Its purpose was the servicing of the various lineside industries on the southern part of the Lea Valley Lines as well as the Enfield Town and Chingford Branch Line Chingford branch goods depots. Additionally it used to handle the perishable goods traffic as the policy was to keep this apart from more general traffic. In 1923 operation passed to the London & North Eastern Railway and the station was renamed to its current title, Northumberland Park on 1 July 1923, this is also the name of the surrounding district, in Tottenham, North London. On 7 January 1931 there was an accident at Northumberland Park when a coal train hit a shunting locomotive which was then propelled into a brake van of another freight train. This resulted in the brake van catching fire and the train guard was burnt to death. The signal box (built 1914) was located near the level crossing and was raised up on stilts. In 1940 during World War 2 an unexploded anti-aircraft shell fell on the adjacent marshalling yard. Following nationalisation in 1948 the station became part of the Eastern Region of British Railways. Around 1961 the marshalling yard was closed and the site used for the Northumberland Park Depot of London Underground's Victoria line. In 2013 this is the only above ground location where Victoria line stock can be seen and the depot is joined to the main Victoria line at a junction north of Seven Sisters tube station. The Lea Valley line between Copper Mill Junction and Cheshunt was electrified at 25 kV in 1969. The station was also rebuilt at this time with the work being completed in 1970. Prior to the completion of electrification in 1969, passenger services between Cheshunt and London Liverpool Street through Northumberland Park were normally operated by Class 125 diesel multiple units (which had been purpose-built for the line in 1958). When Sectorisation was introduced in the 1980s, the station was served by Network SouthEast until the privatisation of British Rail. The signal box (by this date only controlling the level crossing gates) was closed. Recent history Following privatisation in 1994 management of the station was initially allocated to a business unit which succeeded the old British Railways structure before being taken over by West Anglia Great Northern (WAGN) in January 1997. Initially owned by Prism Rail, National Express took over operation in July 2000. In 1994 responsibility