In the context of driving, what behavior should be avoided when approaching a low bridge?

When approaching a low bridge, it is crucial to avoid speeding without checking the vehicle height. This behavior is particularly dangerous because low bridges can pose a significant risk to taller vehicles such as trucks and buses. If a driver does not take the time to assess whether their vehicle can safely clear the bridge, they may inadvertently cause an accident or damage to both their vehicle and the bridge itself.

Driving at high speed while approaching such an obstruction also reduces the driver's ability to react in time should they realize the vehicle exceeds the safe height. Additionally, speeding limits the time available to make calculated decisions, such as whether to take an alternative route or to stop safely before encountering the low bridge.

In contrast, checking for pedestrians, changing lanes, or ensuring headlights are on are generally prudent behaviors but do not address the specific risks associated with low bridges. These activities could potentially distract from the critical task of ensuring clearance under the bridge. Therefore, prioritizing awareness of vehicle height and maintaining a safe speed is vital for safe navigation in areas where low bridges exist.