All the London railway stations :
Elm Park is on the District underground, and is accessible to wheelchair travellers between street level and platforms; but mind the steps and a steep ramp! See pictures and further accessible transport in London detail from links below.
Underground lines : District
AccessAble Access Guide :
Accessibility friendly : No. Eastbound towards Upminster (A step 267mm/gap 23mm), westbound towards Earl’s Court (A step 203mm/gap 7mm).
Level access between street and platform, via a steep ramp.
General description :
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Inclusive Britain Station Guide