Expressway traffic lane pavement condition evaluation method

Abstract

The invention provides an expressway traffic lane pavement condition evaluation method, which comprises the following steps of performing standardization on acquired data, eliminating adverse effects of various indexes on an analysis result due to different units, and obtaining a standardized matrix; processing the standardized matrix, eliminating the correlation influence between the original data, and obtaining a correlation coefficient matrix; according to the correlation coefficient matrix, obtaining characteristic values and contribution rates capable of representing all components of the original data; extracting components capable of representing most information of the original data as main components, and solving characteristic vectors corresponding to characteristic values of the main components according to a feature equation; and representing comprehensive evaluation indexes by using principal components and weights, and establishing comprehensive index evaluation grades in combination with corresponding road index grade division standards. The problem that the evaluation result is inaccurate due to the fact that lanes are not distinguished in the current expressway pavement evaluation process is solved, and expressway pavement evaluation is more refined.

Description

technical field [0001] The invention relates to a method for evaluating the road surface condition of an expressway. Background technique [0002] At present, my country's infrastructure construction has gradually tended to be perfect, and the mileage of expressways put into use in China is also very large. In the expressway, our country mostly adopts the design of two-way four-lane. With the increase of the service life, the road surface damage of the expressway is becoming more and more serious, and the amount of maintenance works is also increasing. Domestic expressway maintenance and preventive measures are mostly based on the evaluation results of the entire road section. [0003] The vehicle loads of different lanes of the expressway are quite different, and the main damage types are also different. Carrying out maintenance according to the traditional evaluation results may cause inaccurate maintenance and waste of resources. In the pavement maintenance evaluation ...

AI Technical Summary

Problems solved by technology

[0003] The vehicle loads of different lanes of the expressway are quite different, and the main damage types are also different. Carrying out maintenance according to the traditional evaluation results may cause inaccurate maintenance and waste of resources

In the pavement maintenance evaluation system, destructive diseases such as cracks, potholes, and ruts are mainly reflected in the pavement condition index PCI. PCI is a comprehensive evaluation index that cannot reflect the type and severity of typical pavement diseases and is sensitive in the evaluation process. Insufficient performance, the evaluation results are out of touch with the actual maintenance needs

However, the disease of the driving lane is obviously more serious than that of the overtaking lane and the emergency lane, and the traditional highway pavement evaluation method may weaken the indicators with differences

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