I've never noticed my bike being able to trip an induction loop. I believe DOTs, Highway Departments, what have you, design them so they're sensitive enough for a motorcycle to trip, but nothing much less than that, otherwise shopping carts, bicycles, etc. would keep tripping them. Railroads use them to keep track of where their trains are.
Originally Posted by
BobbyG
Quite a few years ago the city of Colorado Springs went to an optical system, and it works pretty well for cyclists.
This kinda hurts my heart. Nikola Tesla would not approve.