it depends on what type of road it is. if its a motorway or duel carriage way you will need permission of the highways agency. this is impossible to get for joe bloggs. as you will need a licence, be a regierstied pest control firm, have traffic managment in place, have hiviz clothing, van all hivized up with flashing lights etc. so it aint easy. oh did i say this is what im do for the firm i work for
when i get round to it i post some pics