Configure a Network Dataset using ArcGIS Pro
Table of Contents
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
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Go to the Restrictions tab to limit pedestrian access to certain network segments.
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Use the same dataset (e.g., Centerlines dataset) and set up a Field Script.
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Define a function called
noPeds
using the following Python code:def noPeds(F_Class): return F_Class in ['A63', 'A10']
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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!