City of Quebec - CCTV Inspection Using a Camera with Telephoto Lens

Project description

The project involved carrying out sewer system inspections using a camera with telephoto lens on approximately 12,000 manholes and 300 kilometres of sewer pipes in 2010 and 2011.

The City of Quebec wanted to have a comprehensive understanding of the condition of its sewer systems in order to ensure longer service life and proper functioning of the underground infrastructure and meet the needs of its population, with a view towards sustainable development and assisting the City's engineering department in pursuing its mission by developing data bases to hold system information, identify problem areas and prioritize work to be included in the three-year capital plan.

Services provided

  • Introduction of integrated project planning and control systems
  • Establishment of data bases for exchange
  • Preparation of inspection routes
  • Development of identification boards
  • Weekly updating of number of manholes inspected by camera and viewed by analysts
  • Summary validation of sewer systems inspected and preparation of records of observations and major anomalies
  • Inspection of sewer systems using a multidirectional camera with telephoto lens operated from the surface and management of related activities
  • Viewing and analysis of sewer pipes inspected; use of the PACP/MACP coding system, version 4.2 of NASSCO-CERIU, tailored for inspections using a camera with telephoto lens
  • Assignment of ratings and MAMROT indicators regarding functional anomalies and structural condition of sewer pipes inspected
  • Quality control of continuous analysis and viewing
  • Submission of photographic reports

Complexity and key features

  • Large number of manholes to be inspected in a short period of time
  • Management of a large amount of information to be processed and forwarded to the City, e.g.: observation records

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