The open source online street atlas Open Street Map is produced by volunteers uploading GPS tracks and adding names and features. To get specific areas mapped, mapping parties are organized. A number of interested people meet up to map the area. It’s a lot of fun and provides a social aspect to the all so lonely occupation of the maper.
The latest mapping party took place in Milton Keynes in the UK and is very well documented on the web. A number of people have participated and they covered quite a lot in a previously for Open Street Map (OSM) unmapped area. In the image below each participant is assigned an individual colour. This trace shows what she/he has been mapping.
Image from wiki.openstreetmap.org
The very nice example also comes as an animation. A Python script makes this possible. Instructions to do so can be found here.
Thanks for the link go to Andrew Crooks from GISagent.
Open street map has provided us with nice animations o their GPS traces before. There was the breath taking clip about OSM world wide earlier this year. A version on vimeo: