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GIS

A pipeline system is a geospatial asset. Geospatial tools facilitate the management of such assets.

As a nearly-indispensable tool in risk assessment, a Geographic Information System (GIS) allows rapid inclusion of enormous amounts of location-specific information. A GIS includes a database and tools to move database information in and out of a spatial environment. As discussed here, concepts and terminology for risk assessment often come from the GIS world. For example, a centerline with measures is the recommended foundation for collecting, aligning, and managing data for a pipeline.

While a full discussion of GIS theory, platforms, and applications to risk assessment is far beyond what this site can provide, consider the following highlights:

  • for data collection
  • for data mgmt
  • for calculations
    • draindown
    • hazard zones
    • release dispersion
    • AC induced corrosion
    • sympathetic reactions
    • etc
  • for info display
    • inputs and outputs of risk assessment
    • heat maps
    • alignment type sheets
    • profiles
    • etc
  • open-source options
  • tools to share

While the power of a GIS tool should not be understated, note that some will overestimate what can be done with graphical tools. In most instances, tabulated data, although not visually attractive, plays a big role in risk assessment and risk management. A rule of thumb is that tabulated data serves as a pathway to drill down to location-specific information where the graphical tools become more useful. See ‘Seduced by Graphics–the myth of risk management by images’.

Sample procedure for initial intersects of a pipeline centerline with public domain GIS data (shape files). See also discussion of data myths and data integration.