All the London railway stations :
Underground lines : District, Circle, and Network Rail
The main line Victoria station is largely
accessible, and ramps from train to platform are available on request.
The underground lines are all served by lifts from the booking hall. There are also lifts from the bookinhg hall to street level.
Step-free access stations have lifts or ramps - or a combination of both - so that customers don't have to use escalators or stairs to move between the street and the platform.
General description : See wiki
More comment : National Rail Map & Guide
Accessibility friendly :