Question to the Department for Transport:

To ask the Secretary of State for Transport, whether his Department has undertaken modelling of the effect on train services to and from London Victoria station that pass through Clapham High Street station of stopping at that station to determine whether or not to make changes to those services.

The Department did not complete modelling of stops at Clapham High Street but the Department estimates that each stop would add 3-4 minutes journey time. The Department also determined that the length of platforms at Clapham High Street would be too short for existing South Eastern services to stop at.