At night, choose a speed compatible with the stretch you can actually see and monitor alertness. Light traffic does not mean the risks have disappeared.
Prepare the vehicle and driver
Clean the windscreen, windows and lights: dirt amplifies halos and makes surroundings harder to read. Adjust vehicle lighting according to load and the handbook. A recent decline in night vision deserves professional advice. Leave rested; after a long day, quiet traffic can increase drowsiness rather than reduce it.
Adapt observation
Look ahead without staring at approaching headlights. Terrain, a bend or a vehicle may conceal a pedestrian without visible clothing. Switch to suitable lights when you risk dazzling another road user. In a lit town, keep looking for people and bicycles; moving between dark and bright surroundings requires adjustment.
Plan an accessible break
Before departure, identify places where you can stop and, if necessary, change driver. Avoid improvising on a dark shoulder. Deteriorating weather can greatly reduce the visibility your lights provide. A shorter journey or leaving the following day may be the better decision. Prepare the phone beforehand and avoid bright screens in the cabin.
Prepare what the lights do not show
Check the windscreen, windows and lens cleanliness before leaving. A dirty window can worsen glare. Adjust interior lighting so instruments remain readable without multiplying light sources. Identify the first rest areas before travelling: darkness can make their access less obvious.
Leaving a lit area
As you approach a dark stretch, slow before losing your bearings. A dark-clothed pedestrian or cyclist may be hard to recognise; do not assume the road is empty. After glare, maintain a cautious path and avoid staring at the approaching vehicle’s lights.
An approaching vehicle’s headlights dazzle you.
Reduce speed if necessary and use road references without looking directly at the lights. Keep the windscreen and lenses clean; plan a break if tiredness or discomfort persists.
What to avoid. More powerful lights do not correct a dirty windscreen or incorrect adjustment.
Practical checks
- Clean windows and lights
- Leave rested and plan breaks
- Avoid dazzling others
- Reduce speed on poorly visible stretches
Common questions
Does automatic lighting remove the need to check?
No. Check the lights actually being used and intervene when necessary.
Should I plan the same driving duration at night and by day?
Your rest matters more than a theoretical duration. Prepare stages that are easier to interrupt and stop if alertness declines.
Official references
This English translation concerns rules and services in France. It does not make them applicable in another country. Local signs, official instructions, vehicle manuals and contracts may specify your situation. Linked references and service pages are in French.
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