Intelligent paint turns roads pink in icy conditions

When temperatures drop, it can be tricky to judge road conditions accurately. Soon, however, some roads could give drivers clear icy warnings by turning themselves pink.
A new temperature-sensitive varnish developed by researchers at French company Eurovia can be applied to road surfaces to warn drivers about dangerous conditions. The technique – still at the testing stage – might help prevent ice-related traffic accidents in future, the researchers say.
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