Cremerstraat: A circular urban experiment in Utrecht
Utrecht aims to reach a fully circular economy by 2050. Utrecht’s sustainable vision is also reflected in its wish to become the most bike-friendly city in the world. These goals are both reflected in the "Cycle lane Cremerstraat”, which has been finalized in September 2017. This project involves the application of recycled asphalt for the transformation of an existing brick road into a nine hundred meter cycle lane.
Utrecht challenged the contractors to submit a circular solution for the asphalt that will be used for this road. For this reason the contractors provided a Life Cycle Analysis to prove that their proposed solution was the most sustainable. The chosen contractor KWS suggested a project that guarantees less asphalt, two instead of three layers of asphalt, as well as 100% recycled asphalt for the lower layer of this cycling lane. As a result, reducing the amount of asphalt reduces consequently the environmental impact, meaning less CO2 emission. On the recycled asphalt side, only the lower part is fully recycled, leading to 69% less new asphalt than in a business as usual situation.