Do measurers typically wear vests saying "Race Measurement in Progress" or identify themselves in other ways that might let the public know why they're riding the way they are? I measured on some fairly heavily travelled streets, and although it was very early in the morning, I was somewhat uncomfortable cutting across "S" curves knowing I was "blind" to oncoming traffic. I considered asking the local police district to assign an officer to escort me. Also, I got some strange looks from other bikers and runners when I made some unexpected, but necessary for measurement, moves. In the end it was really no problem. The only thing I might do differently in the future is to advise potential authorities ahead of time, so if they receive comments, they can explain. Actually, the police probably would have been willing to escort me; they weren't too busy on an early Saturday morning and they would eventually be supplying personnel to be on the route on race day for the race I was measuring.