Standard Test Method for Measuring the Frictional Properties of Winter-Contaminated Pavement Surfaces Using an Averaging-Type Spot Measuring Decelerometer

Importancia y uso:

5.1 Knowledge of the frictional properties of a winter-contaminated pavement surface is essential to evaluate the braking effort of ground vehicles or aircraft operating on a pavement surface. The presence of contaminants on a pavement surface will affect the frictional properties of the surface in a manner which is difficult to evaluate by visual observation alone. The frictional properties of a winter-contaminated pavement surface can be characterized using a spot measuring decelerometer which provides a measurement of the surface friction and assists with the evaluation of pavement winter maintenance requirements.

5.2 The measurements produced by this test method should not be used as the sole criteria to determine pavement winter maintenance requirements. The measurements would normally be combined with visual and other observations to provide a more complete analysis of the pavement surface conditions. A certain amount of discretion is required on the part of the operator, as this test method provides only a “spot” measurement of the surface condition. The objective of the operator is to identify areas of the winter-contaminated pavement surface which may have lower friction and then obtain friction measurements in those areas. This makes the test method somewhat conservative by nature in comparison to the actual friction potential.

5.3 The measurements produced by this test method are dependent on the test vehicle parameters and on the braking technique of the vehicle operator.

Subcomité:

E17.21

Referida por:

G0115-24

Volúmen:

04.03

Número ICS:

13.020.40 (Pollution, pollution control and conservation)

Palabras clave:

airport runway friction; braking; deceleration; decelerometer; tire pavement friction; winter conditions;