Road rules / 🇬🇧 general
When may you use hazard warning lights while driving on a motorway?
✓ ANSWER
Briefly, to warn drivers behind you of an obstruction or queue ahead
On motorways and unrestricted dual carriageways, hazard lights may be flashed briefly to warn following traffic of a hazard ahead.
All the options
- ✓Briefly, to warn drivers behind you of an obstruction or queue ahead
- ✗Whenever you are travelling below 40 mph
- ✗While you are being towed by another vehicle
- ✗When you intend to change lanes quickly
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