交通機関別の速力逓減に関する基礎的研究

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In recent decades the pace of our life style has become faster, so, the short-time transportation is becoming inevitable. Then we focused on the slow down process of traffics. In this paper, firstly, we carried out some experiments about the slow down patterns of 3 different traffics (ship, car and train) and obtained these slow down curves. Then we compare the amount of the loss of time in the slow down process with these traffics by introducing the "DELAY FUNCTION" which is an inverse of the "velocity function" as follows : S'=∫Ddx =∫(dt/dx)dx =T where dt/dx is the DELAY FUNCTION D, x is a distance, and T is an elapsed time. Then the area under the curve, S, means the amount of time, T. Thus, we know the loss of time in the slow down process. Finally, we obtained the results as follows : (1) In the slow down curves of velocity they look same near 0.1 of d/d_0, but in the DELAY curves there are noticeable differences in this area. (2) The amount of time in the slow down process can be obtained by integrating the DELAY FUNCTION. (3) To evaluate the slow down process, it is very important to reveal the area where d/d_0 is near 0 to 0.1. (4) T also depends on the distance of the slow down process and the working speed of each traffic. (5) T of the ship is the largest of all cases. (6) The slow down curves must be raised upwards near the origin. (7) In the slow down curves, all of them show typical patterns with bench type portion near 0.5 of d/d_0.
社団法人日本航海学会の論文
1993-03-25

交通機関別の速力逓減に関する基礎的研究

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