Rumble Strips and Stripes - Federal Highway Administration (FHWA)
Rumble Strips are an effective countermeasure for preventing roadway departure crashes. The noise and vibration produced by rumble strips alert drivers when they leave the traveled way. Rumble stripes is the term used for rumble strips painted with a retroreflective coating to increase the visibility of the pavement edge at night and during inclement weather conditions.
The link address is: http://safety.fhwa.dot.gov/roadway_dept/pavement/rumble_strips/
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In keeping with Governor Hickenlooper's Executive Order D2011-005, CDOT engages in extensive public outreach at the outset of each rule making process, involving state and local entities and individuals in the development of the rules.
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