Dynamic Segmentation In Highway Maintenance Information System Research

To Liaoning province better management of highway maintenance information, but also with the department of transportation of the "modern information technology to promote traffic modernization", Liaoning provincial highway maintenance Information system will be the digital management of maintenance data. With the establishment of the corresponding information system on GIS platform, abandoning the traditional data models, the space location and property management more efficient and convenient. Combined with the elements and attributes of the "double-way" query, special maintenance data statistics, make up for the deficiencies of traditional management system, improve the technical level of maintenance management.This paper mainly done the following work:1. On the demand analysis of maintenance information system of highway in Liaoning province, using C# development environment based on ArcEngine, using Geodatabase data model, realize seamless docking of space data and attribute data. At the same time, make full use of the GIS platform, spatial analysis and show the advantages and professional model in various aspects, integrated into the system, ensure themaintenance management information system.2. The highway maintenance content, classification, operation, maintenance, and calculation formula of the evaluation model andhow to make maintenance decision evaluation model.3.Through the linear reference system and the dynamic segmentation technology, change the "node-arc" the original application model in linear elements, the use of linear reference model, the 2 dimensional coordinates into 1 for the relative coordinate, reduce the data redundancy at the same time,improve the efficiency of the system.Dynamic segmentation technology based on the highway network, into the highway route set, discrete event table andspatial data and attribute, the relevance of path through the code,the realization of the unity of the multi-source data display,management.4. To the path generation can realize the system in the event by event table into the layer, thereby to display. but also can be the highway path identification and search operation.The system also realizes other multiple functions, such as database management; implementation of the highway route network and highway entrance query management; implementation of the query and management of facilities along the highway; realization of the management of maintenance data, and some operating functions.