Northern Line

MQT on 2006-09-13
Session date: 
September 13, 2006
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 July and August 2006)?


Answer for Northern Line

Answer for Northern Line

Answered By: 
The Mayor

London Underground (LU) compiles its performance statistics on the basis of 4-week periods rather than calendar months. The most recent two periods for which results are available are LU period 4 (25 June ' 22 July 2006), when there were 25 failures, and period 5 (23 July ' 19 August 2006) when there were 35 failures. These are the numbers of signal failures that were attributable to the Infraco and that resulted in service disruptions of 2 minutes or more.