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Making Maps by Computer

by Kneeland A. Godfrey, Jr., (M.ASCE), Editor; Civil Engineering Magazine, ASCE World Headquarters, 345 East 47th Street, New York City, NY.,


Serial Information: Civil Engineering—ASCE, 1977, Vol. 47, Issue 2, Pg. 37-45


Document Type: Feature article

Abstract:

For making maps, digitizer-computer-plotter systems are increasingly popular. Here are case histories of three applications�by Brooklyn (New York City) Union Gas. Co. for keeping track of 650 miles of distribution pipe and thousands of building-service lines on Staten Island; by a small Houston consulting firm in making subdivision maps; and by the Texas Department of Highways and Public Transportation for mapping 500 miles of highway a year. Cost-benefit calculations for the new mapping systems are included. In all three cases, significant reductions in cost of making maps have been achieved or are in prospect. But not all civil engineering organizations using such systems have saved money so we offer guidelines to those thinking of purchasing such hardware or services.

Subject Headings: Mapping | Highways and roads | Highway transportation | Case studies | Benefit cost ratios | Systems engineering | Public transportation

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