As I was riding around SW Washington today I discovered a pile of new tar snakes....Washougal area, Amboy, a few other places. It made me wonder why to various DOT's don't simply throw some course sand or small gravel on them when they lay them down? Obviously there's a minor added expense to doing this, but the safety gain has got to be well worth it. Then I thought why doesn't the AMA or some of the other big motorcycle advocates lobby the various DOT's to do this? Have they ever tried? Anybody know anything about the history of tar snakes?