United States Department of Transportation
i
Regional warehouse trip production analysis : Chicago metro area, September, 2008.
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2008-10-01
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Abstract:This research report provides primary research data and analysis on heavy truck trip generation and characteristics from regional
distribution centers (RDC) and similar facilities in an effort to facilitate future public policy making regarding roadway transportation needs
as well as land-use and economic development decisions. The report also provides secondary data and information on intermodal freight
transportation - its growth and its economic impacts – to provide a regional, national, and international context for the research.
The primary data was obtained from a field survey of 12 distribution centers of various scales (7 of them regional) in Northeast Illinois.
The 12 facilities and their supervisory personnel were visited by the research team and analyzed in depth for their general business
characteristics (e.g. type of goods, number of employees, hours of operation etc.), property characteristics (e.g. location, facility size,
ceiling height) and their truck trip productions (e.g. number of arrivals-departures, geographic distribution of inbound-outbound movement,
volume per quarter etc.).
The findings of this research project in reference to the 12 facilities indicate the uniqueness and significant complexity of the distribution
centers. There is clear evidence of an increase in size (sq. ft & ceiling) and automation (racking systems) of the newer facilities as well as
24-hour operations. The comparison of daily heavy truck movement shows significant arrival concentration between 8am-10am and 8pm-
6am. In contrast the heaviest departure activity is between 4-6pm. The majority of originating freight is from the Midwest with the
outbound distributions also being allocated regionally then nationally and internationally (minimal allocation). Another result was the
increased volume concentration in the third quarter of each year between July and September.
The above results along with the significant expansions of RDC facilities in the last few years indicate the additional need for studying the
locations of the various facilities and the heavy truck traffic volume they generate. The results should also be useful in determining the
economics benefits/costs and impacts of these facilities for purposes of making infrastructure investment, economic incentive, and land
use decisions.
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