Facilities include automatic doors, toilets, and a lift between all floors of the airport, including train platforms. Wheelchairs are available for visitors, but passengers requiring wheelchairs and special assistance should inform their airline prior to travel. ACompany (tel: (020) 601 5018) provides an electrocar service, with shuttles running between piers D, E, F and G and in the Arrivals hall. Disabled parking is available in car parks P1, P2 and P3. A bus is available on request (tel: (020) 316 4041) from car park P3 to take disabled passengers to the terminal; passengers requiring this service should phone at least 24 hours in advance. Visicom (tel: (020) 601 2929) supplies text telephones for hearing-impaired passengers; induction loops are fitted at the information desks, transfer desks and in the waiting areas in the central lounge.