people whom drive straight onto motorway from slip road without attempting to adjust to fit in a gap. many a lorry had to break for change sudden lane! indicator seemingly giving a god right to drive straight on. second rant. Car’s van’s approaching a slip lane to left or exit dual carriageway ..staying in outside lane and when less than 400 yards or so form exit start indicating and moving into any ‘gap’ inlet lane to get in front of those whom went in left lane ready to leave (as your supposed to do) creating braking and danger to vehicles in left lane! need cameras. put up and a rule to have anybody going off to left to be in LEFT lane before countdown markers! grr. A12 has this at almost every junction.