sussex2 wrote:Horse wrote:Ah, 'audible warning devices'!
When you hear the Bang! as it gets run over, jump for the verge.
I think it is designed to be placed on top of the vehicle - the reason being to avoid having to walk back 50metres to place it in the road.
See the image I posted of an IPV before being hit, they are 4m or higher, with strobes visible from -literally - a mile away.
Ok, positive point, being at roof height may help them be seen, but don't rely on it. My unofficial advice would be to lift your boot lid / tailgate and stick it (assuming magnetic) on there. Two reasons: seen over other vehicles; visual cue that your vehicle is stopped.
Next: get away from the vehicle. If there's a barrier, get behind it, ideally 2m back to allow for deformation if impacted. Stand where you can see the rear of your vehicle, if it's hit then you probably don't want to be run over by both the errant vehicle and - insult to injury - your own too.