VGI in Haiti

Muki Haklay has an interesting post about the state of play regarding VGI (volunteered geographic information) in Haiti and possible conflicts between OpenStreetMap and Google.

Here is a comparison map of coverage, where “yellow means that there is a better coverage in Map Maker, and blue means that there is a better coverage in OpenStreetMap. The difference between the two datasets is expressed in metres.”

Muki says:

there are differences between the two sources of data, and these may matter as the relief work is carried out. The evaluation question is:  for each grid square, which of the datasets contains more information in terms of roads length?

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