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为从小样本数据集中获得简单、容易理解的回归函数,并找出影响路面弯沉的因素及其规律,利用基于多项式空间的特征选择方法对路面使用性能衰变进行研究.结果表明:交通流量和降雨量共同影响路面弯沉值,交通流量越大,路面弯沉增加越快,降雨量对路面弯沉的影响较明显;前一年的路面弯沉值对其自身也有影响,可用来反映路段当前的服务状态.
In order to obtain a simple and easy-to-understand regression function from a small sample dataset and to find out the factors that affect the deflection of the pavement and its regularity, the paper studies the decay of pavement performance using the feature selection method based on polynomial space.The results show that traffic flow and rainfall The amount of traffic on the road surface deflection, the impact of the amount of rainfall on the road surface deflection more obvious; the previous year’s road surface deflection values also have their own impact, can be used to reflect the current section of the road Service status.