Development on preventive maintenance management system for expressway asphalt pavements

In view of the status that there was no expressway pavement preventive maintenance management system at home and abroad at present, based on the technology theory obtained by the author and the demands and process of expressway asphalt pavement preventive maintenance management, preventive maintenance management system for expressway asphalt pavement (EPMMS (V1.0)) was developed. The work or functions of expressway maintenance quality evaluating, pavement performance predicting, optimum selecting of preventive maintenance treatment, the optimal timing determining, and post-evaluating could be realized or auxiliary realized, The theoretical foundation, development environment and the whole framework were expounded in the paper, the development and realization process of the five sub-systems was introduced in detail, the system testing and application were briefly introduced. The test results showed that this system could meet the demands of software products register test code. Primary application showed the system was correct and efficient, software support would be provided for expressway pavement preventive maintenance management, the pavement preventive maintenance management would be more standardized and convenient, and also the demands of the expressway maintenance management department could be greatly met by this system.