DAUB has published "Recommendations for Sustainability in Underground Construction, Part 1: Framework Conditions, Challenges, Solutions, and Project Assessment".

This document, as Part 1 of the recommendations “Sustainability in Underground Construction”, deals with the general political framework conditions and outlines the status quo and current challenges. Furthermore, it explains the contributions that underground structures can make to sustainability. Ecological, social, and economic aspects are addressed. Solutions are shown on how underground construction can become even more sustainable, in particular by addressing the topics of sustainable planning, circular economy, new materials and improved construction methods, biodiversity, and the conversion of underground structures. The theoretical approaches to project assessment are explained, and possible assessment methods for use in underground infrastructure projects are presented and evaluated.

All DAUB recommendations (divided into the subsections BIM, Contract, Excavation, Support, Health and Safety and Withdrawn) can be found in the download area.

The revised recommendation has been assigned to the subsection "Tendering, Awarding, Contractual Issues".