sentences:  The U1 runs between Southampton Airport and the National Oceanography Centre via Wessex Lane Halls, Highfield campus, Portswood, Southampton City Centre and Southampton Central railway station.The other regular routes, the U2 and the U6, run between the City Centre and Bassett Green and Southampton General Hospital respectively while the final route, the U9, runs an infrequent service between Southampton General hospital and Townhill Park.Students who live in some halls of residence receive an annual smart-card bus pass, allowing them to use all of the Unilink services without extra payment.