Ship-to-ship dialogues and agreements for collision risk reduction

Abstract

Non-compliance with or misinterpretation of the International Regulations for Preventing Collisions at Sea (COLREGs) when assessing vessel encounters, and the lack of good communication between the vessels involved in a critical situation, are primary contributing factors in collisions. Vessels engaged in an encounter should be aware that they are part of the same scenario and situation, which can become critical. Sharing and contrasting their information about the encounter would help those responsible to take manoeuvring decisions in a consistent way. There are situations whose evaluation by the respective officers in charge of the navigational watch may diverge and lead to disagreements on the actions to be taken. If there is no proper inter-ship communication, a collision may result. This paper presents a proposal for safety communication implemented in a programmable system using common equipment (automatic identification system), and applies it to a case study of one such special situation, showing how it could help to reduce the risk of collision.

Risk Analysis and Visualization of Merchant and Fishing Vessels Collision In Coastal Waters

“…In terms of mitigating the risk of collision between merchant and fishing vessels, many researchers have put forward related approaches from different perspectives. These include ship-toship dialogue and protocols [11], human-machine cooperative collision avoidance systems [12], requirements for fishing vessels [13], safe navigation for merchant vessels [14], and collision avoidance methods during fishing seasons [15]. Xu Xiaoming et al [16] systematically summarized the patterns of collisions between merchant and fishing vessels, proposing preventive measures from aspects such as personnel, vessels, environment, and management.…”