Slipperiness is when a surface has a low
coefficient of friction, allowing objects to glide across the surface. People walking on slippery surfaces are likely to
slip or
fall. A surface can for example be slippery due to it being wet, or due to it being icy. There are several competing theories about why
ice is slippery.
Ice cleats, used to prevent slipping when walking on icy roads
References
^Wen-Ruey Chang, Theodore K. Courtney, Raoul Grongvist Measuring Slipperiness: Human Locomotion and Surface Factors 2002 0415298288 "A number of 'purely' subjective approaches (e.g. paired comparisons) have been applied to measure slipperiness. Human subjects seem to be capable of differentiating the slipperiness of floors (Yoshioka et al. 1978, 1979, Swensen et al."