What is indicated by a "route to airport" sign?

A "route to airport" sign specifically provides guidance for drivers on how to reach the nearest airport. This kind of signage is crucial for travelers who may be unfamiliar with the area or for those who are in need of transportation to the airport for flights. Recognizing this sign helps drivers plan their routes effectively and ensures they can navigate to the airport without unnecessary confusion or delays.

Understanding this designation is important for both novice drivers and experienced drivers, as it denotes a vital transportation route that may be relevant for various scenarios, including picking up or dropping off passengers or catching a flight. The other options do not accurately capture the purpose of the sign; they provide information about unrelated subjects such as city areas, vehicle clearance requirements, or gas station locations.