Configure a Network Dataset using ArcGIS Pro

Introduction

This tutorial guides you through the process of configuring a network dataset in ArcGIS Pro to analyze transportation options, such as determining how many people can walk to various destinations within a specified time frame. By the end of this guide, you will learn how to create different travel modes, define costs, and apply restrictions to enhance your network analysis.

Step 1: Access the Network Dataset

• Open ArcGIS Pro and navigate to your project.
• Locate the network dataset you want to configure.
• Right-click on the dataset and select Properties to access the settings.

Step 2: Create a New Travel Mode

• In the properties window, go to the Travel Attributes section.
• Click on Add Travel Mode to create a new travel mode.
• Name the travel mode (e.g., Walk Time) and set the type to Walking.

Step 3: Define Impedance

• Under the Costs tab, add a new cost for the travel mode named WalkTime.
• This cost will represent the time it takes to traverse each segment of the network.
• Point to the relevant field in your dataset that contains the time information (e.g., Time field).

Step 4: Establish Restrictions

• Go to the Restrictions tab to limit pedestrian access to certain network segments.

• Use the same dataset (e.g., Centerlines dataset) and set up a Field Script.

• Define a function called noPeds using the following Python code:

  def noPeds(F_Class):
      return F_Class in ['A63', 'A10']
  

• This function indicates that pedestrians cannot access segments with a functional classification of A63 or A10.

Step 5: Configure Impedance and Restrictions

• Return to the Travel Modes tab.
• Set the impedance for the WalkTime travel mode and enable the pedestrian restrictions you defined.

Step 6: Build the Network

• Once your travel mode is configured, navigate to the Network menu.
• Select the option to Build Network to apply the changes you've made.

Step 7: Create a New Analysis Layer

• Go back to your map view and open the Analysis tab.
• Expand the Network Analysis tools and select New Route.
• Choose your newly created travel mode from the options available.

Step 8: Perform the Analysis

• Create stops for your route based on your analysis needs.
• Change the travel mode to Walk Time and run the analysis.
• Review the results, which should reflect a more direct path compared to the previous drive time analysis.

Conclusion

In this tutorial, you learned how to configure a network dataset in ArcGIS Pro by creating a walking travel mode, defining costs, and applying restrictions based on network attributes. This setup allows for more accurate analysis of pedestrian accessibility to various destinations. As a next step, explore further customization options or apply this knowledge to more complex datasets for richer analysis. Happy mapping!