The Trenton Board of The Trenton Board of Education meets GISEducation meets GIS

Mapping School Attendance Catchment Mapping School Attendance Catchment AreasAreas

Trish LongTrish Long

Senior PlannerSenior Planner

City of TrentonCity of Trenton

Department of Housing and Economic DevelopmentDepartment of Housing and Economic Development

June 2010June 2010

The SettingThe Setting

# of K-8 schools in Trenton: 20# of K-8 schools in Trenton: 20 # of schools reconstructed since 2000: # of schools reconstructed since 2000:

44 # of schools to be closed in 2010: 3# of schools to be closed in 2010: 3 Board of Education Street DirectoryBoard of Education Street Directory

30 page listing, including 30 page listing, including street name , low address, high address, street name , low address, high address,

school name, “Odd Even,” gradeschool name, “Odd Even,” grade last revised in 1997last revised in 1997 no existing electronic fileno existing electronic file Over the years, changes were either Over the years, changes were either

handwritten on the front cover of the street handwritten on the front cover of the street directory or remained in a staff person’s directory or remained in a staff person’s head.head.

Introduction

Project Goals

Our Approach

The Future

GOAL 1: To create a new Street GOAL 1: To create a new Street Directory using up-to-date Directory using up-to-date centerline data. This Directory centerline data. This Directory could potentially be used by:could potentially be used by: Central Registration and the Central Registration and the

Transportation/Busing Transportation/Busing DepartmentDepartment

GOAL 2: To use the updated GOAL 2: To use the updated street directory to create a street directory to create a map of school attendance map of school attendance catchment areascatchment areas

Introduction

Project Goals

Our Approach

The Future

STEP 1: Enter street directory data into a STEP 1: Enter street directory data into a spreadsheetspreadsheet

STEP 2: Reconcile the Street Directory STEP 2: Reconcile the Street Directory data with the City’s new Master data with the City’s new Master Street File to:Street File to:

Identify streets missing from the directoryIdentify streets missing from the directory Determine if there are homes on the new Determine if there are homes on the new

streets (tax assessor was able to answer streets (tax assessor was able to answer these questions)these questions) No residences? Keep street in the dataset, No residences? Keep street in the dataset,

but do not assign a school to that street, at but do not assign a school to that street, at this time.this time.

Improve the quality of information Improve the quality of information associated with each street segmentassociated with each street segment e.g., verify street names , break out “lo-e.g., verify street names , break out “lo-

high” into FromLeft, ToLeft, FromRight, high” into FromLeft, ToLeft, FromRight, ToRight, correct school assignments, ToRight, correct school assignments, incorporate notesincorporate notes

Introduction

Project Goals

Our Approach

The Future

STEP 3:STEP 3:

Once the street data was Once the street data was updated, we began assigning updated, we began assigning the schools to each street. the schools to each street.

Here is a sample what the Here is a sample what the Directory now looks like:Directory now looks like:

Grades Kindergarten to 8th

From/To LeftFrom/To Right

Introduction

Project Goals

Our Approach

STEP 4:STEP 4:Join the updated Street Directory Join the updated Street Directory with the new Master Street File with the new Master Street File (centerline data) in ArcGIS. (centerline data) in ArcGIS.

STEP 5:STEP 5:Map the data to illustrate the Map the data to illustrate the problems/omissions. The map problems/omissions. The map allowed us to see and make the allowed us to see and make the necessary changes.necessary changes.

The Future

Introduction

Project Goals

Our Approach

Initial ideas for the catchment area maps:Initial ideas for the catchment area maps:The areas would be represented by polygons.The areas would be represented by polygons.To identify gaps, we could generate one layer for To identify gaps, we could generate one layer for each grade level. each grade level. We could also generate a layer for each school.We could also generate a layer for each school.Lots of possibilities for overlaying layers.Lots of possibilities for overlaying layers.

Maps produced on May 14, 2010:Maps produced on May 14, 2010:1) All K – 5 grades1) All K – 5 grades2) All 6 – 8 grades2) All 6 – 8 grades3) All schools with grades K - 53) All schools with grades K - 54) All schools with grades K - 84) All schools with grades K - 8

The Future

Sample School Attendance Sample School Attendance Catchment Area maps…Catchment Area maps…

Introduction

Project Goals

Our Approach

The Future

Sample School Attendance Sample School Attendance Catchment Area maps…Catchment Area maps…

Introduction

Project Goals

Our Approach

The Future

Next Steps:Next Steps:

Final assignment of schools to Final assignment of schools to street segments by Board of Ed street segments by Board of Ed staffstaff

Republication of street directory Republication of street directory and mapsand maps

Ultimate solution: Upload school Ultimate solution: Upload school catchment data layers to catchment data layers to Trenton’s Internet DataViewerTrenton’s Internet DataViewer

Introduction

Project Goals

Our Approach

The Future

Trenton’s Internet DataViewer…Trenton’s Internet DataViewer…

is an On-Line,is an On-Line,interactiveinteractivemapping system mapping system containing data containing data from the Cityfrom the Cityof Trenton forof Trenton forpublic usepublic use