• Title/Summary/Keyword: Optimal Traffic Signal Cycle

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Real Time Traffic Signal Plan using Neural Network

  • Choi Myeong-Bok;Hong You-Sik
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.5 no.4
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    • pp.360-366
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    • 2005
  • In the past, when there were few vehicles on the road, the T.O.D.(Time of Day) traffic signal worked very well. The T.O.D. signal operates on a preset signal cycling which cycles on the basis of the average number of average passenger cars in the memory device of an electric signal unit. Now days, with increasing many vehicles on restricted roads, the conventional traffic light creates startup-delay time and end-lag-time. The conventional traffic light loses the function of optimal cycle. And so, $30-45\%$ of conventional traffic cycle is not matched to the present traffic cycle. In this paper we proposes electro sensitive traffic light using fuzzy look up table method which will reduce the average vehicle waiting time and improve average vehicle speed. Computer simulation results prove that reducing the average vehicle waiting time which proposed considering passing vehicle length for optimal traffic cycle is better than fixed signal method which doesn't consider vehicle length.

A Study on the Optimal Signal Timing for Area Traffic Control (지역 교통망 관리를 위한 최적 신호순서에 관한 연구)

    • Journal of the Korean Operations Research and Management Science Society
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    • v.24 no.2
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    • pp.69-80
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    • 1999
  • A genetic algorithm to determine the optimal signal sequence and double cycle pattern is described. The signal sequence and double cycle pattern are used as the input for TRANSYT to find optimal signal timing at each junction in the area traffic networks, In the genetic process, the partially matched crossover and simple crossover operators are used for evolution of signal sequence and double cycle pattern respectively. A special conversion algorithm is devised to convert the signal sequence into the link-stage assignment for TRANSYT. Results from tests using data from an area traffic network in Leicester region R are given.

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Algorithm of Optimal Traffic Signal Cycle using Neural Network and Fuzzy Rules (신경망 및 퍼지규칙을 이용한 최적 교통신호주기 알고리즘)

  • 홍용식;박종국
    • Journal of the Korean Institute of Telematics and Electronics C
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    • v.34C no.8
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    • pp.88-100
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    • 1997
  • This paper proposes a new concept for an optimal traffic signal cycle method which will reduce the average vehicle waiting time and improve average vehicle speed. Electro sensitive traffic system can extend the traffic cycle when there ar emany vehicles in the road or it can reduce the traffic consider vehicle length, so it can cause oveflow and reduce average vechicel waiting time at the intersection, we propose on optimal traffic cycle with fuzzy ruels and neural network. Computer simulation results prove that reducing the average vehicle waiting time which proposed considering passing vehicle's length for the optimal traffic cycle better than fixe dsignal method dosen't consider vehicle length.

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A Computer Simulation Model for the Determination of Optimal Cycle Time of Traffic Signal (최적 신호주기의 결정을 위한 컴퓨터 시뮤레이션 모델)

  • 권영식;박영택
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.5 no.6
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    • pp.63-68
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    • 1982
  • We can reduce delays and number of stops in the traffic area by means of optimal design of traffic signal system. A computer simulation model to simulate and predict the traffic signal system of Jong-Ro 4-th street was developed for determination of optimal cycle time. This simulation model was developed in relation to Jong-Ro 4-th street, but this model can be applied for other places with small modification.

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Optimal Traffic Signal Light (최적교통신호등)

  • 홍유식
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.40 no.4
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    • pp.181-192
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    • 2003
  • Increased vehicles on the restricted road, the conventional traffic light to losses the function of optimal cycle. The conventional traffic light dose not consider passenger car unit ,offset, and length of traffic intersection. As a result, 30~45% of conventional traffic cycle does not match the present traffic cycle. In this paper, we study the disard vantage of conventional traffic light and improve the vehicle average waiting time in the traffic intersection and vehicle average speed using fuzzy logic. Moreover, it will be able to forecast the optimal traffic information, road under construction and dangerous road using internet.

Artificial Traffic Signal Light using Fuzzy Rules

  • Kim Chjong-Soo;Hong You-Sik
    • Journal of the Korea Computer Industry Society
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    • v.5 no.9
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    • pp.1005-1016
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    • 2004
  • The conventional traffic light loses the function of optimal traffic signal cycle. And so, 30-45% of conventional traffic signal cycle is not matched to the present traffic signal cycle. In this paper proposes electro sensitive traffic light using fuzzy rules which will reduce the average vehicle waiting time and improve average vehicle speed. This paper is researching the storing method of 40 different kinds of sensor input conditions. Such as, car speed, delay· in starting time and the volume of cars in the real traffic situation. It will estimate the optimal green time in the 10 different intersections using Intelligent fuzzy method. Computer simulation results prove that reducing the average vehicle waiting time and offset better than fixed signal method which doesn't consider vehicle length.

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Optimal Traffic Information using Fuzzy Neural Network

  • Hong, You-Sik;Lee, Choul--Ki
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.3 no.1
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    • pp.105-111
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    • 2003
  • This paper is researching the storing of 40 different kinds of conditions. Such as, car speed, delay in starting time and the volume of cars in traffic. Through the use of a central nervous networking system or AI, using 10 different intersecting roads. We will improve the green traffic light. And allow more cars to easily flow through the intersections. Now days, with increasing many vehicles on restricted roads, the conventional traffic light creates prove startup-delay time and end-lag-time. The conventional traffic light loses the function of optimal cycle. And so, 30-45% of conventional traffic cycle is not matched to the present traffic cycle. In this paper proposes electro sensitive traffic light using fuzzy look up table method which will reduce the average vehicle waiting time and improve average vehicle speed. Computer simulation results prove that reducing the average vehicle waiting time which proposed considering passing vehicle length for optimal traffic cycle is better than fixed signal method which dosen't consider vehicle length.

Electro Sensitive Traffic Light using Fuzzy Look Up Table

  • Hong, You-Sik;Park, Chong-Kug
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1998.06a
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    • pp.596-700
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    • 1998
  • Nowadays, with increasing many vehicles on restricted roads, the conventional traffic light creates prove startup-delaytime and end-lag-time. The conventional traffic light loses the function of optimal cycle. And so, 30∼45% of conventional traffic cycle is not matched to the present traffic cycle. In this paper proposes electrosensitive traffic light using fuzzy look up table method which will reduce the average vehicle waiting time and improve average vehicle speed. Computer simulation results prove that reducing the average vehicle waiting time which proposed considering passing vehicle length for optimal traffic cycle is better than fixed signal method which doesn't consider vehicle length.

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Wireless Traffic Signal Light using Fuzzy Rules

  • Hong YouSik;Lu Wei-Ming;Yi JaeYoung;Yi CheonHee
    • Proceedings of the IEEK Conference
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    • summer
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    • pp.365-370
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    • 2004
  • In this paper, we wish to construct a optimal traffic cycle using wire remote control. if police vehicle or ambulance suddenly enter the traffic intersection, it will increase the traffic accident. In this paper, wireless traffic light use the radio traffic control signal and research about the hardware manufacture to check special detectors on urgency vehicles may safety and rapidly enter traffic intersection. Also, this paper present a traffic signal control conditions that analyzes different traffic intersection flows in cases of saturated flows, where the real traffic volume demand is large and the capacity constraints of bottlenecks have significant effects on the flow patterns. Through computer simulation this wireless traffic light has been proven to be much more safety and efficient than fixed traffic signal light which does not considering emergency vehicles for safety escort.

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Optimal Traffic Signal Cycle using Fuzzy Rules

  • Hong You-Sik;Cho Young-Im
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2005.04a
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    • pp.161-165
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    • 2005
  • In order to produce an optimal traffic cycle. We must first check how many waiting cars are at the lower intersection, because waiting queue is bigger than the length of upper traffic intersection. Start up delay time and vehicle waiting time occurs. To reduce vehicle waiting time, in this paper, we present an optimal green time algorithm using fuzzy neural network. Through computer simulation has been proven to be improved average vehicle speed than fixed traffic signal light which do not consider different intersection conditions.

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