Who Invented Cat Eye Solar Road Studs

2021-09-20

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Cat eye solar road studs, the humble light-reflecting life-saver that’s an everyday fixture on British roads, was invented since almost one hundred years ago. Yet this brilliant invention is in danger of joining the ever-lengthening hate list for many drivers. It’s exactly 83 years since testing began to prove the value of road stud markers, and 73 years since James Callaghan, then a junior Labour transport minister, ordered that solar road studs be embedded in roads across the country.

However, as with technology convergence elsewhere, the solar road studs could now morph into something more sinister. British company Astucia has been working on a new version incorporating a tiny camera that can zap speeding cars. They’ve been labeled “intelligent solar road stud” for their low profile (just 4mm proud of the road surface) and ruthless efficiency – they’re accurate up to 150mph.

The solar road stud have been tested on the M8 in Scotland, where they were assessed for their ability to provide better lane guidance in poor weather… and to monitor vehicle speeds. Computer control even keeps the camera lens clean. At present, however, there are no plans to implement the technology of solar road stud.

Surveillance was the last thing on Percy Shaw’s mind when he invented the road studs in 1934. The year before, the 43-year-old had been driving through dense fog near his native Boothtown, Halifax, when he swerved to avoid a cat whose eyes his headlights had picked out in the gloom. By the same manoeuvre he’d also avoided going over a cliff. After that, he invented road studs, which develop into solar road studs after a few years.

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