In order to ensure the safety of highway driving,this paper first analyzes the principles of highway route design,and then analyzes the key points of highway route selection by taking the ridge crossing line and the riverside line as examples.Finally,the key points for selecting and combining horizontal and vertical indicators of the route are analyzed from the aspects of straight line length,horizontal curve radius and corner,clothoid length and longitudinal slope gradient.The research results can be used as reference for highway route design.
highway route designroute indicatorhorizontal and vertical combination
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