Transportation: Whenever people travel by Bus to Hameln-Pyrmont. E.g. if people travelled by public transport about 20 minutes from place A to B. Thus they got carbon credits of 20 minutes; these 20 minutes can be used by city resident to accessbicyclesicycle (city bicycle means bicyclebicyle in Freiburg im Breisgau https://www.frelo-freiburg.de/Bicycle station are completely charged by solar panel to prthe ompanelsreen energy. Bicycle are diffeBicyclesor senior ciE-bikeE bike, for school and young people nbicyclesicycle (Not only smart but also healthy city). In this way people uses more bicycle instead of cars to attend weekend markets. remainig time of bicycle is paid by user.