2011•Journal of Hebei University of TechnologyRequires access
Key questions of highway alignment quality design based on operating speed
Hongzhi Yang
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Abstract
To solve the problem of the insufficiency in tradition design of alignment of highway,the method of highway alignment design based on operating speed were researched,quality valuation standard of highway alignment design for secondary highway were put forward.Based on field observations of traffic features and survey of operating speed,set up the prediction models of operating speed,got the threshold value of plane essential factor influence operating speed,the model were also verified and validated,results show that the model met the requirements of accuracy and precision,the model prediction and the actual observed values fit well,it will do more help on application of operating speed in the field of design of the alignment of highway.