That does work most of the time, but I've found that once they pave over it with more asphalt, it becomes difficult to tell where the edge once was. I have fou

That does work most of the time, but I've found that once they pave over it with more asphalt, it becomes difficult to tell where the edge once was. I have found that traffic lights with camera based detectors work pretty well in terms of detecting cyclists (without the paving over problem that loop detectors have).