We deal with the optimization of traffic flows at road junctions, in order to manage congestion phenomena. Using a fluid-dynamic model for the description of the car densities evolution, the attention is focused on a decentralized approach. Different cost functionals have been considered and they have been optimized with respect to right of way parameters and distribution coefficients. The redistribution of flows at nodes so as to maximize the velocity of emergency vehicles on assigned paths is also considered. The obtained results have been tested by simulations of urban networks. In some cases, decongestion effects are confirmed estimating the time a car needs to cross a fixed route on the network.
Optimization of traffic flows in urban networks
CUTOLO, ALFREDO;D'APICE, Ciro;MANZO, Rosanna
2011-01-01
Abstract
We deal with the optimization of traffic flows at road junctions, in order to manage congestion phenomena. Using a fluid-dynamic model for the description of the car densities evolution, the attention is focused on a decentralized approach. Different cost functionals have been considered and they have been optimized with respect to right of way parameters and distribution coefficients. The redistribution of flows at nodes so as to maximize the velocity of emergency vehicles on assigned paths is also considered. The obtained results have been tested by simulations of urban networks. In some cases, decongestion effects are confirmed estimating the time a car needs to cross a fixed route on the network.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
