
Random seeds in transport models
This technical note will explain the different sources of stochasticity within micro and meso experiments in Aimsun Next and how you can control them.
Our new embedded pedestrian simulator is super fast, comes free of charge in the main installer, simulates an unlimited number of pedestrians, and runs in Windows, Mac and Linux. If you have models already built for Legion for Aimsun, the new pedestrian simulation can run them with no modifications. Take the video tour now!

This technical note will explain the different sources of stochasticity within micro and meso experiments in Aimsun Next and how you can control them.

June 2020: Our new embedded pedestrian simulator is super fast, comes free of charge in the main installer, simulates an unlimited number of pedestrians.
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Aimsun Next 26
Aimsun (2026). Aimsun Next 26 User’s Manual, Aimsun Next Version 26.0.0, Barcelona, Spain. Accessed on: December. 3, 2025. [Online].
Available: https://docs.aimsun.com/next/26.0.0/
Aimsun Next 26
@manual {AimsunManual,
title = {Aimsun Next 26 User’s Manual},
author = {Aimsun},
edition = {Aimsun Next 26.0.0},
address = {Barcelona, Spain},
year = {2026. [Online]},
month = {Accessed on: Month, Day, Year},
url = {https://docs.aimsun.com/next/26.0.0},
}
Aimsun Next 26
TY – COMP
T1 – Aimsun Next 26 User’s Manual
A1 – Aimsun
ET – Aimsun Next Version 26.0.0
Y1 – 2026
Y2 – Accessed on: Month, Day, Year
CY – Barcelona, Spain
PB – Aimsun
UR – [In software]. Available:
https://docs.aimsun.com/next/26.0.0/