Mr. Gareth Thomas
To ask the Secretary of State for Transport pursuant to his answer of 13 March 2003,Official Report, column 359W, if lie will publish an assessment of the performance of (a) Silverlink services from Hatch End and Headstone Lane into Euston and (b) the Chiltern Line service from Sudbury Hill and Northolt Park into central London in (i) 1996 and (ii) 1997; and what investment has been made into stations at A) Hatch End, (B) Headstone Lane, (C) Northolt Park and (D) Sudbury Hill since 1996. 
§ Mr. Jamieson
As stated in my answer of 13 March, the rail performance figures for each operator published in National Rail Trends and On Track are not broken down to route level, but reflect the performance of their services in aggregate.416W
Information on amounts invested at individual stations is not held centrally.