Harrow-on-the-Hill station there will only be step-free interchange between Metropolitan line trains travelling in the same direction) and "Entry and exit not accessible" (see station description above). The Lowlands Road entrance (which is also the route to the car park and the car passenger pick up and set down area) has the fewer steps. There is a bus station located next to the station offering London Buses services right across North London. Harrow-on-the-Hill station Harrow-on-the-Hill is a London Underground station served by the Metropolitan line and National Rail services, in Travelcard Zone 5. The stations two exits are located between College Road
London Underground infrastructure lines share all their stations and most of the track with other lines. The Bakerloo, Central, Jubilee, Northern, Piccadilly, Victoria and Waterloo & City lines are deep-level tubes, with smaller trains that run in two circular tunnels with a diameter of about , lined with cast-iron or precast concrete rings, which were bored using a tunnelling shield. It is these that were the "tube" lines, although since the 1950s the term "tube" has come to be used to refer to the whole London Underground system. Many of the central London deep-tube line stations, such as those on the Central and