Asphalt pavement comprehensive performance weight determination method based on modified analytic hierarchy process

Abstract

The invention provides an asphalt pavement comprehensive performance weight determination method based on a modified analytic hierarchy process, which comprises the following steps: selecting an asphalt pavement needing comprehensive performance evaluation, and determining four index values (PCI, RQI, SFC and SSI) of asphalt pavement performance of the asphalt pavement needing evaluation according to the existing highway asphalt pavement maintenance specifications; processing the four indexes of the asphalt pavement performance by using a modified analytic hierarchy process, constructing an asphalt pavement comprehensive performance index weight determination model, and establishing a judgment matrix of the model; and carrying out consistency check on the judgment matrix to verify whether the judgment matrix meets consistency or not. According to the invention, the weight values of the four performance indexes of the asphalt pavement are determined by adopting the modified analytic hierarchy process, so that the comprehensive performance of the asphalt pavement is evaluated, a new method is provided for determining the index weights of the asphalt pavement, and the method has important significance on accurate and reasonable evaluation of the comprehensive performance of the asphalt pavement.

Description

technical field [0001] The invention relates to a method for determining the weight of comprehensive performance of asphalt pavement based on modified analytic hierarchy process. Background technique [0002] With the increase of traffic volume and the increase of vehicle load, the degradation of pavement performance caused by load and other environmental factors becomes more and more serious. In order to better repair and maintain the old road, it is necessary to evaluate the comprehensive performance of the pavement. The pavement comprehensive performance evaluation index PQI is obtained by weighting four sub-indices: pavement damage index PCI, driving quality index RQI, pavement skid resistance index SFC, and pavement strength index SSI. In my country's norms, the weights of the four sub-items are fixed, but in fact, due to the significant differences in the performance of the evaluated roads, it is difficult to use fixed weights to apply to all road surfaces for compreh...

AI Technical Summary

Problems solved by technology

In my country's norms, the weights of the four sub-items are fixed, but in fact, due to the significant differences in the performance of the evaluated roads, it is difficult to use fixed weights to apply to all road surfaces for comprehensive performance evaluation. reflect the real pavement performance status of the pavement being evaluated

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