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- Q7556875 subject Q7011470.
- Q7556875 subject Q8257611.
- Q7556875 subject Q8791347.
- Q7556875 abstract "Solar road studs are flashing solar cell powered LED maintenance-free lighting devices used in road construction to delineate road edges and centrelines. Embedded in the road surface, they are an electronic improvement on the traditional cat's eyes in that they may give drivers more than a thirty-second reaction window compared with about 3 seconds for conventional reflective devices. The intense brightness of the LEDs makes them easily visible at distances of about 900 m under favourable conditions.Averaging about 100 mm square or 100 mm diameter and about 40 mm thick, units are extremely robust to avoid damage by passing vehicles, and are normally constructed of engineering plastics and polycarbonates. Use of solar road studs reduces the necessity of headlight main beams and the accompanying hazard of dazzling oncoming drivers. They are also more visible in rain and fog conditions where the old type retroreflectors and road markings are problematic. The solar cells charge batteries or capacitors during sunlit hours, over which period the flashing LEDs are turned off by a photoswitch.".
- Q7556875 thumbnail Solar_road_stud.jpg?width=300.
- Q7556875 wikiPageWikiLink Q18378713.
- Q7556875 wikiPageWikiLink Q25504.
- Q7556875 wikiPageWikiLink Q2835.
- Q7556875 wikiPageWikiLink Q2864.
- Q7556875 wikiPageWikiLink Q5479379.
- Q7556875 wikiPageWikiLink Q58803.
- Q7556875 wikiPageWikiLink Q62246.
- Q7556875 wikiPageWikiLink Q7011470.
- Q7556875 wikiPageWikiLink Q7556874.
- Q7556875 wikiPageWikiLink Q764561.
- Q7556875 wikiPageWikiLink Q8257611.
- Q7556875 wikiPageWikiLink Q8791347.
- Q7556875 comment "Solar road studs are flashing solar cell powered LED maintenance-free lighting devices used in road construction to delineate road edges and centrelines. Embedded in the road surface, they are an electronic improvement on the traditional cat's eyes in that they may give drivers more than a thirty-second reaction window compared with about 3 seconds for conventional reflective devices.".
- Q7556875 label "Solar road stud".
- Q7556875 depiction Solar_road_stud.jpg.