Road slipperiness

It is a result of snow, ice, water, loose material and the texture of the road surface on the traction produced by the wheels of a vehicle.

Public works agencies spend a sizeable portion of their budget measuring and reducing road slipperiness.

[2] Maintenance activities affecting slipperiness include drainage repair, snow removal and street sweeping.

[1] Measurement of skidding resistance is not yet universally harmononised despite a number of attempts such as FEHRL's HERMES project.

[4] Contributions to this were made through the FP7 Tyrosafe project[5] which aims to raise awareness, to coordinate and prepare for European harmonisation and to optimise the assessment and management of essential tyre/road interaction parameters in order to increase safety and support greening of road transport.

Storm drains may be installed at regular intervals and modern paving materials are designed to provide high friction in most conditions.

"Volume 7" of the UK Design Manual for Roads and Bridges (DMRB), specifically HD 37/99: Section 5: Part 2: Chapter 11.

A surface friction tester, used to measure road slipperiness
Anchorage Police Department recruits carrying out an emergency vehicle operations training course (including training on how to handle skidding) at Joint Base Elmendorf-Richardson in Anchorage, Alaska using modified Ford Crown Victoria Police Interceptors
Dutch newsreel about the anti-skid training school of Rob Slotemaker