WPB: Vienna is increasingly preparing for the fight against so-called heat islands—urban areas where asphalt surfaces heat up quickly. A pilot project in the 23rd district is now expected to provide innovative solutions: Four different asphalt mixtures, including water-permeable “cool pavements,” are being tested on an 80-meter section of the Liesingbach bike path. The goal is to reduce temperature development while also making asphalt more environmentally friendly.
In collaboration with the Vienna University of Technology, one conventional type of asphalt and three special mixtures have been developed, according to ORF reports. The most important criterion is the water permeability of the surface. The new asphalt is intended to allow rainwater to seep into the ground much more effectively than before, preventing soil sealing. At the same time, the new mixtures aim to reduce the high surface temperatures caused by sunlight.
As part of the research project, which will run for three years, temperature and humidity sensors will provide precise data. Wolfgang Ablinger from the Roads Administration (MA 28) emphasizes that the project is intended to help cool the city in the long term. If the tested mixtures produce good results, they could soon be used in other parts of Vienna, making a significant contribution to climate protection.
By Bitumenmag
Bitumen, Asphalt, Pavement, Road
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