Abstract
This paper deals with route, or path, planning for a very long distance swimming in the sea by applying project management method and optimal guidance scheme. The objective of the long distance swimming is to maximize the number of successful swimmers while reducing the risk that may be encountered during the trial. We use an example of long distance swimming carried out by swimming club of Keio University. First we have picked up the factors for increasing the successful swimming rate with emphasis on the safety. Then, we apply a modified dynamic programming approach to get a feasible solution for the complex problem affected by many dependent factors. After considering how to reduce the risk while finding a decision or method to solute the problems, we have obtained a solution to this long distance swimming across the sea. Furthermore, this result turns out to be useful to improve the successful rate and to identify important factors arising from natural phenomenon, such as tidal stream which affects the successful rate.
