Improved modeling of network transportation flows, including land use-transportation interactions : a research collaboration between USC (METRANS) and Caltrans District 7 (Office of Advance Planning).
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2011-06-01
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Edition:Final report.
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Abstract:Caltrans District 7 manages the highway system of Los Angeles and Ventura counties. As part
of their responsibilities, the agency needs to generate planning reports. One such report is the
transportation concept report (TCR). It is route specific and needs to be updated periodically. Data for
these reports are generated using a network and travel demand model. In the past Caltrans used an indeveloped
model. However in response to changing resource availability and the need for better
collaboration with other regional agencies, Caltrans decided to use a model that had been developed by
the Southern California Association of Governments (SCAG). Caltrans found itself struggling to
effectively use the SCAG model. Caltrans had long developed modeling and reporting practices around
its original model. In this research effort, we helped Caltrans by studying their procedures and
recommending possible changes. We also developed a tool which could facilitate the translation of
SCAG’s results to Caltrans’ immediate needs.
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