I just spend several days updating all the known redlight and speed cameras in Calgay Alberta.
I have retrieved all of the locations form the Calgary Police website, and took the time to record them on this website.
I think they are most accruate, although a couple of them I didn't find them on the satalite image, so just put them in the middle of the intersection.
I have loaded this information on my Garmin, and it works great. Hasn't missed a one yet. Thanks for the website, and the ability to make this happen for all.