IKT investigates practical issues concerning the performance of underground infrastructure. Its client group consists primarily of operators of surface water and foul sewer networks as well as water and gas supply networks. The network operators define the topics for IKT’s research and monitor, and support the research. IKT develops project concepts, performs laboratory and in-situ tests, and prepares the written research reports. The topics include a diverse range of technical, quality, procedural and organisational issues covering the construction, operation and refurbishing of networks.