You will notice a slight change in colour between the stair tread and the edge of the slippery stair, this is because a Anti-skid tape called ComfyGrip Clear Antislip tape has been applied to the stairs edge.
Typically the floor in question is not a slip hazard but in this case, it is the entrance to a water works program where staff walk in water on a regular basis and the combination of varnish and water becomes a highly dangerous slip hazard. Lucky for modern technology allowing a safe solution via the ComfyGrip Clear Antislip tape nonslip tape.
This leads to a rather important point: The more dangerous the environment around the surface, the more slip resistant the floors surface should be. Slip resistance is measured by a ratio called the coefficient of friction. It is generally considered in the industry that a walkway surface with a coefficient of friction higher than 0.5 is non hazardous (this depends on your country and its laws). The lower the coefficient of friction the more slippery the floor. For example if you walk on ice with rubber it will have a coefficient of friction of 0.06, whereas rubber on asphalt has a coefficient of friction of 0.6. This means that ice is roughly 10 times slipperier than asphalt. In saying that 0.5 is non-hazardous, it must be mentioned that this is the bare minimum and if water, grease or grim get onto the floors the non-hazardous surface can become quite dangerous.
If a claim of slippery surface arises, determination of the coefficient of friction testing may help with the evaluation of the claim. the device used for testing is generally called a slip meter.
The majority of slip and falls occur on stairs. The reason for this is varied including: stair construction, poor lighting, design deficiencies, obstructions on the stairs, and inattentiveness. The slope of a stairway for general purposes should be 30 degrees. Building codes require the landlord to maintain a minimum level of lighting. The lighting level for a stairway should not be less than 3 foot candles at floor level. For areas where traditional lighting is not prevalent you can purchase Photo-luminescent anti-slip tape from
