Kim Jong Wan, Han Byung Joon

The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 5, No. 11, pp. 2908-2914, Nov. 1998
10.3745/KIPSTE.1998.5.11.2908,   PDF Download:

Abstract

This paper presents an intelligent signal controller for controlling the traffic lights on traffic junction network with dynamic traffic flow, where a junction is connected to adjacent junctions on four sides. Prior researches have been done on the single traffic function. However, it is difficult to apply single junction controller to real traffic situation. In this paper, we develop a fuzzy traffic network controller which adjusts the extension time of current green phase by using the fuzzy input variables such as the number of entering cars the green light, the number of waiting cars during the red light, and the traffic volume. The proposed method was compared to the existing junction signal control methods on various traffic simulations. Simulation results show that the proposed fuzzy logic controller outperforms the existing controllers in terms of average delay time of cars and the cost function defined in this paper.

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