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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. 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.

4. Cat's eye (road) - Wikipedia

   en.wikipedia.org/wiki/Cat's_eye_(road)

   In the biopic Ferrari (2023) a damaged metal cat's eye is portrayed as causing a fatal accident in the 1957 Mille Miglia road race. At the village of Guidizzolo while travelling along a straight road at 150 mph (240 km/h) a worn left front tyre on the Ferrari 335 S driven by Alfonso de Portago is depicted as being sliced open by a damaged cat's ...

5. Traffic cone - Wikipedia

   en.wikipedia.org/wiki/Traffic_cone

   28 in (711 mm), 10 lb (4.5 kg) – for freeway/highway applications (with reflective stripes) 36 in (914 mm), 10 lb (4.5 kg) – for freeway/highway applications (with reflective stripes) In New Zealand, they are compliant in two sizes for use on all roads; these are: 35 in (900mm), up to 16.5 lb (7 kg) - for all activities on all roads.

6. 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.

7. Road traffic control device - Wikipedia

   en.wikipedia.org/wiki/Road_traffic_control_device

   Delineators are small reflective panels mounted on lightweight metal posts or flexible plastic tubes used to outline roadways and paths. These are about 1.2 metres (3 ft 11 in) high. In the USA, yellow reflective material is used for delineators on the left of the road, and white delineators are used to the right of traffic.