A good model to apply when conducting slip risk assessment is the 'The Slip Potential Model'. The essence of the Slip Potential Model approach is the recognition that a number of issues contribute to the potential for pedestrian slip accidents: it is not sufficient to consider one or two in isolation. It is by understanding the inter-relationship, and the relevance, of each component in a particular circumstance that an holistic assessment of the slip potential may be made. The slip potential model looks at those factors which are controllable and those which are predictable.
Controllable factors
The controllable factors are those that usually can be changed or influenced by a direct or indirect action: the floor type, the environment, use, footwear (employees only) and the contamination.
Predictable Factors
The predictable factors are assessed with an understanding of the final use of the surface in question. The users, their footwear (public access) and the expected behaviour are all significant.
In any site investigation you should look at the (intended) application of the floor within the building such as:
- Lighting conditions
- Noise
- Entrance systems
- Public and/or employee access
- Contamination
- Condensation
- Maintenance regime
- Obstacles, stairs, ramps
- Changes in surface
- Distractions
- Human Behaviour (ergonomics, biomechanics, psychology, tribology, age, gait, pushing, pulling and carrying loads)
- Perception
- Expected user groups
Once you have a full understanding of the application you can identify the actions that are required to ensure the floor surface is adequate for intended use.