iPhone GPS programmed to stick to nearby roads
I have been using this app called +3 to record my rides. Since about iOS 5, i noticed the GPS on the phone started to try to stick to roads when I was going offroad. When I get more than 300 feet away from the road, the GPS suddenly corrects its position and starts to show correctly where I am. When I ride parallel to the road about 200 feet away, the GSP shows me right on the road for the whole time. It seems to me that whoever introduced this "feature" decided to not trust the GPS and let the software decide where I am instead. It seems quite irritating to me as I can't quite tell my route once recorded inaccurately. I have observed the behavior with both my iPhone 4s and 5 with no difference. Has someone else experienced this with their phone?
iOS 6