Walking and urban research projects have a big place in my heart. Here is one from Chicago, with quite an extensive bibliography, and a range of events taking place between September 9 - October 22, 2005.
A lot of great people are participating but for the sake of walking I'll just mention: freewalking.org/
- Go explore.
The project intersects with recent public debate in Copenhagen about air pollution in the city. In collaboration with Senior Scientist Jørgen Brandt from The National Environmental Research Institute in Denmark a first prototype is developed for making an indicator that can be placed in the city and display local levels of pollution as well as pollution forecasts on individual streets. The project holds an open source script for displaying data from the Internet in a variety of forms.