I agree that snaking can occur at lower speeds than whatever the legal limit is for that road – I had this problem with a Maxi and a relatively light (by today's standards) caravan. The cure then was to drive sufficiently slow that snaking didn't happen – 45mph as against 50mph. And let's face it, a drop of 5mph isn't going to make that much difference to the overall journey time. Larger, ie heavier, cars, and even though I now have a heavier caravan, and I don't have the same problem.
I also think that there are a lot of untrained drivers who do not know what they are doing, or what the requirements are, eg on the last holiday, we met a caravan tower who said that he didn't need towing mirrors as his car mirrors were wide enough. Somehow, I doubt that will pass the Police inspection team if he gets pulled over, but that's his problem, not mine. And before anyone tells me off for that attitude, it's been my experience that a lot of people don't take kindly to being told they are wrong, so now I just leave people to their own devices.
Newer caravan towers may have to pass an additional driving test before they can legally tow – it all depends on how long it is since they passed their driving test, and the overall maximum weight of the car/caravan combination. With modern cars and caravans it is relatively easy for the 3500Kg limit for a modern class B license to be reached, my own modest combination of a Toyota Avensis along with a Bailey Hunterlite isn't that far off it when fully loaded. But having to pass a test should slowly show an improvement in towing standards leaving only those old reprobates such as myself who, according to some people, shouldn't even be on the road, to show how it shouldn't be done.
I tow both a caravan, and a small trailer (not at the same time), and actually find it much easier reversing the caravan, due, I think, to the longer distance to the caravan axle. Bragging time coming up! I once managed to reverse the small caravan that we had then, through a 90 degree turn and into a driveway no more than 9 inches wider than the caravan – using the mirrors only! I've never done it since!
In respect of rolling road blocks, may I point out that a car towing a trailer is limited to 50mph on single carriageways, as are fully loaded HGV's and buses of any description. Would these people complaining about rolling road blocks say the same about HGV's and buses?
Regards,
Peter G. Shaw