IMPACT: An Integrated GIS-Based Model for Population Aging Consequences on Transportation

نویسندگان

  • H. Maoh
  • P. Kanaroglou
  • D. Scott
  • A. Páez
  • B. Newbold
چکیده

Recent advancements in computing and Geographic Information Systems (GIS) have revolutionized the development of decision support systems (DSS) to study and simulate the future of travel demand in urban areas. While travel demand models have been widely developed and used to inform the urban planning process, very little has been done to explicitly account for the aging of population within such models. In this paper, we report on the development of IMPACT (Integrated Model for Population Aging Consequences on Transportation), a GIS‐based decision support system (DSS) capable of assessing the ramifications of population aging on the performance and usage of the urban transportation system. As a geo‐spatial DSS, the model is developed as a stand‐alone GIS‐T platform using components from the ESRI MapObjects software. To account for the aging of population during simulations, a demographic model is formulated and integrated with the travel demand model. The latter simulates travel flows on the road network of the city given the simulated demographic characteristics of drivers. The model is calibrated using 1996 and 2001 data that are obtained for the Census Metropolitan Area of Hamilton in Ontario, Canada. A key feature of the developed model is its ability to tease out the impacts of population aging on urban travel.

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تاریخ انتشار 2007