Resumen
In the United States, mass transit is considered to be related to crimes in some cases, on which scholars focusing on different cases have drawn different conclusions. In this research, spatial relation analysis between 12 types of major crimes and Bay Area Rapid Transit (BART) stations in San Francisco were conducted on different spatial levels from city, block groups to blocks and streets. It is demonstrated that mass transit and crimes are closely related in San Francisco. On the macro level, the extension direction of whole crimes and the BART service alignment are similar. On the meso-level, BART stations are significantly correlated with most types of crimes. No matter in the downtown area or not, the neighborhoods around stations are high criminal regions. On the micro level, crimes tend to cluster obviously around the stations.