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2. Raised pavement marker - Wikipedia

   en.wikipedia.org/wiki/Raised_pavement_marker

   Raised reflective markers, such as plastic, ceramic, or metal ones, include a lens or sheeting that enhances their visibility by retroreflecting automotive headlights, while glass road studs gather automotive headlights with a dome shape and reflect the lights with a reflective layer within.

3. Retroreflective sheeting - Wikipedia

   en.wikipedia.org/wiki/Retroreflective_sheeting

   Retroreflective sheeting for road signs is categorized by construction and performance specified by technical standards such as ASTM D4956-11a.; [4] various types give differing levels of retroreflection, effective view angles, and lifespan. [5] Sheeting has replaced button copy as the predominant type of retroreflector used in roadway signs.

4. Road surface marking - Wikipedia

   en.wikipedia.org/wiki/Road_surface_marking

   In colder climates, reflective markers may be installed below ground using an elongated narrow triangle, cut into the road surface that allows the device to be installed below the road surface. Newer technology allows these to be placed above ground with snowplough-able rails that attempt to protect the reflective components from the snowplow ...

5. Thermoplastic road marking paint - Wikipedia

   en.wikipedia.org/wiki/Thermoplastic_road_marking...

   Therefore, some countries once restricted the use of this paint or demand the use of anti-skid particles. In order to increase the antiskid performance of the line, thermoplastic paint has added reflective glass beads and other coarse fillers. Thermoplastic can be used very effectively for large anti-skid areas on roads and pedestrian walkways ...

6. Botts' dots - Wikipedia

   en.wikipedia.org/wiki/Botts'_dots

   Today, there are more than 25 million Botts' dots in use in California, [6] though they have started falling out of favor. In 2017, Caltrans announced that it would stop using Botts' dots as the sole indicator of lane division, due to cost and worker safety, and in order to make roadways more compatible with self-driving cars.

7. Mysterious ‘traffic’ signs with Donald Trump’s face pop up ...

   www.aol.com/mysterious-traffic-signs-donald...

   One of at least a dozen Trump signs was put up near the intersection of 92nd St. and Gatling Place by the entrance ramp to cross the Verrazzano-Narrows Bridge to Staten Island. Aristide Economopoulos