Constrained Destination Choice Set Generation: Comparison of GIS-Based Approaches

摘要: This paper describes how spatio-temporal constraints help circumscribe individual activity-travel behavior. One aspect of such behavior is the choice destinations for engaging in discretionary activities. In recent years, several Geographic Information System (GIS)-based approaches have been proposed and implemented, which incorporate definition destination sets. These are based on either overlay analysis or shortest path algorithms, as implemented within a GIS. compares outcomes generated by two algorithms: one relying overlays other, paths. The approach well-known to researchers, whereas described new literature. algorithms realistic travel environment developed seven counties Louisville, KY-IN MSA. For each approach, constrained sets delineated using same 85 observations. A statistical comparison size (i.e., buffered area number destinations) suggests that fails account many potential destinations. other words, will be much smaller than those approach.