Dr.-Ing. Robert Stein is the Managing Associate of Prof. Dr.-Ing. Stein & Partner GmbH and Managing Director of STEIN Infrastructure Management GmbH. His business activities include the consultation of cities to optimize their investment planning and their rehabilitation concepts for water supply and wastewater disposal networks. The basis for this is the life cycle asset management system “STATUS”, which has been continuously developed since 2003 and has already been used successfully for approximately 25,000 km of sewer and water networks. Since 1995 he has published more than 100 publications, reports, expertise and feasibility studies. He is the author of the reference book “Wertermittlung von Abwassernetzen (Asset Valuation of Sewer Networks)”, Trenchless Technology for Installation of Cables and Pipelines – 2nd Volume: Horizontal Directional Drilling (HDD), of the chapter on pipe jacking works (ATV DIN 18319) and co-author of the 4th edition of the international bestseller “Instandhaltung von Kanalisationen” (Rehabilitation of Drain and Sewer Systems) as well as of various technical articles.