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A Traffic congestion judgement Algorithm development for signal control using taxi gps data
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 Title & Authors
A Traffic congestion judgement Algorithm development for signal control using taxi gps data
Lee, Choul Ki; Lee, Sang Deok; Lee, Yong Ju; Lee, Seung Jun;
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COSMOS system which was developed in Seoul for real-time signal control was designed to judge traffic condition for practicing signal operation. However, it occurs efficiency problem that stop line detection and queue length detection could not judge overflow saturation of street. For that reason, following research process GPS data of Seoul city`s corporationowned taxi to calculate travel speed that excluded existing system of stop line detection and queue length detection. Also, "Research of calculating queue length by GPS data" which was progressed with following research expressed queue length. It is based on establishing algorithm of judging congestion situation. The algorithm was applied to a few areas where appeared congestion situation consistently to confirm real time traffic condition with established network. [Entrance of the National Sport Institute Gangnam station Intersection, Yuksam station intersection National Sport Institute.
GPS data;congestion situation;overflow saturation;Queue length;travel speed;
 Cited by
Seoul Metropolitan Police Agency(2002), Seoul Metropolitan Police Agency, real-time signal control system improved reports.

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Cityhall of SEOUL,, 2016.05.19.