“…The method is demonstrated using a case study from Yorkshire, and the main practical and theoretical challenges associated with the method are discussed. significant theoretical and practical challenges underlie the estimation of both components of risk (Evans et al, 2002(Evans et al, , 2006Wheater, 2002Wheater, , 2006Hall et al, 2003;Gouldby et al, 2008;Falconer et al, 2009;Merz et al, 2010). The most relevant general challenges are reviewed briefly here as a background to the proposed framework.…”