MyAccessibleEU Obstacle Mapper
MyAccessibleEU Obstacle Mapper runs on Android devices and can be used in locations where there is no mobile network connection. It allows people to document obstacles that they encounter that may pose problems for people with restricted mobility. Potential barriers can be mapped via both the mobile app and the mapping interface which let you record a textual description of the obstacle in question, where it is located, whether it is permanent in nature, and also to take or upload a photo so that people can actually see what the obstacle looks like.
Instructions for installing the app and project can be found here.
The online map can be accessed here.
More details about the project and other related maps can be found here.