Station slip testing.
High footfall meets weather in one place.

Stations are the most weather-exposed public buildings in the UK

A main-line railway station concourse sees the full weather cycle — water tracked from platforms, wet umbrellas, melted snow, autumn leaf mould — compounded by footfall in the tens or hundreds of thousands per day. Station slip claims are frequent and high-profile, with Network Rail, TfL and Train Operating Companies all publishing slip-incident statistics.

Stations are also architectural — glass-and-stone redevelopments, polished stone concourses, Victorian terrazzo, modern vinyl overlays. A heterogeneous floor plate demands a heterogeneous pendulum survey.

The station environments we test

Main concourse

Polished stone, granite, terrazzo, porcelain. Wet-weather performance is the critical test — concourse floors routinely test at PTV 45+ in the dry and PTV 22–30 in the wet. The dry-to-wet drop is the important number.

Ticket hall and retail zone

Typically a different material from the main concourse — often polished stone or vinyl. Retail-style claims exposure in the adjacent shops and cafes.

Platforms

Tarmac, bituminous surfacing, concrete paving slabs, granite edging. The platform edge — the yellow warning line and the tactile strip — is a specific pendulum target given its safety-critical nature. Rail-industry guidance (Network Rail NR/L3/CIV) specifies platform slip-resistance requirements.

Stairs and staircases

Stair nosings are the specific focal point. Modern nosings typically incorporate grit or textured strip; Victorian stone stairs often rely on the material itself and can polish dangerously below PTV 25 on wet treads.

Escalator and travelator zones

The landing at the top and bottom of escalators is a specific slip hotspot — the pedestrian is stepping off a moving surface onto a stationary one, often with tracked water.

Station canopies and exposed external areas

Platforms are partially exposed even when covered. External pedestrian routes to and from station entrances, including set-downs and kerb transitions.

Bus station concourses and bays

Tarmac, concrete, block paving and coloured thermoplastic marking. Boarding zones concentrate pedestrian traffic in a small area.

Tram stops and on-street platforms

Edge-strip, platform surface and street-level transitions. Particularly relevant to Manchester Metrolink, West Midlands Metro, Nottingham Express Transit, Sheffield Supertram, Blackpool tramway and Croydon Tramlink.

Who commissions station slip testing

• Network Rail — for managed stations and routine asset inspection.
• Train Operating Companies — for stations they manage on behalf of Network Rail.
• Transport for London — Underground, Overground, DLR and Elizabeth line stations.
• PTEs and combined authorities — Transport for Greater Manchester, Transport for West Midlands, Merseytravel, Nexus (Tyne and Wear), SPT (Strathclyde), Transport for Wales.
• Infrastructure contractors — for capital-works acceptance testing.
• Bus station operators — typically councils or Stagecoach/Arriva/First group local subsidiaries.

Station PTV targets