In this case yes, but the ones I see closer to home are the hex shape in a different location than the loop... I assume the hex is the latest "invention" and try to trigger that, but sometimes nothing works and I don't know if I should have used the loop or it just won't trigger for a bike.

BTW I mentioned a video sensor near my house... it needs high contrast to trigger it... If I wear dark clothing on a cloudy day... no trigger. Bright clothing on a sunny day, no problem, I have a green by the time I hit the limit line. No light at night... no trigger. Use the bright halogen headlight at night, triggers every time and I roll right through.

So it is all a matter of playing the darn things just right, be they loops, hexes or camera, or sometimes a motorist... sometimes they don't seem to get it though and just give you odd looks when you motion them forward. Got a great big smile the other morning when I motioned this young lady forward; she got it right away, and grinned to boot. I returned the smile all the way through the intersection.