Highway on-ramp control using fuzzy decision making

Tung Chien Chiang, Wen June Wang

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


This work presents a fuzzy logic-based highway on-ramp control (HORC) approach that works by controlling the traffic lights at the on-ramp to facilitate the flow of traffic onto the highway. The proposed HORC comprises a fuzzy logic system and a decision-making model. The former determines the switching probability of the traffic light, while the latter makes the decision concerning the switching of the traffic light. The HORC requires only the velocities and the difference of velocities of the vehicles that are entering the highway. Simulation results indicate that the proposed HORC outperforms pre-timed ramp control.

Original languageEnglish
Pages (from-to)205-213
Number of pages9
JournalJVC/Journal of Vibration and Control
Issue number2
StatePublished - Feb 2011


  • Fuzzy logic
  • highway
  • on-ramp control
  • traffic light


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