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法国国营铁路采用了一套铺画列车运行图的电子计算机系统,并已在巴黎地铁进行试验。电子计算机储存了站间距离、信号机之间的距离、线路坡度、列车最高速度、列车加速度、列车重量以及列车在车站发车时间等详细资料。如果要加铺一列列车(如图中的135次列车),时则有关列车的停站、通过或出发时间都得输入计算机。计算机打印出加铺列车与其它列车的敌对进路情况,如图中的135次列车必须在 B 站和 D 站之间减速运行(图中每标出一个正方形的信号标志表明出现一次运行妨碍),否则将与35次列车发生运行妨碍。
The French state-run railway employs a set of computerized computer systems for drawing trains and has been tested in the Paris Metro. The computer stores detailed information such as the distance between stations, the distance between signals, the line slope, the maximum speed of the train, the acceleration of the train, the weight of the train and the departure time of the train at the station. If you want to add a train (such as the figure 135 train), when the train stop, pass or departure time have to enter the computer. The computer prints out hostile approaches to overcrowded trains and other trains. As shown in Figure 135, trains must be decelerated between stations B and D. (Each square marked with a signal sign indicates an operational obstacle) , Otherwise it will be 35 times the train operation obstruction.