ITU‐T's Technical Reports and Specifications 389 It is not intended to address rehabilitation schemes such as upgrade of existing buildings. The focus is on establishing principles with outline rather than detailed dimensions. This is one of a possible series of specifications to be addressed in Question 20 of ITU‐T Study Group 5 (SG5). 3 SSC Utility Service Requirements [b‐1] identifies a number of services which utilize an urban corridor. The urban corridor is more commonly understood as a roadway or boulevard etc. The urban corridor is found in both new‐build and existing cities and may be regarded as the conventional approach where each utility is installed separately in its own trench. Underground services mentioned here and elsewhere include: Water distribution system Wastewater collection system Landscape irrigation water supply system Urban storm water drainage system Gas network medium and low pressure Power supply, including high voltage that supplies primary substations, medium voltage low voltage Telecommunication networks (e.g., fiber optic cables and twisted pair cables) and Community Antenna Television (CATV) Fiber optic networks including: Intelligent Transportation System, Traffic Control System, Closed Circuit TV, and Police District Heating/Cooling Network Power for public street lighting Oil pipeline for oil refining plant Solid waste collection is shown in [b‐2] (vacuum pipes use suction of air to propel waste to a central waste processing unit‐plasma gasification in this example). This is illustrated below as an example of a new service not present in most existing cities. An ICT management system is needed to support this.