Optimization of traffic on road networks

Annunziata Cascone, Ciro D'apice, Benedetto Piccoli, Luigi Rarità

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


This paper focuses on the optimization of traffic flow on a road network, modeled by a fluid-dynamic approach. Three cost functionals that measure average velocity, average traveling time, and total flux of cars, are considered. First, such functionals are optimized for two simple networks that consist of a single junction: one with two incoming and one outgoing roads (junctions of 2 × 1 type), and the other with one incoming and two outgoing roads (junctions of 1 × 2 type). The optimization is made with respect to right of way parameters and traffic distribution coefficients, obtaining an explicit solution. Then, through simulations, the traffic behavior for complex networks is studied. The main result is that the local optimization ensures a very good result also for the complete network. This is shown by the case study of Re di Roma Square, a big traffic circle of the urban network of Rome.

Original languageEnglish (US)
Pages (from-to)1587-1617
Number of pages31
JournalMathematical Models and Methods in Applied Sciences
Issue number10
StatePublished - 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Applied Mathematics


  • Optimization
  • Road traffic
  • Simulation


Dive into the research topics of 'Optimization of traffic on road networks'. Together they form a unique fingerprint.

Cite this