Ranking of precast concrete railway bridges with water management criteria by TOPSIS method

Water management in rail transport as one of the important and effective parameters plays a major role in increasing the life span of rail structures and subsequently in the economic, industrial and social fields of countries. In this research, it has been tried according to similar experiences from past studies in this field and gathering the opinions of experts in the country, extensive field studies, the use of inspection checklists, statistical information and with the correct understanding of the failures related to water management in concrete bridges and Finally, with the TOPSIS method, according to water engineering standards in bridge maintenance and repairs, it is possible to rank the prefabricated concrete bridges of the General Directorate of Northern Railways of Iran based on water management standards. The results of this research will help employers and managers in charge to be able to properly manage bridges in water engineering, considering the available capital and limited resources.