What are automobile drivers forbidden to cross over?

Drivers are forbidden to cross over military convoys and formations due to the need to ensure the safety and security of military personnel and equipment. Military vehicles often have specific protocols and priorities on the road, and crossing over these formations can jeopardize both civilian and military safety. It's crucial for drivers to respect these formations, allowing them to maintain their operational integrity and avoid potential accidents.

Pedestrian walkways, traffic signals, and railroad tracks are also vital aspects of road safety and traffic regulation, and while drivers must navigate these properly, the specific prohibition from crossing military formations is to address unique operational protocols that involve national security and military readiness.