Developer, cycle/run and other non regulation signage

There has been a huge number of unauthorised signage put up in a Chinnor and surrounding areas from developers, events organisers and people erecting ad-hoc speed signs. These ruin the street scene and are a distraction for highway users. I contacted my local parish council and they recommended i comment here. They have bern removing them but developers especially are re-erecting them and placing them ever higher on the existing street posts. Some kind of abatement order would be needed to deter them from this practice