im a traffic signal tech when you find an intersection were the loops will not pick up a motorcyle call your local traffic engineering dept and they should adjust the sensitivity of the loop detector. in my town as i ride through and find loops that will not pick up my sporty i stop and fix them. somecities are going to video detection and they will pick up everything including pedestrirans. hope this helps

 

thanks! I will call them!

 

if you just look for the lines and park your wheel right in the center line where you will see all 3 or 4 lines crossing it'll pick it up...I go cycling and it picks up just a bicycle tire.