Side/Single-Face Platform:
Up to 100mph: 2.5m minimum width, any shelters/benches etc placed behind that. Isolated columns can be 2m from the edge if not able to place them 2.5m away. Can be reduced to 2m over the last 20m of the platform if it isn't part of an access or exit route (normal or emergency), passengers won't naturally congregate for the reduced width portion, and everybody agrees.
If the speed (normal or Enhanced Permissible Speed) is 100mph or more: 3m minimum width from the platform edge.
Island/Double-face platform:
Both lines 100mph or above: 6m
1 line 100mph or above: 5.5m
both lines <100mph: 4m.
In all cases if there is a building or structure between the platform faces then the 2.5m/3m minimum width applies to the portion alongside the structure.
(GIRT7020 Iss 2.1)
Projects can seek derogation from the standards if site constraints prevent these widths.
All subject to pedflow analysis. A 2.5m wide platform would not be permitted at a busy station, for example.
