Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany
Adamatzky, A. (2012) Schlauschleimer in Reichsautobahnen: Slime mould imitates motorway network in Germany. Kybernetes, 41 (7/8). pp. 1050-1071. ISSN 0368-492X
Publisher's URL: http://www.emeraldinsight.com/journals.htm?issn=03...
The German motorway, or 'autobahn', is characterised by long traditions, meticulous state planning, historical misbalance between West and East Germany's transport networks, and highest increase in traffic in modern Europe, posing a need for expansion and/or restructuring. We attempt to evaluate the structure of autobahns using principles of intrinsic optimality of biological networks in experiments with slime mould of Physarum polycephalum. In laboratory experiments with living slime mould we represent major urban areas of Germany with sources of nutrients, inoculate the slime mould in Berlin, wait till the slime mould colonises all major urban areas and compare the statistical structure of protoplasmic networks with existing autobahn network. The straightforward comparative analysis of the slime mould and autobahn graphs is supported by integral characteristics and indices of the graphs. We also study the protoplasmic and autobahn networks in the context of planar proximity graphs.
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