
How to code roundabouts – Part 1
November 2019: How to code roundabouts for different roundabout layouts in Aimsun Next, ensuring correct lane usage and lane-changing behaviour from entry to exit.
March
Script – Martin Hartmann
Production – Victoria Savchenko
Voice – Molly Malcolm
In this video, we’ll show you a quick and convenient way to study assumption-based behavior of autonomous and connected vehicles. You can model connected and autonomous vehicles (or CAVs as they are known) by adjusting Car Following, Lane Changing and Gap Acceptance behavioral models.

November 2019: How to code roundabouts for different roundabout layouts in Aimsun Next, ensuring correct lane usage and lane-changing behaviour from entry to exit.

Lua is a lightweight scripting language that allows users to write custom cost functions while also enabling faster run times for complex models. In this month’s technical note, Tessa Hayman explains how Lua differs from Python and the benefits it can bring to your Aimsun Next models.
SHARE
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/