THE TRENTON BOARD OF EDUCATION MEETS GIS
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THE TRENTON BOARD OF EDUCATION MEETS GIS

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THE TRENTON BOARD OF EDUCATION MEETS GIS THE TRENTON BOARD OF EDUCATION MEETS GIS Presentation Transcript

  • The Trenton Board of Education meets GIS Mapping School Attendance Catchment Areas Trish Long Senior Planner City of Trenton Department of Housing and Economic Development June 2010
  • The Setting
    • # of K-8 schools in Trenton: 20
    • # of schools reconstructed since 2000: 4
    • # of schools to be closed in 2010: 3
    • Board of Education Street Directory
      • 30 page listing, including
        • street name , low address, high address, school name, “Odd Even,” grade
      • last revised in 1997
      • no existing electronic file
      • Over the years, changes were either handwritten on the front cover of the street directory or remained in a staff person’s head.
    Introduction Project Goals Our Approach The Future
    • GOAL 1: To create a new Street Directory using up-to-date centerline data. This Directory could potentially be used by:
      • Central Registration and the Transportation/Busing Department
    • GOAL 2: To use the updated street directory to create a map of school attendance catchment areas
    Introduction Project Goals Our Approach The Future
    • STEP 1: Enter street directory data into a spreadsheet
    • STEP 2: Reconcile the Street Directory data with the City’s new Master Street File to:
      • Identify streets missing from the directory
      • Determine if there are homes on the new streets (tax assessor was able to answer these questions)
        • No residences? Keep street in the dataset, but do not assign a school to that street, at this time.
      • Improve the quality of information associated with each street segment
        • e.g., verify street names , break out “lo-high” into FromLeft, ToLeft, FromRight, ToRight, correct school assignments, incorporate notes
    Introduction Project Goals Our Approach The Future
  • STEP 3: Once the street data was updated, we began assigning the schools to each street. Here is a sample what the Directory now looks like: Grades Kindergarten to 8th From/To Left From/To Right
    • STEP 4:
    • Join the updated Street Directory with the new Master Street File (centerline data) in ArcGIS.
    • STEP 5:
    • Map the data to illustrate the problems/omissions. The map allowed us to see and make the necessary changes.
    Introduction Project Goals Our Approach The Future
    • Initial ideas for the catchment area maps:
    • The areas would be represented by polygons.
    • To identify gaps, we could generate one layer for each grade level.
    • We could also generate a layer for each school.
    • Lots of possibilities for overlaying layers.
    • Maps produced on May 14, 2010:
    • 1) All K – 5 grades
    • 2) All 6 – 8 grades
    • 3) All schools with grades K - 5
    • 4) All schools with grades K - 8
    Introduction Project Goals Our Approach The Future
    • Sample School Attendance Catchment Area maps…
    Introduction Project Goals Our Approach The Future
    • Sample School Attendance Catchment Area maps…
    Introduction Project Goals Our Approach The Future
    • Next Steps:
    • Final assignment of schools to street segments by Board of Ed staff
    • Republication of street directory and maps
    • Ultimate solution: Upload school catchment data layers to Trenton’s Internet DataViewer
    Introduction Project Goals Our Approach The Future
  • Trenton’s Internet DataViewer… is an On-Line, interactive mapping system containing data from the City of Trenton for public use