Use of advanced analysis tools to support freeway corridor freight planning.
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2010-07-22
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Abstract:Advanced corridor freight management and pricing strategies are increasingly being chosen to
address freight mobility challenges. As a result, evaluation tools are needed to assess the benefits
of these strategies as compared to other alternatives. The goal of this project is to investigate
methods and tools that can be used to assess combinations of such improvement strategies as part
of the corridor freight planning process.
The assessment environment developed in this project utilizes a dynamic traffic assignment
(DTA)/mesoscopic traffic simulation tool that is integrated with the Florida statewide traffic
demand forecasting model (FLSWM). The developed environment includes utilities to convert
the FLSWM network and demand files to DTA tool inputs. A method is used to estimate the
time-variant (short-time interval) demand matrices required as inputs to the DTA tool. Both
conventional traffic detector data and data obtained from Intelligent Transportation Systems
(ITS) detectors are imported to the developed environment. The imported data is used to support
the calibration of the traffic flow model of the DTA tool and to estimate the time variant demand
matrices. The study demonstrates the use of the developed environment in assessing two
advanced corridor freight management strategies: advanced traveler information systems and
truck/toll lanes.
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