Rumble Strip Types
There are four types of shoulder rumble strips. They differ primarily in how they are installed, their shape and size, and the amount of noise and vibration produced:
Highway agencies often use all types of shoulder rumble strips, depending on the need and the material. The groove pattern can be installed intermittently or continuously. The groove pattern, depth, width, shape, and spacing may also change with the road agency.
Summary of selected State highway agency shoulder rumble strip dimensions based on their standard drawings [PDF, 1KB].
What Do the Experts Say?
Please note: This link will take you to a QuickTime movie of John Watson - it is a large file (2.3Mb) and may take a long time to download, depending on your modem speed and Internet traffic. You will also need to have QuickTime installed on your computer to view the movie.
John Watson, New York State DOT, gives a breakdown of the various rumble strip types and installation methods.
You will need the Adobe Acrobat Reader to view the PDFs on this page.
