To reach a consensus beyond own position between stakeholders having diverse values and different ideas is not easy in infrastructure systems management. On the other hand, regional common resources such as agricultural water and “Satoyama” (woodland in a village) in Japan have historical backgrounds that have been used and managed based on local rules. This study aimed to clarify the legitimacy of regional water resources allocation rules and process of conflict resolution through case studies in Japan. Also, we considered the roles of rural engineering administration system from the process of making regional orders in water resources management.

 In order to maintain road bridges, strategic human resource development is required to secure engineers that are capable of behaving or making decision at certain level required for each organizations concerning for road bridge management. However, objectives of human resource development such as perspective and components of technological capabilities are rarely provided in human resource development of each organizations.

 This paper attempts to elucidate technological capabilities by classifying technical decision making, surveys and so on one by one conduced in some case of problem handling processes of road bridges (e.g. recovery from disaster) based on Bloom’s taxonomy developed to describe educational objectives in education field.

 Implemented the “Shield Construction Sludge Effective Recycling Project” in which the soil (construction sludge) generated from the mud pressure shield tunnel construction method is utilized as reclamation material. In this project, the “ETC manifest system” was developed as technology to ensure traceability. Operating this system for construction sludge recycling has led to a significant reduction in the labor required to create a manifest that is required for a series of industrial waste management processes. In addition, it was possible to issue up to 700 electronic manifests per day during that day. The system enables collection, integration, and sharing of manifest data in an immediate manner for each operator involved in discharge, transportation, and processing. Furthermore, it has been proved that this system has merits such as clarification of each company’s responsibilities, efficiency of transportation management work, and labor saving at a large discharge site.

 Bridge inspections rely heavily on manual work of site engineers and are dangerous site operations. Therefore, automation and rationalization of inspection work are strongly required.

 For this reason, robotization is considered to be effective in terms of safety and quality improvement. In particular, many methods using drones have been tried, but in this study, the wire support method that can obtain stable data with wide application range is selected.

 Then, analyze the characteristics of the target bridge and determine the specifications, and we realized installation, entry into narrow areas, wide application range, etc., which are issues with conventional methods and we proved its practicality in a real bridge demonstration experiment.

 Recently, various kinds of sensors, such as GPS, acceleration sensor and so on, can be installed on the common electric devices like a smartphone. These progress of the electric device enables to accumulate both of highly precise and large volume data with low costs. We focus on the acceleration data measured by smartphone, and propose a simple diagnosis method of road surface roughness, which considers both of an index on road profile and the standard deviation of acceleration data into up-down direction, is developed using SVM (Support Vector Machine) technique. In this paper, the outline of the diagnosis method is explained, and its availability is discussed.

 The correlation between the deterioration of RC slabs of bridges and the pothole formation above the slabs is empirically known. While it takes enormous labor and expenses to inspect RC slabs visually, the situation of pothole formation can be checked through daily road patrol. In this study, the authors develop a Poisson hidden Markov deterioration hazard model explicitly considering the correlation between the deterioration of RC slabs and pothole formation, and propose an inspection scheme expecting the streamlining of visual inspection and the shift to state-dependent inspection measures. In detail, the authors develop an inspection method for securing safety when the interval between visual inspections of RC slabs is extended, by using the frequency of pothole formation, which can be grasped through daily road patrol, as complementary information. Lastly, the appropriateness of the proposed model is empirically checked by applying it to the actual RC slabs of road bridges.

 To develop countermeasures for sediment disasters such as slope collapse, it is necessary to perform comprehensive analyses of their practicality, environmental effects, and costs to determine an optimal trade-off of these factors and ensure accountability. In this study, we quantitatively evaluated trade-offs among these factors using a questionnaire survey and analytic hierarchy process methods to model the decision-making procedures of engineers and other contributors in designing sediment disaster counter-measures. We also propose a case study for this evaluation method.