ABSTRACT
The development of cities to sustainable, CO2-neutral areas with reduced energy and resource consumption and resilient urban structures are of high importance. Much research has been made on issues of sustainability and energy efficiency in the building sector. Urban infrastructure under consideration of sustainable issues has not been in focus yet and not all findings from the surface construction can be adopted for underground infrastructure. Main differences can be found in the life expectancy, the availability and the flexibility of subsurface systems. As interdisciplinary approach is essential to forward looking developments, we explore in this paper the connections between urban infrastructure and sustainability issues from various perspectives. The state of art on infrastructure projects is shown through literature research and already realized projects. Work is collected concerning theoretical concepts and practical research of all life cycle phases from production, construction, use, renewal and dismantling. Based on the aforementioned approach the authors will show the need for research on these issues and present a possible road map for further development.
