于4月18日起实施的全国铁路第六次大提速可使我国铁路网的客运能力提高18%,相当于每天增加30万个座席,货运能力提高12%。提速具有明显的经济效益和社会效益。按照国际惯例,对于客货混运的旧线改造线路而言,时速达到200km及以上时,已属于高速铁路范畴。通过铁路第六次大提速,京 The sixth major speed-up of the national railway since April 18 will increase the passenger capacity of China’s railway network by 18%, equivalent to an increase of 300,000 seats per day and a 12% increase in cargo capacity. Speed ​​has obvious economic and social benefits. In accordance with international practice, for the reconstruction of the old lines for the mixed operation of passenger and freight transport, when the speed reaches 200 km and above, it belongs to the category of high-speed railway. Sixth speed through the railway, Beijing