United States Department of Transportation
i
Use of Dynamic Traffic Assignment in FSUTMS in Support of Transportation Planning in Florida [Summary]
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2012-01-01
[PDF-384.72 KB]
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Edition:Summary.
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Abstract:Transportation planning is based on the physical
structure of roadway networks and, less
tangibly, on choices individuals make about their
transportation needs and use of the roads. For a
task this complex, computer modeling is essential.
In Florida, transportation planning often uses
the Florida Standard Urban Transportation Model
Structure (FSUTMS) to provide a consistency of
data and approach. Currently, demand forecasting
in FSUTMS uses static traffic assignment, in which
properties of transportation networks, such as
travel times and flow rates, are constant over
time and drivers are described homogeneously.
Dynamic traffic assignment (DTA) could greatly
advance FSUTMS by allowing scenarios in which
transportation measures vary with time and
drivers are treated as individuals, permitting new
levels of detail and precision, thus supporting
better demand and performance forecasting.
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