In such a step the authorities of the Federal state of Saxony-Anhalt.
They explained that due to the high temperatures the concrete may expand and slightly raise the separate plates of the roadway.
As a result, the coating swells or collapses, which at high speed can pose a threat to drivers and passengers. However, the constraints are not strict: on one track, 100 miles per hour, and another 120 kilometers per hour.
According to forecasts, in some regions of Germany the temperature can rise to 40 degrees.