Dont seem to be much "buffer" in that buffer trailer, the same sort of thing are also in play in Danish streets as our drivers are just as ignorant as other ignorant drivers around the world.
Funny it look like that big yellow SOB are just cardboard,,,, but in the old days stuntmen also used that in stead of airbags,,,,,,, need to cut off corners of boxes.
One hit by DUI idiot.
One graced by another idiot.
I think in general the trailer types are used for the most streets, the one on the top i think are a heavier car and truck stop for use on motorways where trucks do 80 and cars 110/130 km/h
I read Denmark are on the fore front with these sign cars/trailers or maybe just the use of them, could not read article due to my ad blocker.
These sign cars / trailers will of course sync up automatic, for a more KAPOW in your face alert and their pattern can be combined as you like / need.
Actually i just read these cars / trailers also have GPS and modem so Danish traffic authorities can see their deployment and what they signal,,,,,,, smart fellows those Danes
Look like our American friends would be wise to buy / copy Danish on this matter.