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SFB 559: Modeling of large networks in logistics (1998-2008) - Subprojects M1 and M2

Subproject M1: Structured GNL models and efficient simulation

The DFG-funded Collaborative Research Center (SFB) 559 pursues the goal of supporting the planning, realization and operation of large-scale networks in logistics (GNLs). The support is to be achieved by way of model-based assessment and evaluation of GNLs. As a framework paradigm for modeling, process chains are to be used as a matter of priority. In this subproject, the process chain paradigm will be extended and specified in such a way that, in addition to the usual technical performance variables (such as throughput, inventory, on-time delivery), economic and ecological aspects can also be evaluated. Furthermore, this subproject aims at making such extended process chains accessible to an efficient simulative investigation. For this purpose, suitable decomposition and aggregation approaches and their usability for the development of efficient simulation methods will be investigated.

Subproject M2: Efficient analysis methods

In the field of computer science, highly efficient non-simulative analysis methods are known for certain paradigms. The use of such methods is especially suitable for the design-accompanying rough exploration of GNLs. The aim of this subproject is the transfer and necessary adaptation or extension of these analysis methods for GNLs. The methods include traditional techniques from queueing theory (e.g. product form solutions), numerical techniques for the analysis of stochastic processes, as well as recently developed forms of structured Markov chain analysis for hierarchical models.

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Location & approach

The campus of the Technical University of Dortmund is located near the Dortmund West motorway junction, where the Sauerland line A45 intersects with the Ruhrschnellweg B1/A40. The Dortmund-Eichlinghofen exit on the A45 leads to the south campus, the Dortmund-Dorstfeld exit on the A40 to the north campus. The university is signposted at both exits.

The S-Bahn station "Dortmund Universität" is located directly on the north campus. From there, the S-Bahn line S1 runs every 15 or 30 minutes to Dortmund main station and in the opposite direction to Düsseldorf main station via Bochum, Essen and Duisburg. The university can also be reached by bus lines 445, 447 and 462. Timetable information can be found on the website of the Rhein-Ruhr transport association, and DSW21 also offers an interactive network map.

One of the landmarks of the TU Dortmund is the H-Bahn. Line 1 runs every 10 minutes between Dortmund Eichlinghofen and the Technology Center via Campus South and Dortmund University S, line 2 runs every 5 minutes between Campus North and Campus South. She covers this distance in two minutes.

From Dortmund Airport you can take the AirportExpress to Dortmund Central Station in around 20 minutes and from there you can take the S-Bahn to the university. Düsseldorf Airport, which is about 60 kilometers away, offers a larger range of international flight connections and can be reached directly by S-Bahn from the university train station.