Yes, come to think of it, bus drivers are normally pretty good with the indicators too. I was told that HGV drivers are taught to try to keep their vehicles moving slowly rather than come to a dead stop (maybe to save fuel, wear and tear etc), so it is particularly frustrating for them when people don't signal correctly exiting a roundabout, when they are forced to needlessly come to a halt. If the problem is related to training then maybe the driving test needs to be beefed up a bit, or perhaps there should be regular (say every 10 years) re-appraisals. Not necessarily a full practical test, but maybe a variant of the computer based multi choice test. The aim would be to make people more aware of the current regulations and good practice rather than punitively prevent them from driving. Or is the answer some public service TV advertising? That seems to have gone out of fashion in recent years. Issues could include use of mobile phones, tailgating, speeding, lane hogging, and the importance of correct signalling. A more subtle approach would be ideas placement within popular shows, the non signalling, tailgating speedster being shown to be a complete pillock etc.