Decision support system for the rehabilitation planning of sewers

  • A database serves as the repository of all project-related data; including the CCTV shown structural and operational damage, pipe soil and rehabilitation option characteristics.

  • A data manager makes database information transparently available to other modules, providing also the capability of 'what if' scenarios.

  • A GIS module holds spatial data and provides visual evaluation functionalities.

  • A expert system functions as the coordinator among the modules and as a user-friendly interface.

  • The structural rehabilitation module estimates probabilistically the evolution of structural safety with time. Thus it determines when the pipeline must be re-inspected or rehabilitated to maintain structural safety.

  • The rehabilitation module selects the optimum rehabilitation method.

  • The prioritarisation module assigns rehabilitation project priorities taking into account the severity of damage and the consequences of failure.












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