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在车站技术设备及作业组织方法不改变的条件下,列车结构变动是影响车站通过能力的主要因素,对车站到发线通过能力影响的程度主要取决于各种列车占用到发线的时间差。当时间差较大,客货列车占线时间比较小,则增开旅客列车对货物列车的影响较小。在固定作业时间不变的条件下,无调列车比提高对技术站通过能力产生正面影响。通过分析增加旅客列车和提高无调列车比对车站通过能力的影响因子,推导出车站通过能力变化情况的计算公式。以内江车站通过能力为例计算表明,如果车站固定作业时间保持不变,无调列车比由11%提高到30%,则到发线能力较原来提高8.2%,增效显著。
The change of train structure is the main factor that affects the passing ability of the station under the condition that the technology and equipment of the station and the organization of work are not changed. The extent of the impact on the passing capacity of the station to the departure line mainly depends on the time difference of occupancy to the departure line of various trains. When the time difference is larger, the time for the passenger and freight trains to be busy is relatively small, the influence of increasing the passenger trains on the cargo trains is smaller. Under the condition of constant working time, the increase of non-transfer train ratio has a positive impact on the passing capacity of technical stations. By analyzing the factors that increase passenger trains and improving the passing capacity of train without station, the formula for calculating the passage capacity of stations is deduced. The calculation of the passing capacity of Neijiang Station shows that if the fixed operation time of the station remains unchanged and the non-transfer train ratio increases from 11% to 30%, the delivery capacity to the departure line will be 8.2% higher than that of the previous one and the efficiency will be significantly increased.