PERFORMANCE TEST OF ANIMAL SECURITY FENCE AGAINST IMPACT OF WILD BOARS AND PROPOSAL FOR IMPROVED TYPE FENCE

Abstract

 Security fences for wild animals are installed to prevent the deaths of wild animals on the highways by vehicles, but damage to such security fences is caused by the impact from medium to large animals considered to be wild boars. Accordingly, we conducted tests to analyze the relationship between speed, position, and deformation of the fence after an impact by a wild boar. The test results indicate that wild boars hit the fence in a position with the nose thrust upward; consequently, location of the horizontal wire near the point of impact is critical in reducing deformation of the fence. Based on these results, we propose an improved fence with consideration for the location of the horizontal wire.