train density

Train running chart constantly make adjusting, and its speed, grade continuously improve, density increases gradually, and technical operation time of train generally reduce.

列车运行图不断调整，列车运行速度、等级不断提高，列车密度逐渐加大，列车技术作业的时间普遍压缩。

In order to satisfy the high efficiency and high density request of urban railway traffic system, automatic train operation ( ATO) can replace the experienced driver to complete the driving task.

高效率和高密度的城市轨道交通对列控系统提出了更高的要求，列车自动驾驶系统（ATO）能够代替经验丰富的司机完成自动驾驶列车的任务。

Establishing the dynamic performance simulation of high-speed train track random irregularity excitation model by taking the PSD ( Power Spectral Density), the change law of wheel/ rail vertical and horizontal force with curve radius value in less super high and super high state is obtained.

将德国高干扰谱用于高速动车动态性能仿真建立的轨道随机不平顺激扰模型，分析了欠超高和过超高状态下轮轨垂向力和横向力随曲线半径值变化规律。

According to need, raise density of trains, open a midway to fold return train.

根据需要, 提高列车密度, 并开行中途折返列车.

Results On the passenger train, after application for 1~ 15 days, the RPI was 0~ 8 16 and the reduction rate of density was 91 9%~ 100%.

结果旅客列车施药后1～15d，蟑螂相关密度值（RPI）为0～8.16，密度下降率为91.9%～100%；

The individual character difference of railroad carriage process is reflected through train weight, speed, density.

铁路运输过程的个性差异是通过列车重量 、 速度 、 密度体现的.

The noise characteristic of the train wheel set vibration signal is researched through spectral correlation density function based on the auto-correlation function analysis of additive noise.

以列车运行过程中最常见的加性噪声为例，分析了循环自相关函数的降噪效果。继而研究了谱相关密度函数对列车轮对振动信号中常见噪声分量的降噪特性。