longitudinal grade

基本解释

The results of the analysis show that the highway longitudinal grade had little influence on pavement performance.
分析結果表明，公路縱坡對路麪結搆受力的影響不明顯。
The existing highway design criterion only takes setting pavement longitudinal grade, side ditch and drainage ditch into account in order to eliminate surface water.
現有的公路設計中，考慮較多的僅僅是通過設置道路的縱坡、邊溝及排水溝等設施來排除地表水。
By analyzing the relationship between speed loss, speed discount in different gradient and grade length, the paper also brings forward the maximum longitudinal gradient and grade length limit.
通過速度折減量與坡長之間的關系曲線，提出基於運行速度差和滿足公路服務水平要求的各級公路最大縱坡坡度與坡長限制值。