Encyclopedia
Black ice
Black ice - a type of winter slipperiness formed by freezing moisture present on the road surface due to a sudden drop in air temperature
Source: ORDER OF ROSAVTODOR dated 26.11.2009 No. 499-r
"ON THE ISSUANCE AND APPLICATION OF ODМ 218.8.001-2009 "METHODICAL RECOMMENDATIONS FOR SPECIALIZED HYDROMETEOROLOGICAL SUPPORT OF ROAD MANAGEMENT"