What are the rules in regard to moving vehicles with four-way flashers on? I often see vehicles towing trailers (including the police) with four-way flashers on. What does this mean? I learned to drive in the UK where the rules stated it was for the purpose of identifying a stationary vehicle that may be a hazard to other traffic, but here it seems to mean something else.


Auntie’s answer: Once again, I went right to the police with this question to make sure there was no confusion. The answer is that the rules are the same here as in the UK. Four-way flashers do indicate a hazard — whether stationary or moving — to warn other drivers to be careful.

The RCIPS spokesperson clarified that the only police unit that would be towing a trailer on the roads here is the Joint Marine Unit  transporting one of their vessels.