China Railway Corporation (CRC) - China Railway or CR, full name China Railway Corporation is the
national railway operator of the People's Republic of China, under the regulation of the Ministry
of Transport and the National Railway Administration. It used to be part of the now defunct Ministry of Railways.
Chicago Transit Authority (CTA)
Massachusetts Bay Transportation Authority (MBTA)
Southeastern Pennsylvania Transportation Authority (SEPTA)
Los Angeles County Metropolitan Transportation Authority (Metro)