On topic for bikes, given that some permanent lights are activated by induction circuits that a bike will not trigger, you can go through them provided it is safe to do so.
Exactly what I was referring to earlier – slightly disappointed that nobody got me to expand on the issue. Happens at a set I have to go through on the way to or from my house – the right turn I normally make coming home doesn't sense my bike (again). I've got them to adjust it several times, but have now given up – not sure if it goes out of adjustment or somebody regularly comes along and adjusts it back down to prevent false alarms.
Place your bike lengthways along the loop (not at 90 degrees to it) and, hey presto, it has the same effect as a car.
Not really that useful with my carbon frame (not that I see why I should have to do that anyway). It should sense my rims, but if it doesn't I don't think there's a lot I can do (it's never ever sensed my TT bike with carbon frame and rims!) Anyway, given it's my regular lights I know the sequence. After it goes red for straight ahead, the next phase is right turn if it's sensed me – if it goes green for the road I'm turning into without giving me a phase, then I know it's not sensed me so is faulty, and I'll go during that phase (obviously giving way to cars who are on green) perfectly safely.