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EVALUATION OF SHOPPING CENTER TRIP TYPES

The results are described of field studies aimed at identifying the net traffic impact of commercial establishments on the surrounding street system. The study results are believed to be indicative of conditions widely to be found in many types of commercial activities and urban environments. The background to the study, the basic shopping trip types, and study site selection are detailed. The data collection procedure and the cross-check analysis are described. The study led to several conclusions: (1) commercial activities typically generate relatively few new vehicle trips; (2) commercial centers located on major arterials are likely to draw a significant percentage of their total customers from the passing traffic stream; and (3) in any case, the net traffic impacts of commercial activities quickly dissipate as the distance from the commercial activity is increased.