Swiss railway field tests white paint to keep tracks from buckling
The in the eastern Swiss canton of Graubünden is testing a technique commonly used in Italy to fight the distorting effects of heat on metal: painting the tracks white.
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In theory, the temperature of the tracks could be reduced by as much as seven degrees as a result of the treatment, Yvonne Dünser, a spokesperson for the Rhaetian Railway, told the Swiss News Agency, ATS. The results will be assessed when it is less warm.
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A study by the Swiss Federal Technology Institute ETH Zurich showed that white paint had a positive impact in strong sunlight. The researchers then turned to the Rhaetian Railway as a practical test subject.
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