Stefan Lämmer

Reglerentwurf zur dezentralen Online-Steuerung von Lichtsignalanlagen in Straßennetzwerken (9999)

Stefan Lämmer

Die Dissertationsschrift widmet sich einer systemtheoretischen Untersuchung zur verkehrsabhängigen Steuerung von Lichtsignalanlagen in Straßennetzwerken. Aus einem mathematischen Modell für den...

Reglerentwurf zur dezentralen Online-Steuerung von Lichtsignalanlagen in Straßennetzwerken (9999)

Stefan Lämmer

Die Dissertationsschrift widmet sich einer systemtheoretischen Untersuchung zur verkehrsabhängigen Steuerung von Lichtsignalanlagen in Straßennetzwerken. Aus einem mathematischen Modell für den...

Self-Control of Traffic Lights and Vehicle Flows in Urban Road Networks (2008)

Lämmer, Stefan, Helbing, Dirk

Based on fluid-dynamic and many-particle (car-following) simulations of traffic flows in (urban) networks, we study the problem of coordinating incompatible traffic flows at intersections. Inspired...

Self-Organized Network Flows (2007)

Helbing, Dirk, Siegmeier, Jan, Lämmer, Stefan

A model for traffic flow in street networks or material flows in supply networks is presented, that takes into account the conservation of cars or materials and other significant features of traffic...

Scaling laws in the spatial structure of urban road networks (2006)

Lämmer, Stefan, Gehlsen, Björn, Helbing, Dirk

The urban road networks of the 20 largest German cities have been analysed, based on a detailed database providing the geographical positions as well as the travel-times for network sizes up to...

Decentralised control of material or traffic flows in networks using phase-synchronisation (2006)

Lämmer, Stefan, Kori, Hiroshi, Peters, Karsten, Helbing, Dirk

We present a self-organising, decentralised control method for material flows in networks. The concept applies to networks where time sharing mechanisms between conflicting flows in nodes are...

Decentralised control of material or traffic flows in networks using phase-synchronisation (2006)

Lämmer, Stefan, Kori, Hiroshi, Peters, Karsten, Helbing, Dirk

We present a self-organising, decentralised control method for material flows in networks. The concept applies to networks where time sharing mechanisms between conflicting flows in nodes are...

Self-Organized Control of Irregular or Perturbed Network Traffic (2005)

Helbing, Dirk, Lämmer, Stefan, Lebacque, Jean-Patrick

We present a fluid-dynamic model for the simulation of urban traffic networks with road sections of different lengths and capacities. The model allows one to efficiently simulate the transitions...

Supply and Production Networks: From the Bullwhip Effect to Business Cycles (2004)

Helbing, Dirk, Lämmer, Stefan

Network theory is rapidly changing our understanding of complex systems, but the relevance of topological features for the dynamic behavior of metabolic networks, food webs, production systems,...

Network-Induced Oscillatory Behavior in Material Flow Networks and Business Cycles (2004)

Helbing,Dirk, Lämmer,Stefan, Witt,Ulrich, Brenner,Thomas

Network theory is rapidly changing our understanding of complex systems, but the relevance of topological features for the dynamic behavior of metabolic networks, food webs, production...

Network-Induced Oscillatory Behavior in Material Flow Networks and Business Cycles (2004)

Helbing, Dirk, Lämmer, Stefan, Witt, Ulrich, Brenner, Thomas

Network theory is rapidly changing our understanding of complex systems, but the relevance of topological features for the dynamic behavior of metabolic networks, food webs, production...

Self-Control of Traffic Lights and Vehicle Flows in Urban Road Networks

Stefan Lämmer, Dirk Helbing

Based on fluid-dynamic and many-particle (car-following) simulations of traffic flows in (urban) networks, we study the problem of coordinating incompatible traffic flows at intersections. Inspired...

Reglerentwurf zur dezentralen Online-Steuerung von Lichtsignalanlagen in Straßennetzwerken

Stefan Lämmer

Die Dissertationsschrift widmet sich einer systemtheoretischen Untersuchung zur verkehrsabhängigen Steuerung von Lichtsignalanlagen in Straßennetzwerken. Aus einem mathematischen Modell für den...