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GIS Data Resources, Inc. Project Overview GDR has built a high -quality geofile for the City of Santa Ana to utilize in the Tritech Computed Aided Dispatch (CAD) system. One of the most important, and often overlooked, aspects of having a successful CAD system is maintenance of Geofile data. New construction, road closures and condition changes, changes in commercial occupancy, new annexations, and changes to emergency response strategies all need to be incorporated into the spatial database. Geofile maintenance ensures the CAD/AVL system can continue to run seamlessly, with up-to-date, accurate location information. Maintenance activities will include the boundary of the city of Santa Ana, as well as a one mile buffer area. To address the maintenance needs for the City of Santa Ana's Geofile, GDR proposes to provide geofile updates on a quarterly basis. This document outlines the responsibilities of both GDR and the City of Santa Ana to complete the update work. Data Repository and Distribution GDR will be the central repository for the geofile, and will coordinate distribution of the updates with the City of Santa Ana, Tritech, Group 1, and any other required parties. Update Information Sources GDR will interact with the City of Santa to acquire updated source materials. Sources may include: New construction maps from planning department Updated parcel maps from planning department Business tenant information for commercial buildings Export of manual overrides from CAD system for investigation Paper maps depicting boundary changes GDR GIS data sources Deliverables GDR will deliver ESRI shapefiles, with the spatial indexes set and a spatial projection of STP0406.NAD83, feet. 8 Digital Drive, Suite 200, Novato, CA 94949 • (888) 654-4GDR (4437) • Phone (415) 884-4437 • FAX (415) 884-4407 • www.gdr.com 2