Red light jumping statistics

I think rich_cb was alluding to the rate e.g. there are few cyclists compared to cars but they hit people at red lights far more often than motorists.  That then has a bearing on how we design our infra (or "should we crack down on cyclists at lights"?)  I think someone else (Awavey? apologies if I have the wrong poster, can't recall) mentioned that there was some data on that.  That would be good to see.  I suspect the issue is that just a bald number (which is going to be small for cyclist / pedestrian collisions at lights compared to the motor vehicle one) won't help much with the all important "why"?  (e.g. if it was 10 incidents / year Sam the singlespeed scorcher and scofflaw in Southhampton could be causing a fair fraction of those... or maybe there are two or three really badly designed junctions in the midlands etc.)

Although of course that data only shows the ones that were caught!
No, Lancashire Constabulary routinely ignores indisputable video evidence of red light offences by drivers, and they're presumably not the only bad cops who do this. So the statistics are worthless, and just show the ones the police didn't just ignore away

My statistical nerves are twitching at that 'Most cyclists are angels' section. Just because in 84% of observations the signals were observed, doesn't mean that you can conclude that 84%, or even the majority, of cyclists don't ride through red lights. That would only be true if every individual had to either always go through them or always stop. If a different 16% went through each red light, then by the time they reached the third set about half of them would have done it.

London and probably other cities is a different beast. A colleague who cycles to work commented some time back how infuriating many London cyclists are for red light jumping and generally being dicks. I'm trying to cycle further in myself and have found the same while figuring out the route. Oddly also seeing a tendency it seems for some to cycle through a junction with lights for cyclists and stop in the junction. The lights change and I cycle past them because the can't see them 🤦🏼‍♂️🤷🏼‍♂️

Adam Sutton wrote:

London and probably other cities is a different beast.

I wonder if this is due to sheer volume of vehicle traffic and the amount of risk-taking by London drivers in an attempt to make progress in a car. Traffic light grands prix are the norm, ASLs occupied by vehicles are the norm, and crossing multi-lane roads while traffic merges is common. Personally, I will RLJ if the ASL is occupied, there are no pedestrians crossing, and the way is clear, because it's safer. I don't really care how others perceive a behaviour that poses no risk to anyone else but increases my safety.

Now and then, I see other riders RLJ (or ignore a zebra) while a pedestrian is crossing. They might have broken the same rule as me (and the drivers of cars in the ASL) but I don't see any equivalence, as they've endangered a more vulnerable road user.

Bear in mind this was me figuring the route out on Sundays, so not so much traffic. Majority of instances were along CS3 with no traffic to contend with, often with lights that give priority to cyclists that do wait. A lot was through pedestrian crossings in tourist areas, one near Tower of London where a woman crossing passed comment as someone cycled through on red as she crossed.

Adam Sutton wrote:

...often with lights that give priority to cyclists that do wait. ...

Do you mean an advanced green for cyclists?  Or do you mean lights with detectors which will switch to a cyclist phase as soon as they detect them?  Otherwise don't all lights give priority to anyone who waits until they're green - that being their purpose?