Lab 5: Applications in GIS

This week's lab covered spatial accessibility modeling.  To perform the analysis, the network analysis extension needed to be enabled.  A few of the tools within network analysis that were focused on this week was Closest Facility, New Service Area, and Spatial Joins.

To create the map below, I used the New Service Area option from the network analysis toolbar.  I found the service area for each of the 7 college campuses.  The tolerance was 5000 meters and it used breaks of 5, 10, and 15 minutes.  After clicking the Solve button, I was able to see the results of the service areas.

Next, I created a new shapefile that excluded Cypress Creek campus.  I reran the New Service Area for the 6 college campuses.  I used the same setting as I did for find the service areas for the 7 campuses.  I converted the block group shapefile to centroids by using the Feature to Point tool.  By doing this, I was able to see how the service areas overlay with the block groups.

The results show how the service area decreases if the Cypress Creek campus closes.

Campus Service Areas