Influence of VANET System on Movement of Traffic Flows in Emergency Situations

  • Algimantas Kajackas Vilnius Gediminas Technical University
  • Vidas Žuraulis Vilnius Gediminas Technical University
  • Edgar Sokolovskij Vilnius Gediminas Technical University
Keywords: VANET, vehicle communication, braking, emergency stop, time to collision, residual velocity,


The paper presents Vehicular Ad Hoc Network (VANET) system based on an analysis of the movement of a motorcade in an emergency situation. This analysis seeks to answer the question: when and under what conditions Emergency Message (EM) sent by Vehicle-to-Vehicle (V2V) system reaches the final target to help in preventing of serious accidents, such as multi-vehicle collisions. The model of calculation based on the key principles of vehicle braking enables finding the time to possible collision and the residual velocity of the vehicle. In the calculations, the average values of the driver’s reaction time are accepted; in addition, a sent emergency message is considered to be free of interference. Upon choosing different road and driving conditions, it is found what vehicle of the motorcade stops before the possible obstacle on emergency braking. The performance of vehicles with and without VANET system is compared.

Author Biographies

Algimantas Kajackas, Vilnius Gediminas Technical University

Faculty of Electronics, Department of Telecommunication Engineering

Prof. Habil. Dr.

Vidas Žuraulis, Vilnius Gediminas Technical University

Faculty of Transport Engineering, Department of Automobile Transport, Traffic Safety Laboratory,

Head of Traffic Safety Laboratory, PhD Student

Edgar Sokolovskij, Vilnius Gediminas Technical University

Faculty of Transport Engineering, Department of Automobile Transport

Assoc. Prof. Dr.


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How to Cite
Kajackas A, Žuraulis V, Sokolovskij E. Influence of VANET System on Movement of Traffic Flows in Emergency Situations. Promet [Internet]. 2015Jun.30 [cited 2023Feb.5];27(3):237-46. Available from: