Program and case examples

Downloads

The current version is : Portable_Q-Traf v1307

(previous version was 1300b)

Installation

Q-Traf is a Windows portable app, so there is no installation needed. Just double-click on Q-Traf.exe to run it (by default Q-Traf.exe is in the root folder of each example provided).

Of course the program in itself is not enough ; one needs all the necessary folders and files of the input data. They are all provided in the examples to download. The list and details of the needed data, and their structures, are described in the “Users manual”.

How to use the examples

Q-Traf needs data (files and folders). To use Q-Traf with the provided examples, you need to download :

• At least one example. Each example contains the program Q-Traf and all the folders and files needed. All the files are text files (“.csv” files)
• The Users Manual

To see the results of a trips assignation of a provided example, you need to :

• have a GIS (as QGis, ArcGis, or another)
• Open a QGis project : Open the file *.qgz provided in the QGis folder, or create a new one and choose the correct SCR (indicated in the root folder )
• In the GIS, import the .csv files from the folder results (/_out_results_wkt) : Example/_out_results_wkt/troncons or links_xxx/”….uvp.csv” or “….TV.csv”
• and apply the correct graphic parameters (by copy/paste the graphic parameters of another similar layer -provided-)

To run a simulation and calculate a new traffic assignment, you need to :

• Run / launch Q-Traf.exe (in the root folder of each example provided)
• Choose the folder of the project (like Q-Traf_Ultra_Small_Square_1204f, Q-Traf_Small_Ullapool_1204f or another project)
• (the parameters are automatically loaded)
• Click “Run”
• Once the execution is finished, close the program
• The new results are then written in the folder “_out_results_wkt”
• Open the results in a GIS (see above)

Users Manual

Changelogs

Version 1307

Improved convergence method (Method of Successive Averages)

Version 1300b

Minor bugs fixed

Version 1204f

New interface ; all the parameters are now managed directly in the tabs.

Choice of speed unit (“mile per h” or “kilometer per h”)

Automatically recognized csv format (“,” or “;”) and decimal separator (“.” or “,”)

File parameters of older versions don’t work anymore with this version.

Version 1203a

Addition of a new assignment procedure (“Pseudo user equilibrium”, see the Users Manual).

Version 780

Modification of the structure of the file “2_veh_sub_parent_types_and_link_authorization.csv”.

File parameters of older versions don’t work anymore with this version.