For those that dont know, in summary, Many traffic lights work by the presence of an induction loop underneath the road. A large mass of metal (a car) triggers the loop and the lights soon go green (hopefully). Of course our problem is that sometimes bikes are not big enough to trigger the lights. There have been other posts about getting off and pressing the pedestrian buttons, going through red etc. Question for comment: Are Rare Earth Magnets place don the bike any good for the purpose of triggering traffic signals?