Introduction

LUNA (Simulating the demand for Long-distance travel Using a Non-OD-matrix based Approach) is a System Dynamics long-distance travel demand model developed in the European 7th Framework Programme of Research, öffnet eine externe URL in einem neuen Fenster project ORIGAMI (Optimal Regulation and Infrastructure for Ground, Air and Maritime Interfaces).

Installation

The model LUNA is made available in the file format “vpm” which stands for Vensim Packaged Model. This type of models can be run with the software “Vensim Model Reader” which can be downloaded from the Vensim(r), öffnet eine externe URL in einem neuen Fenster homepage for free (Link, öffnet eine externe URL in einem neuen Fenster). In order to be able to run LUNA the user has to install the “Vensim Model Reader”. For base year input and scenario definition Microsoft Excel(r), öffnet eine externe URL in einem neuen Fenster is needed. To install LUNA the user has to unpack all files from the file “LUNA_V30.zip” into one directory. The name and location of the directory can be selected freely. Nevertheless the internal order of the unpacked files and directory has to be kept as it is. The file “LUNA_V30.vpm” is the core model. The directory “data” contains eight xls-files. One of this files (“origami_data.xls”) contains the base year input data. The other seven files provide scenario definition data. More information is given in the Guidebook (PDF), öffnet eine Datei in einem neuen Fenster stored in the directory “guidebook”.

Download Model

References

Pfaffenbichler, P., Emberger, G. and Shepherd, S. (2012) Estimating future long-distance travel demand up to 2050 utilising the System Dynamics based model LUNA (Simulating the demand for Long-distance travel Using a Non-OD-matrix based Approach), European Transport Conference, 8-10 October 2012, Glasgow.

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Logo 7. Rahmenprogramm

Von der Europäischen Kommission kofinanziertes Projekt innerhalb des Siebten Rahmenprogramms, Thema 7 Verkehr, Vertragsnummer 265600