Abstract
Using GIS and a Spatial Interaction Model for School Projections Track: Modeling Author(s): Simon Choi, Ping Wang The purpose of this paper is to develop a new approach using GIS and a spatial interaction model to improve the accuracy of small area school enrollment projections, used as input to running a regional transportation model for Southern California. Accurate school enrollment projections would help to increase the credibility of the regional transportation model results. The usual way of projecting school enrollments at transportation analysis zone level is to use the assumed relationship between school enrollments and the number of people in the same geographic area. That method, however, will not apply to newly developing areas due to the limited information about the above relationship and land-use constraints. Our new approach utilizes GIS, a spatial interaction model, and various land-use assumptions to locate alternative school locations and related school enrollments. This paper will discuss how to develop raster cells to perform this analysis with ArcGIS Spatial Analyst. Simon Choi SCAG Planning & Policy 818 West 7th Street 12th floor Los Angeles , CA 90017 US Phone: 213-236-1849 Fax: 213-236-1963 E-mail: choi@scag.ca.gov Ping Wang SCAG Information Services 818 West 7th Street 12th Floor Los Angeles , CA 90017 US Phone: 213-236-1909 Fax: 213-236-1963 E-mail: wangp@scag.ca.gov |
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