In 2020, Phoenix coated 36 miles of roads to fight extreme heat; surfaces became 12°F cooler at noon, but heat exposure for pedestrians rose 5.5°F
- Phoenix coated 36 miles of roads to fight extreme heatPainting city streets with a light-coloured, reflective coating can cool the asphalt underneath, but it can also increase heat exposure for people walking on the road.
- That unexpected trade-off emerged from a major trial in the American Southwest.
- In 2020, the City of Phoenix Street Transportation Department coated 36 miles of neighbourhood roads and a public parking lot with CoolSeal, a grey, water-based asphalt treatment designed to reduce the urban heat island effect.
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- Phoenix coated 36 miles of roads to fight extreme heatPainting city streets with a light-coloured, reflective coating can cool the asphalt underneath, but it can also increase heat exposure for people walking on the road.
- That unexpected trade-off emerged from a major trial in the American Southwest.
- In 2020, the City of Phoenix Street Transportation Department coated 36 miles of neighbourhood roads and a public parking lot with CoolSeal, a grey, water-based asphalt treatment designed to reduce the urban heat island effect.
Sources: Times of India