<P> Rumble strips , also known as sleeper lines , alert strips , audible lines , sleepy bumps , wake up calls , growlers , drift lines , and drunk bumps , are a road safety feature to alert inattentive drivers of potential danger , by causing a tactile vibration and audible rumbling transmitted through the wheels into the vehicle interior . A rumble strip is applied along the direction of travel following an edgeline or centerline , to alert drivers when they drift from their lane . Rumble strips may also be installed in a series across the direction of travel , to warn drivers of a stop or slowdown ahead , or of an approaching danger spot . </P>
<P> Rumble strips , also known as sleeper lines , alert strips , audible lines , sleepy bumps , wake up calls , growlers , drift lines , and drunk bumps , are a road safety feature to alert inattentive drivers of potential danger , by causing a tactile vibration and audible rumbling transmitted through the wheels into the vehicle interior . A rumble strip is applied along the direction of travel following an edgeline or centerline , to alert drivers when they drift from their lane . Rumble strips may also be installed in a series across the direction of travel , to warn drivers of a stop or slowdown ahead , or of an approaching danger spot . </P>
road safety feature by means of change in tyre noise
road safety feature by means of change in tyre noise
Rumble strips , also known as sleeper lines , alert strips , audible lines , sleepy bumps , wake up calls , growlers , drift lines , and drunk bumps
Rumble strips , also known as sleeper lines , alert strips , audible lines , sleepy bumps , wake up calls , growlers , drift lines , and drunk bumps