Network Rail painting tracks white to beat the summer heat

Look out for white railway tracks, as Network Rail has started painting some key sections with white paint — to cool them down.
(c) Network Rail
Over the next few weeks, approximately 1,500 litres of white paint – the equivalent of 30,000 square metres — will be applied to the railway tracks. By painting parts of the rail white, they absorb less heat – 5°C to 10°C cooler than one left unpainted.
The issue is that hot rail tracks expand and can buckle in the heat,