缓和段 meaning in Chinese

transition zone

Through specification and project fact , this paper puts forward 3 terms of superelevation easement curves for establishing in high grade highway mute design , and then deduce a critical formula , in order to treated separately to establish superelevation easement curves
摘要通过结合规范和工程实际，提出对高等级公路路线设计中超高缓和段设置的三个条件，并推导出临界判断公式，以便在超高缓和段设置时区别对待。