根据货运量影响因素的分析，分别取国内生产总值，工业生产总值，铁路运输线路长度，复线里程比重，公路运输线路长度，等级公路比重，铁路货车数量和民用载货汽车数量8项指标因素作为网络输入。-According to analyzing the influential factors of freight volume, respectively take the gross domestic product, industrial production, the line length of railway transportation, the proportion of double track mileage, road transport line length, grade highway, railway wagon number and civilian truck number 8 indicators factors as input.