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Title: Keeping Track Of Pipelines And Wells Using Computer Graphics
Author: J. H. Deakin
Source: American Gas Association 1981
Year Published: 1981
Abstract: Graphic data related to the location of pipelines, class location corridor boundaries, special Class 3 areas, and dwelling unit buildings have been captured with state plane coordinate values, and combined with alphanumeric material and testing data for the pipeline, to be used for the calculation of class location and maximum allowable operating pressure in a computer system known as Class Location and MAOP System (CLAMS). This information is input and can be displayed using a Tektronix 4014-1 Graphics CRT Terminal. Hard copy printout of the graphic display as a plot of the pipeline location and population density for check print or other purposes is available by use of a remote drum plotter. Additions or deletions to population events or changes to the pipeline configuration can be input through the graphics digitizer. Class location changes are calculated automatically. The changes in graphic data are merged with replacement material and testing data to automatically calculate changes in MAOP and to identify exceptions where present operating pressures exceed the calculated MAOP.

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