海峡および水道の船舶交通現象に関する研究 : 制限水路の船舶航行容量について観測による航行容量の推定

概要

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The estimation of the marine traffic capacity requires the determination by the observation for the effective domain, which was carried out by "Looking Down Method" on the Choshi Harbour. Using the statistical manipulation of the obtained data, effects of ship group size, ship speed and waterway width on the effective domain are clarified. The multiple regression formulas for these effects are given as follows : for the group made up of two ships R_0=11.80+12.33V+0.1107W+0.804L, and for the group made up of three or more R_0=-4.82+6.88V+0.1957W+1.742L, where R_0 is the length of the effective domain in metres, V the ship speed in metres per second, W the waterway width in metres and L the ship length in metres, and the mean values of L are 18.06 and 17.97 metres respectively. Furthermore, the traffic capacity in the high speed range of ship is represented by the following formulas : C=ηWV_0/L^2, η=0.22±0.05, where C is the traffic capacity in ships per second, V_0 the normal speed of ship in metres per second.
独立行政法人海上技術安全研究所の論文
1973-09-20