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{{short description|Reflective road paint}} ...ty.png|thumb|upright=1.3|Incident light is refracted within glass beads on road surfaces and reflected into the driver's field of view.]] ...

{{Short description|Geometry of road design}} * The '''alignment''' is the route of the road, defined as a series of horizontal tangents and curves. ...

...t history were first represented in the early form of [[Cave painting|cave markings]] and drawings, [[calendar]]s and astronomical symbols. Then books and writ ...blisher=Griffin Press Limited|year=1986|isbn=0-424-00117-9|location=Marion Road, Netley, South Australia|page=40}}</ref> ...

...al contact), indirect physical contact (such as by touching a contaminated surface), and [[airborne disease|airborne transmission]] (if the microorganism can ...don Drugs (49684963711).jpg|alt=Floor markings for social distancing|Floor markings can help people maintain distance in public places, especially when [[Queue ...

...h of {{convert|1.32|inch|mm|1}} and is very precisely divided with decimal markings. Bricks from that period are consistent with this unit, but this usage appe ...nautical mile, so 60 nautical miles would be one degree of arc on Earth's surface, taken as a [[sphere]].<ref name=mouton>US Metric Association [https://usma ...