Supply sorting and resource routing are central practices in emergent disaster response because disasters produce influxes of goods that are valuable only if they can be received, interpreted, prioritized, and moved where they are actually needed [@wachtendorf2010; @nelan2016].
Sorting
Sorting is the practical classification of incoming goods by type, quality, urgency, and likely use. Wachtendorf and coauthors show that Katrina generated severe challenges in acquisition, reception, storage, transport, and distribution because material convergence was so large and so uneven [@wachtendorf2010]. Sorting is what turns a pile of donations into a usable flow.
Routing
Routing is the movement of supplies toward particular hubs, neighborhoods, households, or projects in response to changing information about need. Occupy Sandy’s social-media-supported hubs gave this practice a fast and visible form, allowing supplies and volunteers to be redirected in near real time [@ambinder2013].
Alignment and agility
Mary Nelan’s study of donations after Sandy and other disasters argues that successful relief supply chains depend on agility, adaptability, and alignment [@nelan2016]. This is useful for emergent disaster response because it shows that routing is not only about speed. It is also about keeping donated goods aligned with survivor priorities rather than with donor sentiment or bureaucratic convenience.
Significance
Sorting and routing matter because they stand at the boundary between helpful aid and pathological aid. Russell Dynes argues that disaster assistance often brings too much help, the wrong kind of help, or help delivered inefficiently [@dynes1994]. The operational answer is not to reject convergence, but to build practices that transform incoming goods into useful, equitable, and situationally appropriate support.