". One problem caused by this bunching is that, with long lines of lorries travelling "nose to tail", in the event of an accident, you are now more likely to get a multiple pile-up than you were when they were more strung out. QUOTE]
The speed limits and keeping your distance are 2 different things. But considering you can drive nearer to a vehicle driving at 56mph than at 70mph, it should mean more room for all, allied to the fact you no longer get lorries traveling into a traffic que at 70mph, which is pretty dangerous.
Lorries were only ever allowed to do 60mph on motorways anyway, so the 4mph reduction in that is not massive.