there not hard to drive safely, but the are loads of blind spots, lower down where cyclists and pedestrians seem to feel the need to sneek past, i mean personally i would stay well away from 20 plus tonne of moving metal, just a thought, why do cyclists feel the need they have to get in front of wagons, why not just wait one minute for it to pull away, like i do....... you speed off close to the wagon, then the wagon catches back up and has to overtake, which gives us cyclists twice the danger.....