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Deutsche Bahn to fight future heatwaves with 'white rails'

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Deutsche Bahn to fight future heatwaves with 'white rails'
Deutsche Bahn trains in Frankfurt am Main in May 2019. Photo: DPA
14:27 CEST+02:00
After successive summer heatwaves Germany's public rail operator Deutsche Bahn is testing white-painted rails designed to reflect some rays and protect them from heat damage.

Experiments this summer succeeded in keeping the rails cooler, the firm
said in a statement, meaning DB will now extend them to a kilometre-long
stretch on the high-speed line between northern city Hanover and
centrally-located Würzburg -- one of the country's busiest.

READ ALSO: How travelling by train in Germany is set to improve

The environment-friendly paint's resilience to dense traffic will be
thoroughly tested on a 61-metre-high bridge near Melsungen in the federal state of Hesse.

Within a year, results should "form the basis for the extension of the
project to other routes," DB said.

As steel expands in the heat, longer, hotter summers can damage rails and the rail bed.

Initial tests have found white rails reflect more light and heat up "significantly less" than normal ones.

Swiss rail operator CFF has already tested white-painted rails, alongside
spraying them with cool water.

Other options for DB include "extensive vegetation management" and
high-tech solutions like aerogels or "new findings from bionics", the company said.

READ ALSO: Explained: How Germany is improving its 'ailing' rail network

 
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