![]() ![]() ![]() Source: Huijser et al., Wildlife-vehicle collision reduction study, FHWA-HRT-08-034 Publication, 2008 Wildlife collision cost statistics for the United States. Collaboration of all these entities is needed to prioritize the locations for wildlife crossings.įigure 1. All are seeking to locate areas where certain animals need to move or migrate across the roadway. The number of wildlife collisions is being tracked, to varying degrees, by many different entities (e.g., state departments of transportation (DOTs), state natural resource agencies, federal land management agencies, etc.). taxpayers are much higher across the United States. This means that the actual amount of WVCs and their associated costs to U.S. For example, research by the Virginia Transportation Research Council recently reported that in their state, WVCs are six to eight times greater than what is reported by highway patrol records. In the last 20-30 years, the tracking of WVCs has improved greatly, but many incidents still are overlooked by official reporting techniques. Tracking Wildlife Vehicular Collisions (WVC) Figure 1 provides some details regarding WVCs in the United States and their corresponding human injuries, fatalities and property damage costs. This increase in WVCs has significant associated costs in terms of human injuries, fatalities and property damage. overall traffic collisions have been reduced slightly, while WVCs have increased by roughly 5 percent per year, doubling from 1990 to 2008. ![]() With safety being the top objective for transportation agencies across the country, implementation of wildlife crossings has become a greater priority in the United States and especially in the West. This not only affects wildlife mortality but also becomes a significant issue for motorist safety. Throughout the United States, increased traffic volumes through areas with high animal populations often leads to increases in wildlife-vehicle collisions (WVCs). Other wildlife crossings are designed for species with high conservation concern, such as salamanders, desert tortoises, flying squirrels or kit foxes. When wildlife crossing structures are designed for motorist safety, the target species typically are large ungulates such as moose, elk or deer. Structures often are built in combination with fencing to increase their effectiveness.Įach crossing is designed to serve the target species for a specific location or accommodate the majority of species in an area. Although wildlife crossing structures are not standardized designs, they can be categorized as two major types: overpasses and underpasses. The term “wildlife crossing” describes a variety of structures that are designed or retrofitted to provide safe passage for wildlife above or below a highway. Examining the Phosphorus Problem: What the Data Tells Us About Reducing Phosphorus in Stormwater.Stream Crossing Replacement: A Case Study on Rural Hydraulics.The Fundamentals of High-Rate Biofiltration.Hydrodynamic Separator Selection & Sizing Tool.Go Big - Large Scale Stormwater Management. ![]()
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