Northern Line

MQT on 2008-02-20
Session date: 
February 20, 2008
Question By: 
Brian Coleman
GLA Conservatives
Asked Of: 
The Mayor


How many signal failures and multiple signal failures there have been on the Northern Line during the two most recent periods (covering November and December 2007 and January 2008)?


Answer for Northern Line

Answer for Northern Line

Answered By: 
The Mayor

London Underground's performance statistics are based on 4-week periods, rather than calendar months. The most recent periods for which results are available are periods 8, 9 and 10. The number of signal failures on the Northern line for these periods are as follows:

Period 8: 20 failures Period 9: 34 failures Period 10: 21 failures