SLIP RESISTANCE MEASUREMENT OF EXISTING PEDESTRIAN SURFACES DEFINITIONS
For the purposes of this Standard, the definitions below apply.
The ratio of the tangential force required to move a body across a horizontal surface to the vertical load imposed on the surface by the body.
The mean BPN value required on a slope of a known maximum gradient.
The coefficient of friction required to maintain movement at a constant speed
An intrinsic property of two interfacing, interacting surfaces resulting from their micro- and macro-roughness, inter- intra-molecular forces of attraction and repulsion, and their visco-elastic properties.
A surface with a designed raised geometrical pattern that provides volumetric displacement.
A prescribed number of individual test specimens, which together are considered a reasonable representation of a single type of pedestrian surface and its condition.
An individual pedestrian surface test location.
The mean BPN value for the sample that has been tested and calculated in accordance with Appendix A, regardless of whether the surface was level or on a slope.
Property of a pedestrian surface where the available friction is sufficient to enable a person to traverse that surface without an unreasonable risk of slipping.
A property of a surface having a frictional force-opposing movement of an object across a surface.
When the slip resistance of a sloping surface of known maximum gradient is measured , the SCV is an adjusted SRV, giving a value equivalent to that of the equivalent SRV for a level surface.