Pit stop and Rest area

Pit stop noun - A stop during an automobile trip for rest and refreshment.

Rest area and pit stop are semantically related. In some cases you can replace phrase "Rest area" with "Pit stop", this phrases are similar.

Rest area noun - Designated paved area beside a main road where cars can stop temporarily.

Pit stop and rest area are semantically related. You can use "Pit stop" instead a noun phrase "Rest area".