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In the study of complex systems---in particular self-organizing systems---the notions of emergence and higher order structures come up. A framework for studying them was given in [1,2] where the notion of a hyperstructures occur both in an intuitive and a formal sense. But in formalizations of...
Persistent link: https://www.econbiz.de/10005790732
Artificial Life and the more general area of Complex Systems does not have a unified theoretical framework although most theoretical work in these areas is based on simulation. This primarily due to an insufficient representational power of the classical mathematical frameworks for the...
Persistent link: https://www.econbiz.de/10005790647
This paper presents an overview of an approach to address complexity issues and real-life engineering problems in large, urban transportation systems. In this context we discuss the fundamental problem of designing a metropolitan transportation system which is both efficient and controlable.
Persistent link: https://www.econbiz.de/10005790822
Emergence is a universal phenomenon that can be defined mathematically in a very general way. This is useful for the study of scientifically legitimate explanations of complex systems, here defined as hyperstructures. A requirement is that the observation mechanisms are considered within the...
Persistent link: https://www.econbiz.de/10005790715
Large scale microscopic (i.e., vehicle-based) traffic simulations pose high demands on computational speed in at least two application areas: (i) real-time traffic forecasting, and (ii) long-term planning applications (where repeated 'looping" between the microsimulation and the simulated...
Persistent link: https://www.econbiz.de/10005790823
This paper presents a day-to-day re-routing relaxation approach for traffic simulations. Starting from an initial planset for the routes, the route-based microsimulation is exxecuted. The result of the microsimulation is fed into a re-router, which re-routes a certain percentage of all trips....
Persistent link: https://www.econbiz.de/10005837688
In biological systems higher order hyperstructures seem to occur both in an intuitive and a formal sense. Starting at a molecular level of description we have: molecules, polymers, supramolecular structures, organelles, cells, tissues, organs, etc. but in models and simulations of these systems...
Persistent link: https://www.econbiz.de/10005790635
We present a new style of molecular dynamics and self-assembly simulation, the Lattice Polymer Automaton (LPA). In the LPA all interactions, including electromagnetic forces, are decomposed and communicated via propagating particles, ``photons.'' The monomer-monomer bond forces, the molecular...
Persistent link: https://www.econbiz.de/10005790693
Persistent link: https://www.econbiz.de/10005790714
We use a very simple description of human driving behavior to simulate traffic. The regime of maximum vehicle flow in a closed system shows near-critical behavior, and as a result a sharp decrease of the predictability of travel time. Since Advanced Traffic Management Systems (ATMSs) tend to...
Persistent link: https://www.econbiz.de/10005790958