Tracer is the public bus system for the city of Tracy, California, USA and[1] the bus system is unique in that since 2002 every April and December the buses are 100% free to all riders.[2]
The service provides four circulator routes. The buses are designated by letters A through D.[1] Fares range from free to 1.50 depending on the category.[1] Most routes operate from approximately 7 AM to 7 PM weekdays and 9 AM to 5 PM on hourly headways.[1] Service is provided near Tracy ACE station and to West Valley Mall.[1] Major hubs for this bus system are Tracy Transit Center with connections to San Joaquin Regional Transit District (SMART) bus lines to neighboring communities in addition to Greyhound Lines and Amtrak Thruway Bus services. The service's second hub is at Naglee Park and Ride Lot by West Valley Mall where numerous SMART lines connect to the Dublin/Pleasanton BART station and job centers in Livermore, Palo Alto, Mountain View, Sunnyvale, Santa Clara, Pleasanton, Milpitas, and San Jose. The Tracer line A connects with the Amtrak Thruway Bus at the Tracy Amtrak Bus Stop at Clover Road near I-205 and Tracy Boulevard. Line 6 runs six daily trips in either direction between Stockton and San Jose, California while line 34 twice daily trips to San Francisco.[3][4]