Building a scenario

Building a scenario

This guide walks you through setting up a scenario with traffic datasets and network changes.

Step 1: Open a scenario

From the project page, click on a scenario to open it. The map view opens with the scenario’s road network.

An empty scenario, no datasets yet.

Step 2: Add datasets

On the left panel, click the + button to add a dataset. You can:

• Link an existing dataset from the project
• Create a new dataset — choose between:
  • Traffic counts — simulate existing traffic from counter data
  • Locations — simulate traffic to/from a single location
  • Manual — draw origin-destination trips by hand

For more details on dataset types, see the Datasets reference page.

Each dataset appears in the left panel with a color swatch. Click the swatch to change the color used on the map.

Select existing datasets or create a new one.

Step 3: Edit the road network

Click Edit to enter the network editor. Here you can:

• Select a road segment and change its properties (road type, speed limit, access restrictions, one-way)
• Close a road entirely by setting it to Closed
• Save your changes when done

Network changes only apply to this scenario — other scenarios keep the original network.

Step 4: View the results

After adding datasets and making network changes, traffic routes appear on the map. Line thickness represents the number of vehicles on each road segment.

You can:

• Click on a segment to see detailed traffic counts
• Use the importance threshold slider to hide low-traffic segments
• Toggle dataset colors to distinguish different traffic sources

View routes by digging in with the selected link feature.

Tips

• Start with a baseline: keep Scenario 0 unchanged so you have something to compare against.
• Reuse datasets: the same dataset can be linked to multiple scenarios. This way you only define traffic demand once.
• Use the network selector: when creating counters or locations datasets, you can choose which network version to calculate on.