Abstract

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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