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OCR for page 184
Lessons Learned from the Implementation of New York Activity-Based Travel Model Kuo-Ann Chiao, New York Metropolitan Transportation Council Ali Mohseni, New York Metropolitan Transportation Council Sangeeta Bhowmick, New York Metropolitan Transportation Council T he New York Best Practice Model (NYBPM) has Air Quality Conformity Analysis; been developed and implemented to meet the Southern Brooklyn Transportation Investment demand of regional planners seeking a more accu- Study; rate way to identify transportation requirements and fore- The Gowanus Expressway and Kosciuszko Bridge cast demand on the transportation system. It has been used Study; on many regional studies to simulate travel patterns includ- Tappan Zee Bridge and the I-287 Corridor Study; ing where people travel, their modes of travel (car, subway, Bruckner Sheridan Expressway Study; bus, ferry, walk and bike, or commuter rail), preferred Bronx Arterial Needs Study; and routes (highway versus local roads), and their trip times. Goethals Bridge Modernization Draft Environ- NYBPM is an activity-based model that attempts to mental Impact Study. predict the detailed travel patterns of a diverse popula- tion using numerous travel modes. It does this by intro- As one of the first metropolitan planning organiza- ducing innovative approaches to the traditional travel tions (MPOs) in the country to develop and implement a demand models including the concept of journey or tour new generation of travel demand forecasting models, as the unit of travel; microsimulation, which is used to this paper shares New York Metropolitation Trans- simulate the travel pattern of each person in the region portation Council's (NYMTC's) experience throughout and among all other modes of travel; and nonmotorized different stages of development and implementation of modes. NYBPM. Immediately after release of the models in NYBPM covers 28 counties and is divided into 3,586 1992, NYMTC's modeling staff was faced with a series transportation analysis zones. The model analyzes travel of problems, which are discussed in the following patterns by four time periods and eight trip purposes on sections. six highway and four transit modes. The highways of the region are represented in a geographic information sys- tem (GIS) with more than 53,000 segments. All available IDENTIFIED NYBPM ISSUES transit modes of the New York metropolitan region rang- ing from commuter rail to ferries are also coded in GIS. Timeliness and Completeness of Data NYBPM was previewed before a national audience in January 2001 during the TRB Annual Meeting in Wash- The development of the regional NYBPM, and the data ington, D.C., and immediately was in wide implementa- required for its development, largely occurred in the mid- tion throughout the region on various projects in and late 1990s. Networks were developed to represent a different sizes including: 1996 base-year condition, 6 years after the most recent 173