根据古巴铁路的现代化规划,到2000年大约将有3500km准轨铁路得到改造,重点是哈瓦那—圣地亚哥的860.8km单线铁路。迄今为止,该线最高允许速度为85km/h,慢行地段多达70处,平均速度为60km/h。今后将铺设苏制43和50kg钢轨,轨排长12.5m,用起吊力为16～25t的铁路起重机施工。改造后的这条东西大动脉上,旅客列车速度可提高到140km/h,货物列车速度可达100km/h,其路基是按今后车速为200km/h而设计的。另外,该线要部 According to the modernization plan of the Cuban railway, approximately 3500 km of the main-gauge railway will be rebuilt by the year 2000, with a focus on the 860.8 km single-line railway in Havana-Santiago. Up to now, the maximum allowable speed of this line is 85km / h, with as many as 70 slow-moving sections at an average speed of 60km / h. The future will be laying Soviet-made 43 and 50kg rails, rail length 12.5m, with a lifting force of 16 ~ 25t railway crane construction. After the transformation of this aorta, the passenger train speed can be increased to 140km / h, the freight train speed up to 100km / h, the roadbed is designed for the future speed of 200km / h. In addition, the line department