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Development of New York Metropolitan Transportation Council Tour-Based Model Peter Vovsha, PB Consult, Inc. Kuo-Ann Chiao, New York Metropolitan Transportation Council T he New York Metropolitan Transportation Council tion of mode-specific and time-of-day period-specific trip (NYMTC) is responsible for transportation tables; and improvement programming activities in the greater Traffic and transit simulation, which is imple- New York Metropolitan Region, including the preparation mented by time-of-day periods. of plans that comply with the requirements of both the Intermodal Surface Transportation Efficiency Act of 1991 and the Clean Air Act Amendments of 1990. The New York model developed for NYMTC in the period 2000 to 2002 (actual modeling work period, though the data col- lection and network preparation stages started in 1994) is the first comprehensive multimodal model developed for the New York Metropolitan Region, which encompasses an entire 28-county, three-state region that includes por- tions of Connecticut and New Jersey, with a total popula- tion of 20 million residents. The NYMTC model's success has proven that the concept of a microsimulation activity- and tour-based model can be applied for a large metropol- itan area with a unique level of complexity for the transportation system. The NYMTC model structure appears in Figure 1. It has four major consecutive modules: Tour generation, which includes household synthe- sis, automobile ownership, and journey frequency choice models; Tour mode and destination choice, which includes premode choice, primary destination choice, entire-tour mode combination choice, stop-frequency choice, and stop-location choice; Time-of-day choice and preassignment processor, which includes tour time-of-day choice for outbound and inbound directions, trip mode choice, and construc- FIGURE 1 Structure of NYMTC model (New York). 21