Many studies and land use planning attempts have done to influence people’s travel choices these days. Rather than sprawl development with automobile-dependent, single-use zoning, and cul-de-sacs, scholars and city planners now prefer and recommend more walkable, mixed-use development, and compact development. Along with neo-traditional development and pedestrian pockets, one trend of recent urban planning, Transit-Oriented Development (TOD), has attracted people’s attention. Given the new development of transportation methods, the present study explores how new transit stations will change people’s mobility and activity patterns. The main contribution of this project is to create an index of walkability attributions in a TOD setting based on previous research and to suggest assessment measures of walkability using a Geographic Information System (GIS). / text