Optimal transportation networks as flat chains

  • Emanuele Paolini

    Università degli Studi di Firenze, Italy
  • Eugene Stepanov

    Università di Pisa, Italy


We provide a model of optimization of transportation networks (e.g.\ urban traffic lines, subway or railway networks) in a geografical area (e.g. a city) with given density of population and that of services and/or workplaces, the latter being the destinations of everyday movements of the former. The model is formulated in terms of Federer-Fleming theory of currents, and allows to get both the position and the necessary capacity of the optimal network. Existence and some qualitative properties of solutions to the respective optimization problem are studied. Also, in an important particular case it is shown that the model proposed is equivalent to another known model of optimization of optimal transportation network, the latter not using the language of currents.

Cite this article

Emanuele Paolini, Eugene Stepanov, Optimal transportation networks as flat chains. Interfaces Free Bound. 8 (2006), no. 4, pp. 393–436

DOI 10.4171/IFB/149