Visual Performance for the Lookout in Maritime Traffic System

海上交通系统中瞭望台的视觉表现

基本信息

批准号：
11650944
负责人：
FURUSHO Masao
金额：
$ 1.6万
依托单位：
Kobe University of Mercantile Marine (KUMM)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650944/
关键词：
Lookout Visual Performance Maritime Traffic System Difference Luminance Threshold Visibility Level Field Factor Marine Casualties Human Factors 航海視環境太陽高度

项目摘要

The object of this research is a visual check on the lookout in the maritime traffic system. The summary of the obtained main conclusion is summarized as follows. The visual check condition of the horizon clarified that the luminance difference between sky luminance and the sea surface luminance was greater than that of the difference luminance threshold to sky luminance from the relation between a physical characteristic of the outdoors visual environment and the difference luminance threshold. The author showed that the horizontal plane illuminance of the navigation bridge was able to standardize solar altitude as a parameter.The author projected based on the investigation of the case with 1000 collision marine casualties shown in the judgment report the collision marine casualty ratio and showed a lot of environmental conditions etc. In addition, the visual check on the lookout was evaluated, the author proposed the lookout points, and the importance to improve the visual check on the lookout was confirmed. It is that the target does not necessarily exist that the target is not seen. It means a psychological factor and a physiological factor, etc. should be considered by a proper lookout.The author proposed to introduce the concept of the visual check on the ship "Visibility level (VL)". The author proposed the lookout points in the navigation bridge as follows according to the distance.(1) 6 nautical mile beyond : "Visual check difficulty area", (2) 3-6 nautical miles : "First recognition area", (3) within three nautical miles : "Observation area"As a result, the field factor was guessed regardless of unlike the visual environment at sea shown by solar altitude even though about three at sea.The problem in the future is to catch the entire maritime traffic system by the viewpoint of disaster prevention, and to examine each element for Machine Factors and Management Factors.

本研究的目的是对海上交通系统中的了望台进行目视检查。所得主要结论总结如下。地平线的目视检查情况从室外视觉环境的物理特性与亮度差阈值之间的关系可知，天空亮度与海面亮度之间的亮度差大于亮度差阈值与天空亮度的亮度差。笔者证明，驾驶台的水平面照度能够将太阳高度角标准化为一个参数。笔者根据判决报告中1000起碰撞海难案件的调查，推算了碰撞海难比例，并给出了另外，对了望台目视检查进行了评价，提出了望点，并确认了改进瞭望台目视检查的重要性。看不见目标就是目标不一定存在。这意味着适当的了望应考虑心理因素、生理因素等。笔者提出在船舶上引入目视检查“能见度等级(VL)”的概念。笔者根据距离提出了如下驾驶室瞭望点：（1）6海里以外：“目视检查困难区域”，（2）3-6海里：“第一识别区域”，（3）三海里以内：“观测区域”因此，尽管海上大约有三海里，但与太阳高度角所显示的海上视觉环境不同，场因数被猜测。未来的问题是捕捉整个海上交通系统从防灾的角度出发，对机械因素和管理因素等各个要素进行考察。