When may you use hazard warning lights while you’re driving?

Question topic: Car , Road and traffic signs

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A: Instead of sounding the horn in a built-up area between 11.30 pm and 7.00 am

B: On a motorway or unrestricted dual carriageway, to warn of a hazard ahead

C: On rural routes, after a sign warning of animals

D: On the approach to toucan crossings, where cyclists are waiting to cross

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