In Theory Yes, in reality NO, Reason in my own experience, all loads are different in the way the move although strapped, for instance, Steel, if this HGV came to a stop this way the load would go straight through the headboard of the trailer and kill the driver, some firms will not fit Steel Head boards ( Front of the trailer for Weight reasons) Refrigerated Hanging meat's, these trailers have the meat ( Cow Sides etc ) Hanging from a rail fitted to the alloy roof of the Trailer, on this type of braking the load would swing forward and would affect the braking, Tanks & their cargo, inside tank trailers they now fit baffles to stop the SWAY of the load either side ways or forward, again on this type of braking would cause the load to SLAP ( Forward / Backward motion ) depending on the type of load that is within the trailer, the driver drives to his experience in carrying that load, Containers that you see a lot of, the only knowledge the driver has of that load is the paper work, the container is "Sealed" & can only in some cases be opened by the customer, a lot of these Tail end Pile up's are driving too close " thanks to the EU Rules of 56 mph, the ordinary motorist can only see about 4 cars in front in compared to a HGV that can see about 20 cars in front, meaning the car does not have the time to stop so slaps on, that's how the Motorway pile up starts, there should not be any accidents on Motorways, accidents are caused, & caused by driving too close too fast & Inexperienced drivers, there are no right hand turns, no roundabouts, no traffic lights, & the traffic goes one way, so how the hell do they happen?