Determining the priority criteria and ranking of provincial bridge maintenance in West Sumatra using a combination of the Fuzzy Analytical Hierarchy Process and VIKOR-Modification methods

Abstract

There are many bridges that need to be maintained in a provincial road network, with limited funds for bridge maintenance, many bridge criteria (average daily traffic, economic benefits, fund budget, technical conditions, bridge hierarchy, spatial planning, flood potential, type of damage, erosion potential, age and surface concrete, etc.), and various levels of conditions, are a number of criteria that are taken into account in the decision making by the government as an institution responsible for the functioning of roads and bridges. The selection of bridge maintenance priorities in West Sumatra Province was decided through a coordination meeting between agencies, and sometimes relatively without going through sufficient technical analysis. This research initiated, the selected criteria to be taken into consideration, the order of the important criteria in the selected network segment. This study involved a number of road and bridge maintenance experts at the Ministry of Public Works, Road and Bridge Research and Development Institutions, as well as the Department of Public Works and Spatial Planning of West Sumatra Province. A combination of Fuzzy Analytic Hierarchy Process (to determine weighted criteria) and VIKOR-Modification methods (to determine the order of choice of bridges to be handled) are selected. There are eight criteria that can be used in determining the priority of bridge maintenance, and the priority sequence of the most important are: bridge technical conditions, aging of the bridge, average daily traffic, economic benefits, road function, budget, disaster risk (Flood, Landslides, Tsunamis) and Spatial Plans.