Dr.-Ing. Robert Stein is the CEO of Prof. Dr.-Ing. Stein & Partner GmbH. He is also managing dirctor of STEIN Ingenieure GmbH, STEIN Infrastructure Management GmbH and the media company visaplan GmbH. His business activities include planning services as well as the expert supervision of defects in the field of underground infrastructure systems. In this connection he has been involved in a multitude of jacking projects. His most manifold research activities had the particular aim of achieving an improvement of the capacities of microtunnelling. He is the author of the reference book “Asset Valuation of Sewer Networks”, of the chapter on pipe jacking works (ATV DIN 18319) and co-author of the book “Mini-Horizontal Directional Drilling” as well as of various technical articles.As a technical advisor he was involved in the feasibility study of the project “Construction of a gas pipeline in the Baltic Sea by pipe jacking” in the area Greifswalder Bodden by order of Nord Stream AG, Switzerland in 2007. By order of the federal government he was in charge of the project management for the planning check, supervision and back up of the authorising bodies within the scope of the approval process of the Emscher Sewer, among others check and evaluation of the construction, operation and maintenance concepts for the approx. 52 km wastewater sewer DN 1400 to DN 2800. This sewer project is regarded as the one of the largest of its kind in Europe.In the field of human resource development he is responsible for the development of the largest e-learning-platform in the area of civil engineering (UNITRACC.com) in cooperation with the Main Association of the German Construction Industry. For this development he was awarded with the NoDig-Award and the european e-learning award "Eurela" Furthermore, Dr. Stein has a long experience in the area of sewer construction and maintenance. Current main focus is the modelling of conditional and substantial developments of supply and disposal pipelines and also the development of demand-orientated maintenance strategies. He is the author of over 100 papers and has taught over 100 seminars on pipeline construction, rehabilitation and management.