Which stage of a rainstorm can make pavement especially slippery?

Correct answer: C – Just after the rain begins
Pavement can become especially slippery just after rain begins because water mixes with oil left on the road. Continued rain may eventually wash much of that oil away. Reduce your speed on wet pavement because traction is lower and stopping can require more distance.
Source: New York State Commercial Driver’s Manual — § 2.6.2, “Matching Speed to the Road Surface”, New York State Driver’s Manual — Ch. 10, “Driving in Rain, Fog, or Snow”


