Orange County Transportation Authority
（重定向自OCTD）
![](/Images/godic/202501/30/Orange_County_Transportation_Authority_logo.svg5645.png"){kind=spacer}
![](/Images/godic/202501/30/NABI_40.09_LFW_bus_OCTA5645.jpg")
![OCTD busses in the 1980s](/Images/godic/202501/30/OCTD_buses,_1980s5645.jpg")
![Original 1999 proposed route for CenterLine from Fullerton to Irvine. Later, a truncated](/Images/godic/202501/30/Orange_County_Centerline_light_rail_route_map5645.jpg")
The Orange County Transportation Authority (OCTA) is the public sector transportation planning body and mass transit service provider for Orange County, California. Its ancestor agencies include not only the prior Orange County Transit District but also such diverse entities as the Pacific Electric Railway and the South Coast Transit Corporation. In 2005, OCTA was judged America's Best Public Transportation System by the American Public Transportation Association, for its record gains in bus and Metrolink commuter trains ridership that it operates or funds. OCTA also operates the 91 Express Lanes.