Road traffic kills an estimated 100,000-335,000 hedgehogs annually in the UK alone, contributing significantly to the steep population decline of this beloved mammal.
Road mortality represents significant welfare suffering in addition to population-level impact. Hedgehogs struck by vehicles suffer traumatic injury and die distressed deaths. Even near-miss encounters cause fear and injury. Road mitigation measures including wildlife crossing structures, hedgehog-sized gaps in road barriers, and habitat management to funnel hedgehogs toward safe crossing points can dramatically reduce mortality rates. Connectivity of garden populations also depends on hedgehog-friendly fencing.