When the road was recently rebuilt, the state department of transportation incorporated a new feature they are testing called centerline rumble strips.
en.wikipedia.org A number of community concerns were addressed, such as placement of canopies for dark sky restrictions for a local observatory, off-highway location, rumble strips, signage, and mitigation of traffic congestion.
en.wikipedia.org A rumble strip before stations is a reminder that they need to resume control.
en.wikipedia.org Drivers errors, including lane drifting, late braking, and touching or crossing the rumble strip or lane line, were calculated for each condition and compared.
www.telegraph.co.uk In both these systems, the driver is warned of unintentional lane departures by an audible rumble strip sound generated on the side of the vehicle drifting out of the lane.
en.wikipedia.org