To date, limited research has identified comparative metrics for Transportation Demand Management (TDM) programs throughout the United States. Whereas every community is different, and hence, the specific activities and strategies employed by a TDM program will likewise differ, commonalities between programs can be illustrated for comparison and benchmarking purposes. In April 2008, the Texas Transportation Institute (TTI) conducted a comprehensive survey of TDM programs in the United States. Initial results from this effort are provided in this paper for: carpool programs, vanpool programs, guaranteed ride home, employer outreach, regional marketing, and performance evaluation. In order to delineate the characteristics of abig city program versus that with a more limited scope, results were generally delineated by urban area size, including rural areas. Interestingly, this delineation did not substantially alter the findings, especially when controlled for population size. In short, small and medium sized TDM programs are generally doing the same types of activities as their larger brethren.
Abstract