Decentralized signal control for urban road networks

Tung Le, Péter Kovács, Neil Walton, Hai L. Vu, Lachlan L. H. Andrew, Serge S. P. Hoogendoorn

Research output: Contribution to journalArticleResearchpeer-review

79 Citations (Scopus)


We propose in this paper a decentralized traffic signal control policy for urban road networks. Our policy is an adaptation of a so-called BackPressure scheme which has been widely recognized in data network as an optimal throughput control policy. We have formally proved that our proposed BackPressure scheme, with fixed cycle time and cyclic phases, stabilizes the network for any feasible traffic demands. Simulation has been conducted to compare our BackPressure policy against other existing distributed control policies in various traffic and network scenarios. Numerical results suggest that the proposed policy can surpass other policies both in terms of network throughput and congestion.
Original languageEnglish
Pages (from-to)431-450
Number of pages20
JournalTransportation Research Part C: Emerging Technologies
Publication statusPublished - 1 Sep 2015
Externally publishedYes


  • BackPressure
  • Traffic light control
  • Capacity region
  • Stability

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