Cars I'm presuming Gaz.
One of the best images currently out there to try and inform cyclists was produced by TfL.
Cars aside, all the other regulatory shite from TfL, DVSA, etc is bollocks which could reduce cyclist hazards is education. If "they" don't know how to drive a class of vehicle then the fools should either stay back or make sure they can be physically seen by the driver. The larger the vehicle the greater the hazard (more and worse blind spots - I'd guess you teach your pupils about those).......
And yes, you are entirely correct. There are indeed some excellent cyclists out there, just that IMO they're outnumbered by the foolish and impatient by a wide margin.......