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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2011  >  11(2): 121-126
LI Song, KONG Fan-cun, GUAN Ke-ping. Automatic acquisition system of vessel traffic conflict data in precautionary area[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 121-126. doi: 10.19818/j.cnki.1671-1637.2011.02.020
Citation: LI Song, KONG Fan-cun, GUAN Ke-ping. Automatic acquisition system of vessel traffic conflict data in precautionary area[J]. Journal of Traffic and Transportation Engineering, 2011, 11(2): 121-126. doi: 10.19818/j.cnki.1671-1637.2011.02.020
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Automatic acquisition system of vessel traffic conflict data in precautionary area

doi: 10.19818/j.cnki.1671-1637.2011.02.020

  • School of Merchant Marine, Shanghai Maritime University, Shanghai 200135, China

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  • Author Bio:

    LI Song(1981-), male, doctoral student, +86-21-58850828, embody@126.com

    KONG Fan-cun(1955-), male, professor, +86-21-58850828, fckong@mmc.shmtu.edu.cn

  • Received Date: 2010-12-18
  • Publish Date: 2011-04-25
    Abstract
  • Traffic conflict research method was introduced, and a solving scheme of automatic acquisition for vessel traffic conflict data in ships' routing precautionary areas was proposed based on ECDIS, AIS and support vector machine (SVM). In the solving scheme, SVM classification model was acquired through training study of sample data, and the conflict degree was identified by using the model. SVM software package and SVM classification model were embedded in ECDIS, and the automatic acquisition system of vessel traffic conflict data was achieved combined with the real-time data of AIS. The vessel traffic conflict data of precautionary area A for Yangtze estuary ships' routing in 72 h were acquired by using the system. Example result shows that the traffic flow and vessel traffic conflict data of precautionary area A in 72 h are 681 and 327 respectively. Severe, moderate and mild conflicts account for 10.7%, 21.4% and 67.9% of the total respectively. The running of the system is steady, and vessel traffic conflict data can be acquired and processed automatically.

     

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