Demand-Based Site Selection for Fire Stations Using a Network Allocation Model

A fire truck is parked on the street.

Author: Nicolas R. Malloy

Table of Contents

  1. Demand-Based Site Selection for Fire Stations Using a Network Allocation Model
  2. Setting up Your Workspace
  3. Preparing the Data
  4. Skill Drill: Clip the Roads Layer to the City of Arcata and McKinleyville
  5. Skill Drill: Add a Time Cost Attribute to the Roads Layer
  6. Skill Drill: Creating a CSV Table to Import As XY Data
  7. Skill Drill: Geocoding an Address  and Creating a CSV Table to Import As XY Data
  8. Skill Drill: Adding the Fire Incident History as XY Data
  9. Creating A Network Dataset
  10. Setting up a Network Allocation Model
  11. Loading Facilities into the Model
  12. Loading the Demand Points into the Model
  13. Adjusting the Analysis Setting of the Model
  14. Running the Network Allocation Model
  15. Skill Drill: Using the Maximize Attendance Problem Type
  16. Skill Drill: Adding Existing Fire Stations to the Model
  17. Skill Drill: Creating a Map of the Results

In this lab, you will explore modeling network paths using a network allocation model.  You will create a network dataset, which will allow you to allocate resources based on demand weight and create least-cost paths along a network.


Learning Outcomes

  • Review how to acquire data from a public source
  • Geocode an address
  • Review adding XY data
  • Review Data Management Tools: project, define projection
  • Create a network dataset
  • Model network allocation based on the least-cost paths
  • Adjust model parameters to allocation resources based on demand weight
  • Evaluate the results of a network analysis based on demand

Scenario

In this scenario, the Arcata Fire Protection District has decided to explore the possibility of updating their facilities and relocating the three existing fire departments serving the cities of Arcata and McKinleyville. Some potential sites have been identified, but it is not certain which location will optimize services within the district. You will attempt to answer this question using a location-allocation solver available through the ArcGIS Network Analyst extension.

You will use the following criteria in your analysis:

  • A history of incident responses
  • A two minute response time window which captures the greatest demand based on incident history
  • A five minute response time window which captures the greatest demand based on incident history
  • A comparison of several proposed sites within the Arcata Fire Protection District and related areas
  • A comparison between proposed sites and existing fire stations

Conduct this analysis using the Universal Transverse Mercator (UTM) system along with the North American Datum of 1983 (NAD83). Humboldt County lies in Zone 10 of the UTM system. All of your data must be in this spatial reference system at the start of your analysis. Create working copies of your data in this spatial reference system using the Project tool in ArcMap as needed.