As a horsewoman who has ridden on the road for more years than I care to say, I understand a lot of the problems faced by cyclists on the road and as a driver I try to give them the courtesy I would like to receive. There are idiots on 4 wheels but I try not to be one of them.
However, as a horsewoman who, when riding on the road, strongly resembles a Christmas tree - hi-viz clothing on me and the horse, flashing lights on my arms, etc., etc. - and has passed my Riding Road Safety Certificate, it appals me to see the number of cyclists (and I am not accusing anyone on this forum so don't start) who don't wear any hi-viz clothing or the man I saw the other day who was wearing hi-viz trim on his coat but it was obscured by a huge black rucksack or the man whose only hi-viz was on his shoes. From behind, a motorist can't easily see the feet of a cyclist.
I drive along the A626 Glossop/Marple road several times a day. It's a dangerous road at the best of times but large stretches of it are unlit at night. One evening last winter in the pitch dark I only just managed to avoid hitting a cyclist who pulled out in front of me without looking or signalling. S/he was wearing dark clothing and riding a dark coloured bike WITH NO LIGHTS!!! As it happens, I was pootling along at around 29-30mph (in a 40 mile zone) but even at that speed I would have done him/her a lot of damage if I hadn't seen him or her and been able to take evasive action. I don't know if it applies to cyclists (Do cyclists have insurance?), but I was informed a few years ago by my insurers, NFU, that if my horse and I were involved in an accident, my insurance (including the public liability element thereof), would be invalidated if we were not wearing hi-viz even in daylight and EVEN IF THE ACCIDENT WASN'T OUR FAULT!! Be aware, cyclists, that this may also apply to you.
I don't know about other drivers but I often find bike lights difficult to see, even the flashing ones. I wonder if this is because they are not cleaned regularly? And while we are on the subject of lights, the ones worn on the head of cyclists are brilliant but if you use them would you take care how you adjust them, please? I know from my own experience and discussions with other drivers, that sometimes they can be so badly positioned that they dazzle on-coming traffic.
As I said at the beginning, I'm not tarring all cyclists with the same brush but there are some around who need to have a common sense transplant.