This thread about UK flood mapping on the OpenStreetMap mailing list demonstrates that OpenStreetMap is one of the best angles to approach mapping for disaster response. Even here in the UK, there’s surprisingly few resources giving a comprehensive, up to date, spatial view of the events.
BBC Berkshire published a Google MyMaps of the floods and correspondents reports. Simple tools and easy to keep up to date. Possible to launch a collaborative version, if there was a suitable center of gravity (BBC certainly has this). However pins on the map soon overwhelms the interface, and the number of annotations is limited by GMaps memory limits. Conceptual tip of the hat to Richard Fairhurst’s talk on Cartography vs. Mashups — and the BBC flood map definitely illustrates that some information belongs deeper in the base layer (like flood warning areas) and that toggled layers are crucial for filtering data in mashups.
If this sort of data is stored and visualized in the base layer, Frederik Ramm explores the implications for storing temporarily limited data. While OSM is a wiki with an archive, it doesn’t really handle change connected to specific moments in time. Roads are flooded for only so long. Here in Brighton, one of the core roads is reduced to one lane for a year while the Victorian Sewer is replaced. The changes need to be marked as impermanent. Also an issue in representing historic maps — I’m interested in producing historical literature maps of London, and that data needs proper tagging to show validity in only certain time slices.
The floods again highlight issues with closed government data. The Environment Agency has come under criticism for restricting use of flooding data after the floods last month in the North. Information about places likely to flood, houses built in flood plains, is crucial for individuals and society to prepare for and prevent disasters. This is the crucial Analysis phase so ignored in neogeography approaches.
And, pure crowd sourcing with flickr maps does bring up impressively accurate and informative results.what is secured loanday pay wide loan worldloan william ford d forgiveness federalwendy wilson school sloan countywisconsin va loans schoolloan payments work outclass world inc home loansworldwide loans personal Map