Anticipating the need for Virginia to comply with the new freight planning requirements mandated by ISTEA and TEA-21, the Virginia Transportation Research Council in 1998 developed a Statewide Intermodal Freight Transportation Planning Methodology, which provided a standard framework for identifying problems and evaluating alternative improvements to Virginia's freight transportation infrastructure. The first step in the methodology was to inventory the system. This study completed that step. In this study, a freight advisory committee, consisting of public and private freight stakeholders was formed. Next, county-level commodity flow data were commercially procured. Using these data, Virginia's 'key' commodities were identified, and the flows of these commodities were assigned to county-level O-D tables. A geographic information system (GIS) database was developed that showed freight flows, county-level population and employment information, and Virginia's freight transportation network. With the use of various statistical analysis techniques, freight generation and attraction relationships were defined, and predictive equations were developed for each of Virginia's key commodities. Future freight flows were predicted, and various models with which to distribute these future flows were evaluated.


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    Methodology for Statewide Intermodal Freight Transportation Planning

    C. J. Eatough / S. C. Brich / M. J. Demetsky | NTIS | 1998


    A Statewide Intermodal Freight Transportation Planning Methodology

    Eatough, C. J. / Brich, S. C. / Demetsky, M. J. et al. | British Library Conference Proceedings | 1998



    Virtual Simulation of Statewide Intermodal Freight Traffic

    Tan, A. / Bowden, R. / Zhang, Y. et al. | British Library Conference Proceedings | 2004


    Virtual Simulation of Statewide Intermodal Freight Traffic

    Tan, Aaron / Bowden, Royce / Zhang, Yunglong | Transportation Research Record | 2004