What area does a "level crossing with barrier" primarily affect?

The "level crossing with barrier" primarily affects vehicle movements at the crossing because the barrier is designed to control and regulate the flow of vehicles when a train is approaching. At a level crossing, barriers are lowered to prevent vehicles from entering the crossing, ensuring safety by allowing trains to pass without obstruction. This setup is crucial in preventing accidents, as it clearly indicates to drivers when they must stop and wait for the train to cross.

While it may influence human pedestrian traffic and access for emergency vehicles indirectly, the primary function of the barrier is to manage and protect vehicle movements specifically at the crossing. This is vital to maintaining safety and order, particularly in high-traffic areas where the potential for accidents increases significantly without proper regulation.