• Journal of the Korean Society of Marine Environment & Safety
• /
• v.12 no.2 s.25
• /
• pp.133-137
• /
• 2006

In adjacent sea areas of Yeosu, there are many crossing traffics between eastbound and westbound vessels. Traffic congestion is increasing in sea area of east Sori island and near Yokji Island. In this research, we established TSS near Yeokmando Areas and new recommended route which connected to Seopdo west recommended route to reduce meeting traffic between eastbound vessels and westbound vessels.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2014.10a
• /
• pp.103-105
• /
• 2014

선박의 운항분포는 교량충돌확률이나 선박충돌위험도 등을 계산할 때 매우 중요한 요인으로 작용하지만, AASHTO모델이나 해상교통안전진단에서의 근접도 평가모델 등 많은 충돌 또는 위험도 계산 모델에서는 선박의 운항분포가 단순한 정규분포임을 가정하고 있다. 따라서 특정 항로나 해역에서의 정확한 충돌, 위험 또는 안전 등에 관한 확률을 구하고자 할 경우에는 그 항로나 해역의 특성에 맞는 선박 운항분포를 사용해야 한다. 이 연구에서는 일주일간의 통항선박 위치정보(AIS정보)를 이용하여 다양한 특성을 가지는 항로별로 각각 고유한 특성의 선박 운항분포를 찾아내기 위해, sech 함수를 이용한 새로운 충돌위험도 평가법에서 피항구역의 문턱값을 결정하는 방법을 분석하고 실제 상황에 적용 가능한 식을 개발하였다.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.12 no.3 s.26
• /
• pp.211-218
• /
• 2006

Recently, many ships such as fishing boats, cargo ships, high speed ferry boats are visiting Mokpo harbor. In particular, many marine accidents have been occurred at this area due to the narrow channel, a thick fog, the existing of the shallow waters etc. However there is no suitable ships' routeing system which takes account of today's traffic situations in this area. This study aims at the settling of hazardous factors to mitigate the danger to vessels in Mokpo harbor and to secure the safety of maritime environment.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2015.07a
• /
• pp.366-368
• /
• 2015

광양항은 4개의 항로가 설정되어 있다. 광양항 제1항로는 광양항 항계에서 "해사안전법" 제10조에 따른 교통안전특정해역(여수구역)과 연결되어 있고, 낙포각 사포부두(원유부두 북측) 전면 해상에서 광양항 제2항로와 광양항 제3항로 및 제4항로가 분기 합류된다. 이 글은 광양항 제1항로에서 제2항로로 진입하고 있던 선박과 광양항 제3항로에서 제1항로로 진입하고 있던 선박 사이에 발생한 충돌사건의 개요와 원인을 살펴보고, 개항내 항로가 분기 합류되는 수역에서 합의항법이 적용될 수 있는 점과 현행 광양항 항로의 재배치 필요성, 여수지방해양항만청 고시로 규정하고 있는 광양항내 안전한 속력을 광양항에 입출항하는 모든 선장 및 항해사가 알 수 있도록 해도 및 "Guide to Port Entry"에 반영할 것, 그리고 VTS관제사가 광양항에 입출항하는 선박이 안전한 속력을 준수하도록 권고 또는 지시 필요성 등의 교훈 및 개선사항을 제시하고 있다.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.23 no.5
• /
• pp.439-446
• /
• 2017

The Maritime Safety Act established restrictions for the passage of oil tankers, prohibiting vessesl carrying more than 1,500 kiloliters of oil or 1,500 tons of a hazardous liquid substance. Prohibited vessels that do not satisfy the restrictions are allowed to enter and depart from a nearby port from the outer sea area to minimize the time and distance the oil tanker must navigate in the prohibited area. Therefore, such regulation should not be construed as referring to inshore traffic. In this study, the traffic volume of coastal tankers that do not use the approaching channels for specific sea areas near Yeosu and Gwangyang Port was analyzed, and the cargo loads of these ships were investigated. The results of this study should be used to allow tankers to minimize the time and distance of navigation in prohibited areas. According to the survey, 16 vessels, 51.6 % of the 31 vessels using inshore traffic included in the study, were loaded with more than 1,500 tons of cargo. This is not appropriate according to the legislation for oil tanker passage. Therefore, in this study, sea routes have been proposed that connect with the approaching channels of specific sea areas, from the outer sea areas of restricted passages. Regulations have also been proposed for the entry and departure of oil tankers around Yeosu and Gwangyang Port.

• Proceedings of KOSOMES biannual meeting
• /
• 2006.05a
• /
• pp.53-58
• /
• 2006

Recently, vessel's average speed in the sea becomes fast because of the increasing of high-speeds vessel like a container ship and ferry. So, it is considered that speed control in the korean narrow waterway isn't the proper vessel traffic management, now. And, there is a rare paper studied about speed control quantitatively and numerically, especially speed control is discussing continuously, as abrogation of Incheon Port's speed control and alleviation of Kwangyang Port's speed control a according to navigating mariner's request. After this paper replayed the navigation traffic flow in the straight waterway using marine traffic flow simulation, the Environmental Stress Model is introduced to evaluate difficulty of each vessel's traffic.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.12 no.2 s.25
• /
• pp.139-144
• /
• 2006

Recently, ships' average navigation speed become faster than before because of the increasing of high-speeds vessel including container ships and passenger-ferries. So, it is considered that the speed limit in the navigation channel in Korea isn't proper for vessel management in these days. Also, there is rare paper studies about the speed limit quantitatively and numerically, especially the speed limit is discussing continuously, as abrogation of Incheon Port's speed limit and alleviation of Gwang-yang Port's speed limit according to the requests by the navigating mariners. Consequently this paper deals with the effectiveness of speed limits using the Environmental Stress Model, after replay of the navigation traffic flow in the straight waterway using marine traffic flow simulation technique.

• Journal of Navigation and Port Research
• /
• v.30 no.1 s.107
• /
• pp.1-8
• /
• 2006

Recently, many ships such as VLCCs, dangerous cargo ships, high speed ferry boats are visiting Yeosu, Gwangyang harbor. The traffic volume of the year 2003 has increased as many as 2.5 times of 1988. However there is no suitable ships' routeing system which takes account of today's traffic situations in this area This study aims at the settling of hazardous factors to mitigate the danger to vessels in Yeosu${\cdot}$Gwangyang bay and to secure the safety of maritime environment.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• v.29 no.1
• /
• pp.197-204
• /
• 2005

Recently, many ships such as VLCCs, dangerous cargo ships, high speed ferry boats are visiting Yeosu ${\cdot}$ Gwangyang harbor. The traffic volume of the year 2003 has increased as many as 2.5 times of 1988. However there is no suitable ship's routeing system which takes account of today's traffic situations in this area. This study aims at the setting of hazardous factors to mitigate the danger to vessels in Yeosu ${\cdot}$ Gwangyang bay and to secure the safety of maritime environment.

• Journal of Navigation and Port Research
• /
• v.30 no.1 s.107
• /
• pp.9-15
• /
• 2006

At the adjacent sea area of Busan Central Wharf, a variety of vessels, such as middle-large passenger ships, small hugh speed crafts, container ships, cargo ships and working boats as well as small miscellaneous vessels are freely sailing comparatively without special rules and marine traffic control. In this research, we analyzed traffic stream and navigational characteristics cf main traffic route based on statistics and distribution of tracks by ship's type and tonnage cf the passing vessels after conducting marine traffic survey twice using exclusive software. We examined the traffic safety of the passing vessels by classifying the sea area by each function based on the analysis about this traffic situation, and analyzing the effect by designating 'Inner passage'. We also studied the plan for the effective rearrangement cf Central Wharf considering basically the traffic safety of arrival and departure in a point of view of navigators.