We're working on a project in that direction [0]. The basic idea of the app is that cyclist record their bike rides through the city and accelerometer data is

We're working on a project in that direction [0]. The basic idea of the app is that cyclist record their bike rides through the city and accelerometer data is used to report dangerous situations (e.g. a car crossing a cycle lane without regards for the cyclists). It turns out that this accelerometer data can also be used to check the cycle path quality. Some cities respond well to the idea while others just ignore the problem [0]: https://www.mcc.tu-berlin.de/menue/forschung/projekte/simra/parameter/en/ https://www.mcc.tu-berlin.de/menue/forschung/projekte/simra/...