OpenStreetMap
Have been continuing to trace in buildings, paths, drainage, trees from a combination of the Yahoo satellite view, local knowledge and observations from previous GPS-ing trips. I've been tagging bus stops (and on the occasions when they're missing, Post Offices and Post Boxes) and also telephone boxes (although I don't think these currently appear on any renderings, which is a shame). I've also tried to put in some farm / field boundaries I knew about where possible.
Despite Cambridge's amazingly detailed state (thanks to others - particularly David Earl) there's still plenty of useful information I can contribute, even on the fully streetmapped sections. So anybody who's looking for some mapping but thinks there's nothing to do in their local area - look again. There's *always* something you can add, either using local knowledge, GPS, NPE or Yahoo!
Discussion
Comment from davidearl on 26 August 2008 at 21:09
Indeed. As well as the kind of detail that Mark is doing, there are two huge projects for Cambridge that we might want to consider: (a) shops - at present we only have supermarkets, post offices, pharmacies and key convenience stores. We could map every shop. (b) house numbers - we might want to adopt the German scheme for doing this, or consider our own. Perhaps we should update the Cambridge page with what needs doing, big projects and small. There are also areas that will need revisiting (not to mention the huge developments due in the next few years) - Arbury Park (now named Orchard Park apparently) is being looked after, but the area between the University Press and the railway is being developed now. There are new streets in the Ramsden Square area.