Report to local government issues such as potholes, misleading traffic signs, bugs in traffic signs, illegally placed advertisements... In my city (Kraków, Pol

Report to local government issues such as potholes, misleading traffic signs, bugs in traffic signs, illegally placed advertisements... In my city (Kraków, Poland) it leads to fixes. It is important to remember that whoever maintains infrastructure is not omniscient and such reports are likely to be useful. This one is likely to be useful in addition to other actions given your target.