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为了调查江苏省各种路面养护措施的费用-效益,对路面管理系统的养护历史资料、交通轴载信息、路面性能的数据进行观察和分析.与增长模型、线性模型、对数模型和指数模型相比,立方模型具有更高的回归精度,能够捕捉路面性能衰退曲线,因此采用立方模型来模拟路面车辙的发展.计算效益费用比来定量评价路面养护措施的费用-效益.研究结果表明,在中、低交通条件下,热拌沥青薄层罩面和微表处比其他养护措施的费用-效益更大;在重、特重交通高速公路上,热再生和厚热沥青罩面具有更长的使用寿命和更大的费用-效益.
In order to investigate the cost-benefit of various pavement maintenance measures in Jiangsu Province, we observed and analyzed the data of maintenance history, traffic information and pavement performance of pavement management system, and compared with growth model, linear model, logarithmic model and index model Compared with the cubic regression model, the cubic model has better regression accuracy and can capture the curve of pavement performance degradation. Therefore, the cubic model is used to simulate the development of pavement rutting.Cost-benefit ratio is used to evaluate the cost-benefit of pavement maintenance measures quantitatively.The results show that, Under medium and low traffic conditions, the costs and benefits of hot-dip asphalt overlay and micro-surfacing are greater than those of other maintenance measures. On heavy and extra-heavy traffic superhighways, thermal regeneration and thick hot asphalt overlays have longer The service life and greater cost-effectiveness.