UKAS · ISO/IEC 17025 Accredited Slip Testing Laboratory
← Car Park Slip Testing / Multi-Storey
UKAS Slip Testing & Pendulum Slip Test · Multi-Storey

Slip resistance testing for multi-storey car parks.

Multi-storey car parks are the highest-density slip-risk environment in the UK car-parking sector — and the most demanding pendulum slip test brief. Eight to fifteen decks, helical ramps under continuous traffic, stair-cores and lift-lobbies under wet-shoe carry-in, and a roof deck exposed to the full weather cycle. Multi-storey slip testing programmes must be planned around traffic patterns — not vice versa. Every pendulum slip test point we record on a multi-storey deck is calibrated to the specific surface, contamination profile and incident exposure of that zone.

11+Average decks tested
180Test points · typical
1,400+Pendulum tests · 2025
5dSlip test report
FIG. 02 · Pendulum slip test register DECK PTV WET PTV DRY STATUS Deck 1 · Ramp 52 68 Deck 2 · Bay 88 38 62 Deck 3 · Lobby 29 55 Deck 4 · Stairs 34 58 Deck 5 · Bay 102 41 63 Deck 6 · Ramp 48 66 Deck 7 · Bay 16 31 59 Roof · Centre 22 51 Pendulum slip test · 8 of 124 points shown
Pendulum slip test · UKSRG 36+ PTV Slider 96 · Slider 55
/ 01Slip testing scope

What a multi-storey pendulum slip test programme covers.

A complete multi-storey slip testing assessment runs to 80–180 pendulum slip test points across an average 8-deck structure, depending on operator-specific risk register and any incident-driven slip testing priorities.

01EVERY DECK

Pendulum slip test on power-floated concrete deck slabs

Slip testing at one bay per 200 sq m as a baseline, with additional pendulum slip test points at column bases, bay-line intersections and any zone with visible wear or fluid-drip patterning.

02EVERY RAMP

Slip testing of helical & split-level ramps

Pendulum slip test at top, middle and bottom of every ramp run, plus the threshold transitions onto the connecting deck. Slip testing performed at the actual gradient.

03EVERY STAIR-CORE

Slip testing of stair treads & nosings

Pendulum slip test at top, middle and bottom flight of every stair-core. Tread surface slip tested with slider 96; nosing slip tested separately. Lift-lobby thresholds slip tested as a separate surface category.

04ROOF DECK

Pendulum slip test on mastic asphalt & bitmac roof surfaces

Higher-density pendulum slip test point pattern on the roof — every 80 sq m as a slip testing baseline. Summer-baseline and winter-contaminated pendulum slip test visits scheduled separately.

05ENTRY / EXIT

Slip testing of vehicle entry / exit barrier zones

Pendulum slip test on the 6-metre wet-shoe-carry-in zone at every pedestrian entry door, plus the rolled-asphalt or block-paviour transition at vehicle entry points.

06EV BAYS

Slip testing of EV charging bay surfaces

Newly-installed thermoplastic anti-slip overlays verified post-installation by pendulum slip test, then retested at 12 months. Cable runout zones slip tested as a pedestrian route.

/ 02Slip testing by operator type

Pendulum slip test programmes by operator profile.

Profile · 01

National operators

Large operators with portfolios of 50+ assets across UK city centres. Slip testing programmes typically run annual pendulum slip test baseline plus winter contaminated slip test on roof-deck assets, with dashboard reporting at portfolio level.

Profile · 02

Premium city-centre operators

City-centre operators with elevated guest-experience expectations and higher-specification finishes. Slip testing programmes typically include enhanced lift-lobby and stair-core pendulum slip test assessment, with same-week slip test reporting on incident-driven retests.

Profile · 03

Transport-hub concessions

Operators with significant airport and station car park exposure. Out-of-hours slip testing programmes coordinated with rail operating company timetables and airport landside H&S frameworks; pendulum slip test visits scheduled around live train and aircraft operations.

Profile · 04

Pan-European groups

Operators within larger European groups with their own group-level safety reporting standards. Slip testing programmes calibrated to those frameworks — slightly enhanced pendulum slip test documentation pack at no additional cost.

Profile · 05

Concession-led operators

Concession operators with significant local-authority and hospital-trust contracts. Slip testing programmes typically aligned to the underlying landlord's insurance review cycle, with pendulum slip test visits triggered by both the operator's own risk register and the host estate's schedule.

Profile · 06

Independents & single-asset

Single-asset operators and small-portfolio independents — typically reactive slip testing post-incident, with growing uptake of annual pendulum slip test programmes following insurer pressure on continuous slip testing evidence records.

/ 03Recent slip testing engagement

From the field — multi-storey slip testing programme.

Anonymised · 2025

Central London 11-deck multi-storey — annual slip testing programme.

A central London operator engaged us for an annual pendulum slip test programme covering 156 slip testing points across 11 decks, two helical ramp runs, four stair-cores and the roof deck. Slip testing visits were scheduled exclusively between 23:00–04:30 to avoid revenue-bay closure during peak occupancy. The pendulum slip test programme identified 14 zones operating below PTV 36 in wet condition — nine related to roof-deck exposure, three to stair-tread nosings, and two to lift-lobby thresholds. All fourteen were treated and re-slip-tested within the same calendar quarter. The operator's slip-incident reportable rate reduced 71% year-on-year — a direct outcome of the continuous slip testing programme.

S
Surface Performance Ltd
Slip Testing Ref. SP-MS-2024-217
/ 04Adjacent slip testing sectors

We also deliver slip testing for related sectors.

Super-market
Supermarket slip testing
View →
Retail Park
Retail park slip testing
View →
NHS Trust
NHS Trust slip testing
View →
Airport
Airport car park slip testing
View →
/ 05Slip test quote

Tell us about your multi-storey slip testing requirement.

Whether you're an operator, asset manager or insurer, we'll return a fully-costed, no-obligation slip testing quotation within one working day. Every quote covers UKAS-accredited pendulum slip test scope and report turnaround.

Speak to our slip testing team
020 8246 5562
Email
info@surfaceperformance.com
Out-of-hours slip testing

22:00–05:00 pendulum slip test visits scheduled by arrangement.

Multi-site slip testing portfolios

Single-contract pendulum slip test programmes for operators of 10+ assets.