| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
This study analyzed the factors in the maintenance cost of forest road network. In order to enable analysis in a wide area, we developed a method to automatically extract forest roads and a method to extract terrain with high risk of collapse from DTM. We analyzed the influence given to the passage possibility by the blocking of the road and investigated the effect of reinforcement and new establishment. In order to analyze the relationship between the maintenance cost of the operation road and the construction method, compaction test plots were set up and comparisons were made before and after the harvesting operation to calculate the maintenance cost. We examined maintenance intervals of crossed drainage. Regarding the estimation of maintenance costs, we analyzed the relationship between the restoration cost of the forest road and the surrounding topography. As a result, there was a positive correlation with the topography suggesting that it is affected by the surrounding topography.
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