Tucson's Sun Tran bus system serves greater Tucson with standard, express, regional shuttle, and on-demand shuttle bus service. It was awarded Best Transit System in 1988 and 2005. A 3.9-mile streetcar line, Sun Link, connects the University of Arizona campus with 4th Avenue, downtown, and the Mercado District west of Interstate 10 and the Santa Cruz River. Ten-minute headway passenger service began July 25, 2014. The streetcar utilizes Sun Tran's card payment and transfer system, connecting with the University of Arizona's CatTran shuttles, Amtrak, and Greyhound intercity bus service. COUNT 5
QSN1 How long is the Sun Link? ANS1 3.9-mile QSN2 What is Tucson's bus system called? ANS2 Sun Tran QSN3 What transit systems does Sun Link connect to? ANS3 the University of Arizona's CatTran shuttles, Amtrak, and Greyhound intercity bus service QSN4 When did Tucson get a 'Best Transit System' award? ANS4 1988 and 2005 QSN5 What kind of vehicles operate on the Sun Link? ANS5 streetcar