Calculation of safe speed and minimally admissible distance of closing of ships during radar information usage
Exceeding the safe speed and the minimum allowable distance when ships approach each other is considered as one of the main reasons for their collision, especially when using radar information when sailing in reduced visibility or in confined areas. When assigning a safe speed, among other factors, the rules recommend to take into account the state of visibility of the maneuverable capabilities of the ship, especially the distance required to completely stop the ship, as well as the characteristics, efficiency and limitations of radar equipment. But, besides the quality recommendations in the COLREGs, there are no quantitative estimates of the safe speed and excessive convergence of the ships. Each navigator subjectively assigns a safe speed and determines the minimum allowable approach distance for ships. Therefore, the development of a universal method for calculating safe speed and the minimum allowable distance when using radar information is relevant, and the method itself is effective when used on ships, especially when sailing in difficult navigation areas and with limited visibility. The developed method allows to automate the choice of safe speed and eliminate the subjective factor when it is appointed navigator
Transportation Safety Board of Canada. Statistical Summary: Marine Occurrences (2017). Canada.
Cockcroft, A., Lameijer, J. (2012). A Guide to the Collision Avoidance Rules. Butterworth-Heinemann, 200. doi: https://doi.org/10.1016/c2010-0-68322-2
Scripture, F. R. (1966). Marine Radar Collision Avoidance System Re-quirements. Navigation, 13 (4), 295–301. doi: https://doi.org/10.1002/j.2161-4296.1966.tb02172.x
Vahushchenko, L. L., Vahushchenko, A. L. (2010). Podderzhka reshenyi po raskhozhdenyiu s sudamy. Odessa: Fenyks, 108–110.
Vahushchenko, L. L. (2000). Sudno kak ob'ekt avtomatycheskoho upravlenyia. Odessa: OHMA, 140.
Maltsev, A. S. (2002). Manevryrovanye sudov pry raskhozhdenyy. Odessa: Morskoi trenazhernyi tsentr, 66–79.
Rodyonov, A. Y. (1966). Avtomatyzatsyia sudovozhdenyia. Moscow: «Transport».
Yarkyn, P. Y., Kalynychenko, E. V. (2003). Opredelenye kharakterystyk aktyvnoho tormozhenyia sudna. Alternatyvnyi podkhod. Sudovozhdenye, 6, 158–165.
Yarkyn, P. Y., Maltsev, A. S., Kalynychenko, E. V. (2004). Opredelenye kharakterystyk razghona i podtormazhyvanyia sudna. Alternatyvnyi podkhod. Visnyk ONMU, 13, 63–71.
Demyn, S. Y. (1975). Tormozhenye sudna. Moscow: Transport, 81.
👁 346 ⬇ 230
Copyright (c) 2018 Grygorii Kalinichenko, Yevgeniy Kalinichenko
This work is licensed under a Creative Commons Attribution 4.0 International License.
Our journal abides by the Creative Commons CC BY copyright rights and permissions for open access journals.
Authors, who are published in this journal, agree to the following conditions:
1. The authors reserve the right to authorship of the work and pass the first publication right of this work to the journal under the terms of a Creative Commons CC BY, which allows others to freely distribute the published research with the obligatory reference to the authors of the original work and the first publication of the work in this journal.
2. The authors have the right to conclude separate supplement agreements that relate to non-exclusive work distribution in the form in which it has been published by the journal (for example, to upload the work to the online storage of the journal or publish it as part of a monograph), provided that the reference to the first publication of the work in this journal is included.