A shoulder rumble strip is a longitudinal design feature installed on a paved roadway shoulder near the travel lane. It is made of a series of indented or raised elements intended to alert inattentive drivers through vibration and sound that their vehicles have left the travel lane. On divided highways, they are typically installed on the median side of the roadway as well as on the outside (right) shoulder. This Technical Advisory contains information on state-of-the-practice for the design and installation of shoulder rumble strips and provides guidelines for their use on appropriate rural segments of the National Highway System (NHS). This Technical Advisory supersedes the information on shoulder rumble strips contained in Attachment 1, Typical Shoulder Treatments, of Technical Advisory T 5040.29, Paved Shoulders, dated February 2, 1990. (Author/publisher)
Samenvatting