Abstract
This report presents information about geographic information systems (GIS) and CODES lined data. Section one provides an overview of a GIS and the benefits of linking to CODES. Section two outlines the basic issues relative to the types of map data, resources needed for developing a traffic safety GIS, institutional issues and the linking of CODES to GIS. It also includes implementation recommendations. Section three includes descriptions of the CODES/GIS developed by Hawaii, New Hampshire, Maryland, and South Carolina. The purpose of this information is to encourage other CODES states to expand CODES to include GIS. (Author/publisher)