This is the 9974th most frequent Japanese word.
路面
Road surface.
Here, '路面' is used to refer to the actual surface of the road that is directly influenced by weather conditions.
路面が凍結しているので、気をつけて運転してください。
The road surface is frozen, so please drive carefully.
In this sentence, '路面' is utilized to discuss the condition and characteristics of the road surface during rainfall.
雨が降ると、路面が滑りやすくなります。
When it rains, the road surface becomes slippery.
Here, '路面' is mentioned as part of a scenario where the quality of a sports car is evaluated on different road surface conditions.