation Planning for Small and Medium-Sized Communities
- Location: Spokane Washington, United States
- Date: 1998-9-16 to 1998-9-18
- Publication Date: 1999
Language
- English
Media Info
- Pagination: 8p
- Monograph Title: SIXTH NATIONAL CONFERENCE ON TRANSPORTATION PLANNING FOR SMALL AND MEDIUM SIZED COMMUNITIES, SEPTEMBER 16-18, 1998, SPOKANE, WASHINGTON
Subject/Index Terms
- TRT Terms: Analysis; Commercial vehicles; Demand; Freight traffic; Freight transportation; Long range planning; Medium sized cities; Small cities; Transportation planning; Travel; Trucks; Urban areas
- Identifier Terms: Travel Model Improvement Program
- Uncontrolled Terms: Freight modeling; Low cost
- Subject Areas: Freight Transportation; Highways; Motor Carriers; Planning and Forecasting; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 00780082
- Record Type: Publication
- Files: NTL, TRIS, STATEDOT
- Created Date: Dec 2 1999 12:00AM