[Q&A] Issue with simulating the pt modes in sioux-falls with custom bike and pedestrian modes.

[Alirockman1]

Provide the MATSim version you are using. You can find the version in the pom.xml. E.g. 2025.0.

2026.0-2025w49

Did you build a minimal example to reproduce the issue?

• Yes!

Describe the problem you are facing.

I am simulating the Sioux Falls scenario with a custom config file. The idea is to include bike and pedestrian network modes, in addition to the existing car mode. Note: A pedestrian is a walk on the network, and walking is a teleported mode.

The error is "ERROR ParallelPersonAlgorithmUtils$ExceptionHandler:165 Thread PersonPrepareForSim.0 died with exception while handling events.
org.matsim.core.router.TripRouter$UnknownModeException: unregistered main mode |network|: does not pertain to [pt, car, pedestrian, walk, bike]."

If possible, provide a link to your minimal example. This might be a GitHub repository.

No response

If you want, provide some background information about you and your project. This might help us understand your issue better.

I am a student working on my thesis using MATSIM and wanted to set up a reduced multi mode example.

[Janekdererste]

Hi @Alirockman1 ,

this indicates that the replanning encountered a synthetic person which has a leg with mode network in its plan. It seems like you have configured your simulation to handle pt, car, pedestrian, walk, and bike. You have to make sure that all of your persons only have legs with those modes. Otherwise, the simulation doesn't know what to do. You should check your population file (usually plans.xml) for correct modes.