I'm hoping some of the smart engineering folks will be able to help me out. I ride a bike to and from work, and have just started riding again after these last two months of freezing temps.

I've long encountered a problem on my commute - demand actuated signaling. I guess I'm not metallic or big enough to trip the induction loops.

Most of bike routes are modernized to pick up all sorts of vehicles including skateboards, but the major avenues have the old school dipole configurations in turn lanes. And none of my convenient routes home are modernized.

As a result I have to make very dangerous left hand turn across boulevards on a red arrow, but with green thru.

Now before anyone calls me a lawbreaker, I'm not. The state of Illinois permits any bicyclist or motorcyclist to treat a left turn red as a yield if they have reason to believe the light arrow won't change to green. But that doesn't mean it's safe so I'm wondering if there's a solution.

Ive heard magnets will activate the loops, But any sort of strong magnet affixed is out of the question. The roads are double decked with a ton of steel expansion joints, plus I cross a bridge with metal grating.

Is there something metal I can attach?