Cool pavement pilot project

Roads, sidewalks, and bike paths cover a significant portion of the surface in cities and agglomerations. These often black asphalts absorb a lot of solar energy during the day, heat up and store the heat of the day to release it overnight - these affected cities are several degrees warmer than their surrounding areas. This urban warming effect poses a serious threat to human health. Climate change is increasingly fueling this effect, especially in densely built-up cities and agglomerations.

Cool pavement pilot project

However, there are already road surfaces that heat up less than conventional surfaces due to their lighter color. In Switzerland, no such pavements have been tested in practice so far, which is why the present pilot project takes on a pioneering role.

This project in the pilot program of the FOEN wants to test different pavements in practice in cooperation with the cantons of Bern and Valais. On the one hand, cooling pavements will be installed and, on the other hand, their practical applicability, such as construction, costs, maintenance and noise effects, will be clarified. For this purpose, various pavements were installed in June and July 2020 in Bern and Sion. During the hot summer days, the pavement properties were recorded using sensors in the pavement and surface temperature measurements.

Oberflächentemperaturmessungen

In Bern, the cameras and loggers have now been dismantled at the end of November 2020, while in Valais the measurements continue over the winter. First results are available and are promising.

Goal

The main objective of the pilot project is to provide cities, municipalities and cantons affected by heat island effects with a tool that answers the most important questions on the application and use of the different cool pavement solutions and allows the situation-specific selection of the appropriate measures to mitigate the heat island effect.

 

The project in the media:

Similar articles

Low-noise road surfaces – Complete advice from a single source

Low-noise road surfaces – Complete advice from a single source

Nowadays, a road surface must not only fulfil safety aspects. It should also be as cheap and durable as possible, be able to withstand the emerging traffic load and cause as little noise as possible in densely built-up Switzerland. Low-noise road surfaces are often a good choice here. However, the enforcement authorities responsible for the roads are repeatedly confronted with the following questions: How noisy is the existing pavement? Which low-noise pavement is optimal on which road section? How effective is the newly installed low-noise pavement? Is there potential for optimisation? Grolimund und Partner provides answers to these questions.
CPX road surface measurements - commitment to research and standardisation pays off

CPX road surface measurements - commitment to research and standardisation pays off

Road noise is significantly influenced by the acoustic properties of road surfaces. In order to record these, G+P introduced the first CPX measurement system in Switzerland in 2008. Almost 15 years of know-how and continuous development of the measurement system, through research and standardisation work, have paid off. Our customers benefit from reliable and robust results with the highest repeatability. For the canton of Fribourg, which is fully committed to “whispering” road surfaces, accurate measurement results are essential for the implementation of its noise protection strategy.
Cool pavements – We do research with a practical purpose

Cool pavements – We do research with a practical purpose

G+P repeatedly conducts research on highly topical social issues and deliberately works in an application-oriented and practice-oriented manner. This is also the case with the "Cool Pavements" pilot project, which uses targeted research to help alleviate the increasing heat stress in densely built-up areas caused by climate change. The project resulted in technologies that can be used directly on Swiss roads and squares.