Are rumble strips still effective in the winter?
Engineering Research Institute for Cold Region-Japan On snow that has not been compacted, the noise and vibration still can be noticed even if the rumble strips are covered by snow. The noise and vibration occur even on snowy roads where the road markings are not visible. This is a great advantage in warning errant drivers even when road markings are covered by snow in winter. The snow removal and anti-freezing agents remove snow caught in grooves.
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