How Highway Authorities work against driving large vehicles

Top of Barnetby, where the A18, A180, M180 and A15 meet, they’ve just ( today in fact!!) installed a visual barrier, “to slow traffic down entering the roundabout”.

It’d be alright, but the A18 junction they’ve installed it on is a pig to get out of anyway… The A15 junction is the one where traffic needs to be slowed down…