A road authority with statutory power to erect signs and set speed limits may breach its duty of care by failing to make local inquiries to identify areas of heightened risk from straying animals and failing to erect warning signs and reduce speed limits in those areas. A trial judge's preference for statistical evidence over extensive and consistent local knowledge evidence may be overturned on appeal where the local evidence overwhelmingly establishes a heightened danger in a particular area. A driver's excessive speed and awareness of general danger does not necessarily negate causation where the driver was an experienced and responsible driver who would have heeded specific warning signs.
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