Transportation Demand Management Benchmark: Results from the 2008 TDM Program Survey
To date, limited research has identified comparative metrics for transportation demand management (TDM) programs throughout the United States. Every community is different. Hence the specific activities and strategies employed by a TDM program will likewise ditffer, but commonalities among programs can be illustrated for comparison and benchmarking. In April 2008, the Texas Transportation Institute conducted a comprehensive survey of TDM programs in the United States. Initial results from this effort are provided for carpool programs, vanpool programs, guaranteed ride home, employer outreach, regional marketing, and performance evaluation. To distinguish characteristics of a big city program from one with a more limited scope, results were generally delineated according to urban area size, including rural areas. However, this delineation did not substantially alter the findings, especially when controlled for population size. Small- and medium-sized TDM programs are generally involved in the same types of activities as are their larger
TRANSPORTATION RESEARCH RECORD 2118, TRANSPORTATION RESEARCH BOARD, 2009.
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