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All technical notes

Distribution and Modal Split Functions

January 2018: Margarida Delgado explains how the Distribution and Modal Split steps are now split into two separate processes to give you greater flexibility when choosing which model to work with, and to give you more control at each step.

Using groupings of centroids to split zones

August 2017: Want to update your strategic model zoning system to organise the ever-increasing amount of data available? Dimitris Triantafyllos and Paolo Rinelli show you how to split zones to better represent the entrance and exit of the traffic volumes in the network.

Turning Penalty Function

June 2017: Dimitris Triantafyllos and Carles Illera explain how to use a Turning Penalty Function that can perceive costs from a control plan, and how to model stop/yield signs in macro using Junction Delay Functions.

How to use Matrix Contents

March 2017: Marga Delgado shows you how to use Contents to group matrices into subfolders, which is particularly convenient when working with multiple matrices.

How to use Attribute Overrides

December 2016: Maud Chassat describes how Aimsun’s attribute overrides can be extremely useful for modifying attributes of existing objects.

DTA: Speed up your DUE convergence

September 2016: A low number of iterations dramatically decreases the total computation time to run a DUE – Josep Perarnau shows you how to cut initialization time in half by using a subset instead of the full path assignment result file.

Python: from function to attribute

August 2016: Most users are familiar with creating their own attributes within objects within an Aimsun model. Grant MacKinnon explains how you can also add a column to an object where a value is returned based on some Python Code, allowing you to calculate a value on the fly.

Using the Revisions tool for teamwork

June 2016: Dimitris Triantafyllos explains how the Aimsun Revisions tool allows a modelling team to work within a single file, for faster and less error-prone collaboration.

Macro Function Components

March 2016: Marga Delgado explains how to use macro function components to produce extra outputs when executing an assignment.

Geometry Configurations Part 1 – Workflow

December 2015: Andreu Tarrida brings you the first in a four-part series on the Geometry Configurations feature – this note introduces the topic and gives you a brief tour of the workflow.

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