I have to agree with Mike C and a driver embedding himself in the back of a truck just before christmas is only a loss to his kids. If the truck had had no lights, blue lights, spotty coloured lights would he have seen it?
Driving in Europe where the laws are less relaxed and you can buy a flashing blue lamp only makes the ■■■■■ stand out more, nearly every truck in Turkey has a blue flashing lamp. Even in France half the cars and motorbikes driving round the peripherique have these lights. When they get killed it just causes another delay while they pick the bits up.
I disagree with all the orange lights as everyone seems to use them. It would be better to fit all Asda and Morrison trucks with flashing orange lamps because they drive slower than a crane from Ainscough or Hewden Stewart.
Why do all mobile vehicles need a flashing lamp, unless they are a tractor or tyrefitter / breakdown truck.