In this project, Barcelona Accessible 'illustrates how 40 people with disabilities use mobile phones to photograph every obstacle they come across on the city's streets. By means of multimedia messages they create a map of inaccessible Barcelona on the internet.
The result is a map of Barcelona’s inaccessibility for those confined to wheelchairs, a cartographic representation of the parts of town that are closed to people with handicaps. In this way, 3,578 architectural barriers and stumbling blocks have been documented on canal*ACCESSIBLE since December 2005.'
This sounds like a project that needs to be emulated and repeated in other cities...