In the “Sonnenrain” project in Küsnacht, the entire top layer of the road, including utility lines, is being renewed. TBF is supporting the civil engineering project throughout SIA phases 2-5 integrating the SNBS infrastructure standard method into the planning. In the pre-study phase, options were already evaluated in terms of sustainability aspects such as quality of stay, safety, life cycle costs and climate adaptation. The best option identified in this way will be further developed in the construction project phase with a comprehensive SNBS assessment. At the same time, existing water and mixed water pipes are being replaced, new utility pipes are being planned and coordinated, and implementation is being prepared using digital planning models.

The project combines classic civil engineering tasks with strategic sustainability development and creates transferable added value for future municipal renovation projects.