(1)最大纵坡最大纵坡是根据道路等级、自然条件、行车要求等因素所限定的

(1)最大纵坡
最大纵坡是根据道路等级、自然条件、行车要求等因素所限定的路线纵坡最大值，它是道路纵断面设计的重要控制指标。本设计最大纵坡一般值为1.528%，极限值为6%。
(2)最小纵坡
在长路堑、低填以及其它横向排水不通畅地段，为保证排水要求，防止积水渗入路基而影响其稳定性，规范规定道路最小纵坡不应小于0.3%；当遇特殊困难纵坡小于0.3%时，应设置锯齿形边沟或采取其他排水设施。
(3)坡长限制
坡长是纵断面相邻变坡点的桩号之差，即水平距。对一定纵坡长度的限制称为坡长限制，包括最大坡长限制和最小坡长限制。规范规定设计速度为60km/h的城市道路最小坡长130m，最大坡长不限。
(4)合成坡度
合成坡度是指道路纵坡和横坡的矢量和，《城市道路工程设计规范》CJJ37-2012规定设计速度为60km/h的道路最大合成纵坡为7%，各级道路最小合成坡度不宜小于0.5%。

結果 (英文) 1:

(1) the maximum longitudinal slopeMaximum longitudinal slope based on road grade, natural conditions and traffic requirements, such as entailed by the factor of road longitudinal slope maximum, which is a key control in road vertical section design. This design value of maximum longitudinal slope for 1.528%, limit values for 6%.(2) the minimum longitudinal slopeFill in the long cutting and low lateral drainage and other open lots, in order to ensure the drainage requirements to prevent the infiltration of water from affecting the stability of the embankment, specification stipulated minimum longitudinal slope shall not be less than 0.3% when exceptional difficulties longitudinal gradient is less than 0.3% should create zigzag ditches or other drainage facilities.(3) the slope length limitSlope is vertical adjacent pile with variable slope point, the difference between the horizontal distance. Some longitudinal length restriction is known as the slope length limit, including the maximum slope length and the minimum length limit. Specification design speed for minimum slope of urban road 60km/h 130m, maximum length is not limited.(4) synthesis of slopeSynthetic gradient is the vector of road longitudinal slope and cross slope and CJJ37-2012 provisions of the code for design of urban road engineering design speed for 60km/h synthesis of maximum longitudinal slope of 7% at all levels minimum synthetic slope of not less than 0.5% road.

結果 (英文) 2:

(1) Maximum Longitudinal
Maximum Longitudinal Longitudinal maximum is based on road grade, natural conditions, and other factors driving the requirements defined in the route, it is important to control targets the road profile design. The design value of 1.528% Maximum Longitudinal Usually, the limit is 6%.
(2) Minimum Longitudinal
long cuttings, as well as other low-filling is not smooth lateral drainage area, to ensure drainage requirements, to prevent the infiltration of water and affect its stability roadbed, road specification Longitudinal minimum of not less than 0.3%; when the case Longitudinal special difficulties when less than 0.3%, should be set zigzag ditches or other drainage facilities.
(3) Limited Slope Length
of slope length profile is the difference between adjacent PVI station, namely horizontal distance. Certain restrictions on the length of the longitudinal slope called slope length restrictions, including limiting the maximum slope length and most small slope length limit. Specification design speed of 60km / h urban roads most small slope length 130m, the maximum slope length is not limited.
(4) Synthesis slope
synthesis is a road slope Longitudinal and transverse slope vector and "urban road engineering design specification" CJJ37-2012 provisions of the design speed of 60km / h maximum road longitudinal slope synthesis of 7%, the minimum levels of road synthesis slope should not be less than 0.5%.