This line shapefile contains bicycle lanes, paths, and routes within the 9 counties of the San Francisco Bay Area in California. Data are current as of May 19, 2006. This layer is part of the Bay Area Metropolitan Transportation Commission (MTC) GIS Maps and Data collection.This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.