If you do not intend to overtake, when must you keep a safety distance of at least 100 metres from the vehicle travelling in front?
Traffic rules
Explanation
To drive safely in a **tunnel**, it is essential to maintain a **safety distance of at least 100 meters** from the vehicle in front. This is because tunnels are enclosed spaces where visibility conditions may be reduced and emergency maneuvers, such as sudden braking, can be more complicated. Maintaining this distance allows for timely reaction to any unforeseen events and prevents collisions in case of unexpected braking. Additionally, in tunnels, ventilation and lighting may not be optimal, making it even more important to maintain an adequate distance to ensure the safety of all drivers.
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