Forecast for Terms of Culvert Inspection and Repair

Culverts which were built in different years, by different organizations and of different types of materials are one of the most important elements of railways and highways. The culverts work jointly with the foundation and roadbed grounds, thus degeneration processes in pipes and culverts has a direct influence on the safety and reliability of the transport object they belong to.Consequently, importance of the technical condition estimation and forecast increases. The repair of the underground objects requires significant financial expenses that can be avoided by proper forecast for terms of culver repair.The method of the forecast for terms of railway and highway culverts inspection and repair based on fuzzy logic is presented in this paper. The degradation rate that depends on the culvert age and technical condition is obtained as a result.The considered approach allows planning the terms of culverts inspection and repairing reasonably, that significantly increases the safety of the transportation objects and decreases the maintenance expenses.