Abstract |
A small number of models for transportation networks
(modelling street, river, or vessel networks, for instance) has been studied
intensely during the past decade, in particular the so-called branched
transport and the so-called urban planning. They assign to each network the
total cost for transporting material from a given initial to a prescribed final
distribution and seek the cost-optimal network. Typically, the considered
transportation cost per mass is smaller the more mass is transported together,
which leads to highly patterned and ramified optimal networks. I will present
novel formulations of these models which allow a better interpretation as an
optimal design problem. |