本文提出了划分重载轨道类型及其标准的政策性建议。并对这一建议,从划分重载轨道类型,提高轨道承载能力,加速推广无缝线路,扩大无缝线路铺设范围,采用新型轨下基础,提高道碴道床技术性能等方面进行了说明。 This paper presents policy recommendations for classifying heavy track types and their standards. And this suggestion is explained from the aspects such as dividing the heavy track type, increasing the carrying capacity of the track, accelerating the extension of the seamless track, expanding the coverage of the seamless track, adopting the new track foundation and improving the technical performance of the ballast track bed .