Ongoing = Not Known

An interesting exchange about the Blackwall Tunnel maintenance works:

John Biggs: Thank you for your informative and thorough reply to my question 2348/2007. When ongoing maintenance works necessitate regular and routine closures, please could you ask TfL to display the end date of their works on the www/tfl.gov.uk/trafficnews website to "ongoing" which is more reassuring to motorists than "not known".

Ken Livingstone: TfL appreciates your feedback and has confirmed that its traffic news page is being updated so that the Blackwall Tunnel works are described as "ongoing".

So that's reassuring - Labour are such experts at the use of language...