Via Changelog

Visualize and analyze MATSim simulations


Version 24.1 – released March 23, 2024

General Improvements

Public Transport

Movie Recording

Map Backgrounds


Other Improvements and Bugfixes

Version 22.2 – released August 22, 2022

Shapes / GeoData

New Label Layer

A new layer allows to quickly place text and symbols to create labels.


Vehicles’ trajectories can be exported from Via (think “fake GPS traces”).

Other improvements

Version 22.1 – released February 11, 2022

Public Transport

It is now possible to analyze more than one transit route on a common network segment, and to visualize the results directly on the map instead of only in charts. In addition, the import of public transit schedules got more robust, better supporting the loading of partially invalid schedules (e.g. including transit routes without departures, missing network routes).


Support of TSV (tab-separated values) files.


Optionally show empty zones withing the aggregation extent.


Network-Export can be scripted.

Other improvements

Version 21.1 – released April 14, 2021


The OD Aggregator can now visualize relations between zones. Relations are filterable in order to keep the visualization tidy and helpful.


MP4 and ProRes encoding got 20-25% faster, and when converting transparent images to movies, a color can be set for the background.


Scripting can be made interactive (e.g. asking the user for a file or directory), and can work with externally defined parameters for better automating Via in workflows.

Other Improvements

Version 20.3 – released December 10, 2020


Various layers now support visualization of multiple attribute values as small charts. Layers currently supporting this visualization style are:

Stuck Agents Analysis

Via is great at visualizing and analyzing the agents performing their activities and legs. But agents getting stuck in the simulation during their day are hard to analyze, as they just disappear at some point in time. Via includes now a new, special analysis to figure out, when and where agents are getting stuck in order to help to figure out why they get stuck. The analysis will show when agents get stuck and where they were last observed, e.g. on which links or at what transit stops. More details are available in the Via manual.

Other improvements

In addition, there were several smaller improvements and some bugs fixed:

Version 20.2 – released August 19, 2020

In addition, there were several smaller improvements and some bugs fixed:

Version 20.1.1 – released April 24, 2020

Smaller improvements and fixed bugs:

(Version 20.1.0 was never released)

Version 19.2.1 – released July 18, 2019

Bug Fix:

Version 19.2 - released May 14, 2019

New Features:


Bug Fixes:

Version 19.1 - released March 12, 2019

New Features:


Bug Fixes:

New Features:

Version 1.8.3 - released October 15, 2018

New Features:


Bug Fixes:

Version 1.8.2 - released April 10, 2018

Version 1.8.1 - released February 20, 2018

Earlier versions

All versions listed below were released by Senozon.

Limited support for these versions is provided by Simunto. In general, only the latest version of Via receives full support.

Version 1.8.0 - released August 30, 2017

Version 1.7.1 - released October 28, 2016

Version 1.7.0 - released June 6, 2016

Version 1.6.1 - released January 8, 2016

Version 1.6.0 - released October 26, 2015

Version 1.5.1 - release March 31, 2015

Version 1.5.0 – released January 30, 2015

Version 1.4.5 – released October 20, 2014

Version 1.4.3 – released November 05, 2013

Version 1.4.2 – released October 25, 2013

Version 1.4.1 – released September 19, 2013

Version 1.4.0 – released September 18, 2013

Version 1.3.0 – released January 21, 2013

Version 1.2.0 – released July 11, 2012

Version 1.1.1 – released March 06, 2012

Version 1.1.0 – released Januar 20, 2012

Version 1.0.0 – released July 27, 2011