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Establishment of Local Trip Generation Rates or Equations for Mixed-Use Developments in Kansas
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2012-10-01
[PDF-5.32 MB]
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Edition:Final report; Aug. 2010¿Aug. 2012.
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Abstract:Currently, the trip generation rates and equations contained in the Institute of Transportation Engineers (ITE)
Trip Generation Manual, 8th Edition are based on the information collected at single-use, free-standing sites and cannot
be directly applied to multi-use developments. Application of this data for multi-use development sites requires use of
an adjustment factor called “internal capture rate”, which is expressed as a percent reduction to the trips generated by
individual land uses. These reductions are applied externally to the site at the entrances, adjacent intersections and
roadways. They are distinct and separate from “pass-by” and “diverted-link” trips and are applied before “pass-by” and
“diverted-link” trip reductions are applied.
While the trip generation rates for individual uses on a multi-use development site may be the same or similar
to what they are for free-standing sites, there is potential for interaction between among those uses within the site,
particularly where the trip can be made by walking. As a result, the total generation of vehicle trips entering and
exiting the multi-use site may be reduced from simply a sum of the individual, discrete trips generated by each land
use.
Because the development of mixed-use or multi-use sites is increasingly popular, ITE wishes to increase the
database on multi-use developments in order to provide internal capture data for a broader range of land uses. ITE
would appreciate additional data from analyses of such developments.
The goal of this research project is to establish a local trip generation rate model for multi-use developments in
state of Kansas, which can potentially be submitted to the ITE headquarter for inclusion in the national database as
well.
The primary objectives were to identify several appropriate multi-use development sites in the state and
document vehicular trip data generated by each site in order to develop a trip generation model that can be used to
better estimate trip numbers generated by such sites.
A total of three sites were selected and studied for this project including “Mission Farms” and “Park Place”
developments, both in Leawood, Kansas; and “Metcalf95 Complex” in Overland Park, Kansas.
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