Sweden Warns of "Bleeding Asphalt" Due to Extreme Heat

As temperatures soar across Sweden, reaching over 30 degrees Celsius in many areas, the Swedish Transport Administration (Trafikverket) has issued a warning about a hazardous road condition known as "bleeding asphalt." This phenomenon occurs when extreme heat causes the asphalt binder to soften and rise to the surface, creating a slick, oily layer.

"Where it occurs, it becomes very scary," stated Jan-Erik Lundmark, national coordinator for paved roads at Trafikverket. The "bleeding" asphalt can significantly reduce tire grip, making roads dangerously slippery and increasing the risk of accidents. While not an everyday occurrence, its presence poses a serious threat to road safety.

The heatwave, expected to persist until Friday, is exacerbating the issue. Drivers are urged to be particularly vigilant and reduce their speed when encountering areas affected by bleeding asphalt. The sticky residue can be particularly treacherous for motorcycles and bicycles, which have less stable contact with the road surface.

Trafikverket's warning serves as a crucial reminder for motorists to adapt their driving behavior during periods of extreme heat. The agency advises drivers to stay informed about road conditions and exercise extra caution, especially on newly paved or older asphalt surfaces that might be more susceptible to this heat-induced degradation.