<p>The importance of commuter rail as a transit mode has increased with the expansion of services to new metropolitan areas, such as San Diego, Los Angeles, South Florida, Dallas, and Washington, D.C., and with the expansion of existing services in areas of New York, Chicago, Boston, and San Francisco. This expansion of services can have economic impacts in the communities served by rail stations. Some of the economic impacts of a commuter rail service have been studied. The overall impact of a commuter rail station in single-family residential property values located near of the station can range up to an increase of 6.7 percent (Armstrong, 1996). Other economic impacts of a commuter rail service are the benefits associated with the relocation of residents and workers in order to take advantages of the accessibility offered by a new or improved commuter rail service. The objective of this research is to conduct an investigation on the impacts of transit accessibility changes upon residential location.</p>