The mechanism of urban growth and its interaction with socioeconomic and environmental systems still are poorly understood. Consequently, policy makers and planners often face tremendous difficulties in decision making with lack of vision into the future of urban growth. The Land-use Evolution and Impact Assessment Model (LEAM) has been developed as a comprehensive urban planning support system in a regional scale. LEAM incorporates ecological, geographic, and environmental theories into a single hierarchical framework, yet it is designed as an open architecture. LEAM is unique for all subsystems are explicitly and separately modeled. Submodels are developed by experts, who have substantive knowledge relating to a particular system, using an icon-based graphical modeling tool, STELLA. These contextual submodels then are linked to form the main framework of the dynamic model that run simultaneously on each grid cell of raster GIS map(s) in a Spatial Modeling Environment (SME). The overall model then is created in an open and distributed manner. A land-use decision support system for the St. Louis metropolitan region using the LEAM approach has been developed. © 2008 Urban and Regional Information Systems Association.
|Original language||English (US)|
|Number of pages||12|
|State||Published - Nov 12 2009|
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