Proceedings of the Korean Institute of Navigation and Port Research Conference (한국항해항만학회:학술대회논문집)
- 2004.08a
- /
- Pages.146-154
- /
- 2004
A Study on a New Evaluation of Collision Risk and the Problems Involved
Abstract
Evaluating the risk of collision quantitatively plays a key role in developing the expert system of navigation and collision avoidance. This study suggested and developed a new approach to the evaluation by using the sech function as an alternative to the existing methods of appraising the collision risk. This study also investigated and built up theoretically how to determine the gradient coefficients in this approach and suggested the appropriate values as much as applicable. Finally this study analyzed thoroughly how to determine the threshold function of avoiding time and developed the appropriate equation.
Keywords
- collision risk;
- CPA;
- TCPA;
- closest distance;
- approach time;
- gradient coefficient;
- threshold of avoidance time;
- minimum approach range