For example, many cyclists and motorists believe that the safest road position for cyclists is close to the curb. In reality; this position is often the most dangerous.
Roadusers.net recommends 'How to be a better cyclist' from the Institute of Advanced Motorists; probably the most authoritative guide on the subject (It is written by John Franklin; author of Cyclecraft which is UK government recommended).
Here are some quotes:
"The aims of good positioning are to ride where you can best see and be seen, where you deter or prevent others from putting you at risk ...." (Page 38).
"Do not slavishly ride close to the kerb where other drivers may not easily notice you. In any event, never ride closer than 0.5m to the road edge as this will leave you with insufficient 'escape room' in an emergency" (Page 38).
p72: Cycle Lanes: ".... motorists often pass cyclists closer and faster where there is a cycle lane than where there isn't...." (this is backed up by research from the University of Leeds' Institute for Transport Studies).
".... using a cycle lane to bypass queuing traffic is just a form of filtering next to the curb, which is the most dangerous place to filter".
" Position yourself as if the lane is not there ...".
Cycle lanes less than 1.5 metres wide (HM Government recommends 2 metres, or 1.5 metres as a minimum!) create a danger to cyclists (and that's probably the majority of such lanes in London).
If all road users respected the Highway Code we would not need any cycle lanes at all. I am writing in the hope that both cyclists (so they are safer) and motorists (so that they understand) will read this.