There are many car hire firms located in Paisley, especially near the airport and the Phoenix retail park on the North West side of the town. Bus services run throughout the town and neighbouring villages. Taxis come in two forms: Private hire cars which are cheap but must be booked by telephone in advance or public hire cars which may be hailed in the street. All public hire taxis are white and have wheelchair access. Taxis usually sit on the taxi rank at the Airport or outside Gilmour Street Station. All public hire taxis are metered whereas the private hire cars usually calculate the fair using the car's odometer and a fair chart based on the number of miles travelled.