We went to Manchester today and walking from the station to where we intended to get to I noticed that if it was safe to do so the cyclists ignored red lights. Coming from a more rural area into local villages and a small, regional city I don't see that many red light jumpers. Also, about 10 years ago when I last went to Manchester city centre I never noticed this.
Is RLJ more common in big city centres vs towns and small cities?
I've seen more RLJs in the time it takes to eat my breakfast at Bristol YHA, or walk up Deansgate in Manchester, than I have in a lifetime living in a provincial market town in East Anglia.
This surprises me not at all. If I want to get out of the built up area and cycle free of traffic lights, I can be out of town in about 1.5 miles, under 10 minutes, but on the other hand, if I lived in central Manchester I might not have the range to get out of the city at all in a single day, and so virtually my entire cycling career would consist of stop-start riding. That'd be enough to make me give up cycling altogether, never mind jump red lights.
I've tried repeatedly, and largely failed, to draw cyclists attention to the fact that stopping a bike wastes energy, in fact I've even been lampooned by a cyclist for being an idiot who can't see that if you're stationary you're not using any energy at all.
The point is that a cyclist (and any other moving mass) has kinetic energy, and when you stop, the brakes waste that energy by converting it into heat. All that energy came from your leg muscles in the first place, so when you resume moving it has to be replaced by your legs too: stop more often, waste more energy. Is that a lot? Well, a lot is a subjective term, but if you stop every 100m from 12mph that's roughly doubling your energy use.
Twice as much effort to get anywhere.
The corollary of all this is that cyclists will avoid stopping. They often aren't consciously aware that they're averse to stopping, and even less aware the reason why, but they are. And the more often they're forced to stop, the more likely they are to get fed up with doing it.