Where I used to live closer to London, and I'm not sure this is a thing nationwide, designated boxes for cyclists were implemented a while back right in front of the traffic lights in order for them to take off first. However, when there was a long line of cars as there sometimes is, the car caught as the lights change would often unintentionally have to stop in the box. It wasn't unusual for the "enraged" cyclist of a certain persuasion to come alongside that car and remonstrate with them for having the audacity to stop there often with a thump on the bonnet. I know of one motorist who wound down the window to try and explain that only to be covered in spittle from the cyclist, oh yes some of them are lovely people I know there will be the thrusting equivalent behind the wheel, just as I know that there are two breeds of cyclists, the perfectly normal ones who are nothing like that and those who are pulsating with an overload of testosterone and think the road belongs solely to them.