Portland, USA, August 10, 2007: To help the community keep tabs on crime, the City of Tigard has launched CRIME Spotter, a web-based mapping tool for general information about criminal activity. CRIME Spotter provides the public with a map based ‘report centric’ GIS application showing where crimes have occurred.
CRIME Spotter uses GeoNorth’s MapOptix and Multi-Map Framework, as well as ESRI’s ArcIMS, ArcSDE, ArcGIS and Adobe’s ColdFusion. The MapOptix Multi-Map Framework is an extensible FuseBox solution that provides the basis for a report centric mapping application. It provides an intuitive way to query a database and generate summary pages with a map and report.
CRIME Spotter is specially designed for public use. It works by entering an address, which in turn generates a one mile buffer map with a summary of reported crimes with descriptive information. Individual summary maps for major crimes, such as burglary and motor vehicle theft, are available by clicking specific tabs within the application. A random 1/4 mile grid overlay also shows crime intensity by graduated colors.
Data for CRIME Spotter originates from the Portland Police Data System, a large multi-jurisdictional crime database to which the City of Tigard contributes. Through a series of automated scripts, a special reported crime extract is created each month. Then, a series of ArcGIS geoprocessing scripts parse out the individual crime point layers, as well as update polygon grid layers for creating special graduated color thematic layers of crime totals. The scripts replace the layers in ArcSDE and result in a 12 month moving window of reported crime data.
CRIME Spotter has received a favorable response from the City and community. The City is planning on expanding the report centric framework to include other spatial information, such as utilities, planning/zoning information, neighborhood information, and parcel information.
“By simplifying the front end with just a simple address query, followed by a series of intuitive tabs with maps and data in an easy to read format, the user’s experience is greatly enhanced. Users do not need to worry about panning, zooming, or figuring out what layers to turn on” says Preston Beck, City of Tigard GIS Coordinator.
“With the extensibility of the MapOptix Multi-Map Framework, we will be able to create focused maps with information in an intuitive format so the public can quickly get the information they need without the fuss of traditional interactive web-based mapping” added Beck.