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Compliance-Auditor.gif  Compliance Auditor

Automated spatial HCA, Class and MAOP determination.

The Compliance Auditor software tool conducts Class Location analysis according to CFR 192.5 and HCA analysis using Method 1 or Method 2 according to CFR 192.903.  The MAOP calculator allows a user to calculate the MAOP of each component along a section or multiple sections of pipeline according to material properties and historical operating conditions.

In the Class Location algorithm, the pipeline is scanned reviewing the location of structures and outdoor areas and the pipeline properties are used to determine the operating design stress level.  Reports are generated to indicate the class of the pipeline, compare class location changes from the original class stored within the database, and report potential compliance issues with design stress versus required stress level.  The user is able to set preferences for each class location run such as the dimension of the Class Location Unit, the clustering method, start and end determination methods, and the number of 4 story buildings required to trigger class 4 locations.

High Consequence Areas (HCA’s) are determined according to either Method 1 – Class location method or Method 2 – Potential Impact Radius method as selected by the user.  The user can also select the stored class values to be used, the MAOP to be used in the PIC calculation, add a buffer value to the PIC, select an adjacent HCA ‘merging’ option, and map the specific structure types to be considered as Identified Sites.

The MAOP Calculator determines the maximum allowable operating pressure based on pipeline characteristics for natural gas pipeline systems, according to DOT Safety Regulations Part 192.  The calculated MAOP values are then updated per pipeline segment utilizing the Pipeline Hierarchy and associated linear referencing system.  Reports are provided to indicate what components are driving the MAOP and how it was calculated.

This MAOP calculator selection screen allows the user to define which portion or portions of a pipeline or group of pipelines to perform the calculation against.  The user can select which type of class area calculation to run the calculation against essentially allowing for the performance of ‘What If’ analysis. Official Class, Design Class and Calculated Class are typical examples of datasets to be used in the MAOP calculator.  If the user selects Calculated Class, the user can further select which Calculated Class run to use.

This is an excellent tool to prove due diligence to a regulator as the pipeline is assessed accurately and consistently and the results are 100% repeatable.

ComplianceAuditor Features

  • Computes all HCA and Class location start and end points based on US and Canadian rule
  • Review pipeline centerline and calculate the Potential Impact Radius (PIR) for each unique combination of pressure and diameter
  • Compare the PIR to digitized structures including areas of population density (Class 3 and 4), areas of congregation and identified sites
  • Start and end point of each HCA is calculated and provided in a summary list along with the reason – i.e. identified site, >20 people outdoors, etc.