There are quite a few cars in lane one doing 50mph, thereby forcing all the HGVs into lane two, the upshot of which is that the entire motorway is limited to 56 mph. There seem to be just sufficient cars in lane one to make it not worth the HGV driver's while to pull in, even after they've taken quite a considerable time to get past the cars at a net speed of 5 mph. SO, a solid mass of HGVs in lane two and a motley collection of cars in lane one. Very odd.
Is this specific to one particular bit of the M54 or has anybody seen it elsewhere?