Centerline Rumble Strips Survey

Rumble strips are commonly used on shoulders of roads, but since 1994 there has been a limited use of rumble strips on the centerline of highways. An analysis of these CLRS, done by an insurance industry group, the Insurance Institute for Highway Safety in September 2003, (see study) determined that these CLRS reduced crashes and concluded, "consideration should be given to installing centerline rumble strips more widely on rural two-lane roads to reduce the risk of frontal and opposing direction sideswipe crashes."

We have put together a survey to gather information on how this issue affects cyclists. Read more about CLRS and take the survey at https://bikesiliconvalley.org/clrs/survey.