Platform humps were installed on all Victoria Line stations, except for Pimlico, during late 2010 and 2011. This was done to provide step-free access to trains. The Rail Vehicle Accessibility (Non Interoperable Rail System) Regulations 2010 and the Disability Discrimination Act 1995 created the need for the humps to be installed. The humps are a ramp type, similar to those being installed on some mainline stations. They are of a masonry construction.