This was the title of a presentation I gave today at the 46th Society of Cartographers Summer School (Lanyrd), which was in Manchester.
The abstract was:
OpenStreetMap is coming of age, but as it starts to be used more in the mainstream, the age-old questions of quality and completeness are coming to the fore. A range of data sources have been used to build up the map in the UK, from GPS traces to aerial imagery, historic mapping, NaPTAN and the OS Open Data release, each with their own benefits and limitations. This talk looks at a number of studies and tools developed to quantify, compare and address accuracy and coverage of the project in the UK, in an attempt to answer the key questions – is it complete yet and just how good is it?
The presentation makes references to two animations, which are the Milton Keynes Mapping Party traces and the US TIGER import sequence.
