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Pipe Damage Assessment Tool (PDAT)

A pipe damage assessment tool (PDAT) was developed to give a risk based prediction of pipe condition to avoid the need for a CCTV survey of every pipe in the city.

With more than 2,500 km of storm water and wastewater pipes needing to be assessed for damage before design work could start, SCIRT needed to develop a fast, cost-effective way of determining pipe damage, without having to Closed-circuit Television (CCTV) survey every pipe.

SCIRT’s Asset Assessment and GIS teams developed a pipe damage assessment tool (PDAT) that predicted the structural condition of pipes that were not CCTV surveyed.

The PDAT used a range of key damage indicators to predict pipe damage, including CCTV completed on other pipes in the area, pipe material and age and land damage indicators.

SCIRT found the PDAT accurately predicted the conclusions of a CCTV survey for 75% to 95% of the pipes in a catchment network based on CCTV samples of 5% to 30% of the total network.

Glossary terms:

  • CCTV: Closed-circuit Television
  • PDAT: Pipe Damage Assessment Tool
  • RAMM: Road Assessment and Maintenance Management (software)
  • LPI: Liquefaction Potential Index (assesses the damage potential of liquefaction)

Attachments

 Predicting Earthquake Damage to Gravity Pipe Networks Cover
Predicting Earthquake Damage to Gravity Pipe Networks

A conference paper about the Pipe Damage Assessment Tool (PDAT).

Size:

805.54 KB

Example of PDAT - Scoping Data Cover
Example of PDAT - Scoping Data

A diagram which shows outputs from PDAT (with explanations).

Size:

319.83 KB

Example of PDAT - Calibration Balance Cover
Example of PDAT - Calibration Balance

A diagram which shows outputs from PDAT calibration/validation (with explanations).

Size:

297.19 KB

 DG023 The use of Pipe Damage Assessment Tool (PDAT) outputs for Project Definition and Concept Design Cover
DG023 The use of Pipe Damage Assessment Tool (PDAT) outputs for Project Definition and Concept Design

A design guideline which provides guidance to project definition and design teams on how to use Pipe Damage Assessment Tool (PDAT) outputs in their scoping and concept design work.

Size:

346.09 KB