For municipalities Three hot days, one measurement site: how does road surface temperature change after a light-coloured surface treatment?
The reported daily road surface maxima fell from 56.1 to 50.5 °C. At the same time, the air temperature maximum rose from 36.2 to 37.2 °C.
Lower road surface maximum
on day three compared with day one
| Date | Road surface | Air |
|---|---|---|
| 25.06.2026Before treatment | 56.1 | 36.2 |
| 26.06.2026Treatment at around 12:55 | 51.7 | 37.0 |
| 27.06.2026Surface still light in colour | 50.5 | 37.2 |
Source: Jan Bose's original LinkedIn post ↗.
At the site, an infrared thermometer recorded the road surface, a weather station recorded air temperature and solar radiation, and a camera and radar recorded traffic. The data were analysed in ThingsBoard.
The post describes a drop in road surface temperature after treatment on 26 June. The light-coloured surface remained visible the following day.
Three days at one site do not replace a controlled long-term comparison. The exact treatment method had not yet been confirmed in the post. Lasting cooling or cost savings cannot be established from this evidence.
Times are local to Martinfeld (Europe/Berlin). Local notices and linked original documents may be in German.