Martin,if you ever get a chance go to "thamesport" isle of grain kent(easy to get to) and in there container depot,a crane is fed infomation to pick up container,then arrives at docking point(after driver has put in container details)then a human(believe it or not) radio controls container onto lorry.2 things to say,i have only known thamesport to shut once in 12 years due to high winds,and secondly if felixstowe past wind "STOP".I dont know why ! but other container drivers will tell you.And on one last point about 4/5 years ago whilst a containership was trying to dock(high winds) it did ? it landed on the quey knocking out two cranes(aprox 60/70 high)oop`s,all infomation was in the local newspaper.Are 4 locking pins enough !! no comment