Walk or take the bus? Modeling mode choice with dynamic transit assignment.
How do we decide whether to walk somewhere or take the bus and how do you model that decision in Aimsun Next?
Aimsun Next Use Aimsun Next Technical notes
Browse over 80 technical notes on using Aimsun Next, covering the following topics:
Dynamic modeling
Traffic management
Extendibility: scripts and APIs
Visualizing data
Importing data
Working efficiently
Strategic modeling
All technical notes
Make great videos with the Aimsun recorder
April 2017: Laura Torres, Sergi Pujadas and Emmanuel Bert explain the nuts and bolts of how to get your Aimsun videos looking sharp and running smoothly.
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.
Ordering Objects in the Project Window
February 2017: Sara Pardo shows you how to customize the order of your objects for clearer and more semantic organisation.
Modelling connected vehicles using Aimsun API: Cooperative Adaptive Cruise Control
January 2017: Paolo Rinelli and Dimitris Triantafyllos explain a technique for modelling connected vehicles using Aimsun API: Cooperative Adaptive Cruise Control.
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.
The Grouping Category Tool (Part 2): Screenlines
November 2016: Tamara Djukic explains how to use groupings of sections or detectors to define screenlines – a great technique for more efficient OD demand adjustment and validation.
The Grouping Category Tool (Part 1): How to access model input and output data efficiently
October 2016: Tamara Djukic explains how the Grouping Category tool can speed up and improve the way you apply traffic data to calibration and validation of traffic models or simulation input and output data processing. With additional input from Timothy Lim and Phoebe Ho.
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.
Visualising urban, regional and through traffic
Visualising urban, regional and through traffic in Aimsun using the Select Link Analysis Tool and View Modes.
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 4 – Managing nodes and using existing nodes
February 2016: Andreu Tarrida writes this final post in a four-part feature on version control.
Geometry Configurations Part 3 – Control Plans
January 2016: Andreu Tarrida offers part three of the series on Geometry Configurations feature: Control Plans.
Geometry Configurations Part 2 – Duplicating Public Transport Lines and Public Transport Plans
January 2016: Andreu Tarrida. A technical note on the Geometry Configurations feature: Duplicating Public Transport Lines and Public Transport Plans.
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.
Exporting probe data using Aimsun micro API
July 2015: Dimitris Triantafyllos discusses how this Aimsun API allows research centres to work on the understanding of the innovative uses of probe vehicle data, available applications, visualisations, performance measures, and management techniques.
Using bus travel times from a dynamic simulation for transit assignment
Use this approach for estimating the effect on distribution and mode split of operational changes in the transit system, such as the introduction of signal priority and reserved lanes along a corridor.
Aimsun vehicle paths
September 2014: Josep Perarnau explains the different approaches for analysing vehicle paths.
Defining a four-step model experiment
August 2014: Margarida Delgado explains the advantages of the chain structure of the four-step model experiment in Aimsun.
