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Creating Base Maps and Layer Files for Cartographic Consistency

NCJ Number
Geography & Public Safety Volume: 1 Issue: 2 Dated: July 2008 Pages: 9-11
Date Published
July 2008
3 pages

This article discusses how to create consistent standards when making a map for crime analysis.


Crime analysts create maps that focus on a specific problem. When creating a map, the goal should be to show how the data that matter to the audience are significant. The way to accomplish this is by establishing cartographic standards that officers can follow to understand the geographic elements of the problem in question. The representation of the problem must be consistent with consistent standards. In creating consistent standards, this article outlines instructions for creating layer files, describes base map production, and provides useful tips for making maps. Producing consistent cartographic products allows map users to develop familiarity with the way information is portrayed. Using layered files and base maps ensures that information is portrayed consistently and saves valuable production time. 3 figures and 6 notes

Date Published: July 1, 2008