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A white retroreflective raised pavement marker (Stimsonite design) A blue raised pavement marker (for marking the location of fire hydrants) White markers — for lane markings or to mark the right pavement edge. Yellow or orange markers — These separate traffic moving in opposite directions, or mark the left pavement edge on one-way roadways.
Other equipment is often used with road marking machines. The main auxiliary equipment includes thermoplastic paint pre-heaters, hand-push pre-markers and road marking removers. Thermoplastic paint pre-heater is used to melt the solid powder coating into a viscous liquid, providing a steady supply of paint to the marking machine.
Shoulder and centerline rumble strips are used to reduce lane departure crashes. Centerline rumble strips are used on undivided highways to reduce cross-over incidents and resultant head-on collisions. Shoulder rumble strips are used primarily to reduce run-off-road collisions. They alert distracted or drowsy drivers that they are leaving the ...
Botts' dots (turtles in Washington and Oregon or buttons in Texas and other southern states) are round non-reflective ceramic [1] raised pavement markers. In many parts of the US, Botts' dots are used, along with reflective raised pavement markers , to mark lanes on highways and arterial roads .
Raised pavement marker or raised reflective marker A road surface marker used on roads, usually made with plastic, ceramic, thermoplastic paint or occasionally metal, and come in a variety of shapes and colors. Ramp. See slip road. Ramp meter A device that regulates the flow of traffic entering a freeway. Ranch-to-market road or ranch road
Interim markings are temporary markings used in place of a pavement for two weeks or until a real pavement is installed in that specific area. These broken-line markings are at least ten feet (3.0 m) in length. Raised pavement markers are used to supplement or replace pavement markings. They may have embedded reflectors or may be non-reflective.
Slow or stop when the vehicle is disabled and traffic or other circumstances prohibit the safe movement of the vehicles to the shoulder to the right of the main traveled portion of the roadway.
Yellow or amber markers — These are found next to the central reservation (US: median) on motorways and dual carriageways and, in the Republic of Ireland, are also used on hard shoulders. Red markers — These are found by the hard shoulder on motorways and at the edge of the running surface on other roads.