What should you do if another vehicle is backing up unexpectedly on the airside?

When encountering a situation where another vehicle is backing up unexpectedly on the airside, the priority should always be safety and minimizing risk to all parties involved. Stopping and providing a clear path for the backing vehicle is the safest and most prudent response. This action allows the other driver to maneuver without the added pressure or distraction of another vehicle nearby, which can create confusion and increase the likelihood of an accident.

By stopping, you give yourself time to assess the situation accurately. It also helps in ensuring that you do not obstruct the backing vehicle, reducing the chance of a collision or damage to either vehicle. This response aligns with the best practices for operating in airside locations, where caution and adherence to protocols are critical for safe operations.

Options that suggest honking the horn or speeding up may create additional hazards or distractions, potentially leading to dangerous situations. Waiting for them to back up completely might unnecessarily delay your actions, where creating an immediate safe path would be more beneficial. Thus, the best course of action in this scenario is to stop and provide a clear path for the other vehicle.