Skid number

Skid number means the frictional resistance of a pavement measured in accordance with ASTM E274-70 (incorporated by reference, see 571.5) at 40 mph, omitting water delivery as specified in paragraphs 7.1 and 7.2 of that method.

Source

49 CFR § 571.122a


Scoping language

None
Is this correct? or