Modelling and analysis of mixed traffic flow with look-ahead controlled vehicles

Balázs Németh, Zsuzsanna Bede, P. Gáspár

Research output: Contribution to journalArticle

3 Citations (Scopus)


The paper presents the modelling of a mixed traffic flow in which look-ahead controlled vehicles with a speed control are driven together with conventional vehicles. Since the speed profile of the lookahead control may differ from that of the conventional vehicle, the structure of the traffic flow changes. The paper analyses the impact of vehicles applying look-ahead control strategy on the traffic flow. In a simulation-based analysis it is shown that the fundamental diagram of the traffic network changes. A new mixed-traffic model incorporates the nonlinearity of the traffic dynamics using a polynomial formula, in which the look-ahead cruise control is considered with a parameter-dependent form. Using these nonlinear forms the impact of the look-ahead vehicles on the stability of the traffic is examined through controlled invariant sets. In this analysis the sum-of-squares programming method is applied. The results are demonstrated through simulation examples using the VISSIM simulation environment.

Original languageEnglish
Pages (from-to)15639-15644
Number of pages6
Issue number1
Publication statusPublished - Jul 1 2017


  • analysis
  • Look-ahead control
  • Mixed-traffic
  • Traffic modelling

ASJC Scopus subject areas

  • Control and Systems Engineering

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