With a layout similar to the other tube (aka "Underground") stations on the north end of the Northern Line, Finchley Central has the usual above ground platforms with a pedestrian bridge straddling the lines. The station itself is quite old and still looks a little Victorian. It was opened in 1867. Yes, 1867.
There are two entrances/exits to the station. One is through the regular ticket hall on Chaville Way on the north side where the parking lot is located. The other is on the south side, leading on to Station Road. This second entrance does not have a ticket barricade, but there are Oyster readers for those who use such things.
Trains are common enough during the peak hours. Some continue north to High Barnett, but Finchley Central is also the junction for the short Mill Hill branch.
Interesting tidbit: Finchley Central was the home station of Harry Beck who designed the original Tube map in 1931. There is a plaque on the southbound platform. read more