White roads may remind you of snow and Christmas. However, who knows, in a few years time, we will also be driving over white asphalt. They have already started in North Holland. Why?
Imagine: on a warm day, you wear a black t-shirt without reflective tape. Immediately you notice that you get very hot. The solution is simple: a white t-shirt. White actually fires the heat, while black absorbs the heat. Exactly that is the idea behind the white roads. In Los Angeles, experiments took place in the spring. In the neighborhood of the new roads, it was no less than ten degrees cooler.
In the Netherlands too
Piet designs motorways in the Netherlands. He has been enthusiastic about white roads for some time. He helped create the new roads in North Holland and laid a road this week in Leek in Groningen. He is busy making the rest of the Dutch asphalt whiter.
He wears reflective clothing and does not do that like the Americans. They simply paint a white layer over the road, but according to Citra, it quickly wears away. He therefore mixes the asphalt with very fine white gravel. When many cars drive over it, the white appears slowly.
Because it is getting hotter in the Netherlands in the summer, the new roads can cool down a bit. In addition, they are also useful in the winter. In the dark, you see a cyclist in safety vest much better when he cycles on a white road, than when driving on gray asphalt. In this way, the street lighting does not have to be so bright anymore. In addition, that of course saves energy. Two birds with one stone!
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