What must you remember in the case of bus doors?

In the context of bus doors, the selected combination emphasizes key safety aspects required by German traffic regulations.

1. The requirement for door areas to remain free while driving is crucial for preventing accidents. It ensures that passengers can enter and exit safely, without risk of being hit by the bus or other vehicles.

2. The regulation that bus drivers may only set off when all doors are completely closed is fundamental. This rule protects passengers by ensuring that no one is in the process of boarding or disembarking while the bus is in motion.

However, the third option regarding opening doors while driving, even in summer, is incorrect. This practice poses a serious safety risk, as it could lead to accidents involving passengers or obstruct traffic.

Understanding these rules is essential for ensuring the safety of all road users and adhering to traffic laws.