A warning sign for "low-flying aircrafts or sudden aircraft noise" is likely to be found near which type of location?

A warning sign for "low-flying aircrafts or sudden aircraft noise" is commonly found near an airport because airports are the primary locations where aircraft are taking off, landing, or flying at low altitudes. This sign serves as a caution for drivers and pedestrians about the potential for low-flying aircraft overhead, which can pose safety risks particularly in areas where aircraft traffic is frequent and may be unexpected for those unfamiliar with the vicinity. The proximity to an airport enhances the likelihood of encountering sudden aircraft noise, making it essential to be alert in such locations.

In contrast, other locations such as construction sites, highways, or residential areas do not typically have the same level of air traffic. While construction sites may sometimes be near flight paths, they generally do not have dedicated warnings for low-flying aircraft. Highways may not warrant such signs unless they are adjacent to an airport, and residential areas are more focused on exposure to noise from vehicles or local disturbances rather than air traffic. Therefore, proximity to an airport is the most logical context for this specific warning sign.