GOVERNMENT Shoulder Rumble Strips  Cut Specifications  Layout: Continuous vs. Skip  Traffic Protection  Offset from the Edgeline  Clean-Up Specifications  Depth and Width Tolerances  Fog Seal Centerline and Secondary Road Rumble Strips  Secondary Roads  Centerline Rumble Strips  Full Lane Rumble Strips Project Designs and Specifications  Retrofit vs. Resurfacing  Cost Control  Traffic Protection  Clean-Up Specifications  TRB Paper Bicycles and Rumble Strips  Bicycle-Friendly Policies  Bicycle-Friendly: Alaska Research and Publications  Trucks and Rumble Strips  Drift-Off: The Road Crashes  Gallup Poll on Drowsy Driving  Rumble Strip Effectiveness  Cost and Benefits Useful Links  State DOT Agencies About SPT  About SPT  Officers  SPT History Photo Gallery Video Gallery Contractor Section Home		Photos Edgeline Rumble Strips Machinery in progress Wet line reflectivity enhanced by rumble strips Rain Bright Edge Line TMA Vehicle Slow moving operation Loadmore Sweeper Centerline Rumble Strips Centerline Cutting Centerline Cutting, with clean-up Milling over Rolled-in Rumble Strips Fog Sealing Machinery in operation