Five.Support the physical structure. When people recognize and want to be involved in reducing carbon dioxide emissions, such as managing a network of bicycle safety to the people in the city can ride bikes.
5.Supporting the physical structure. When people realize and want to come and participate in the reduction of carbon dioxide emissions, such as dealing with the safe trails network, with people in the city can drive the cycling.
5.When the people realized the physical support structure and want to participate in the reduction of carbon dioxide emissions, such as a network management, bicycle safety, and the people in the city can be cycling