Method and system for traffic control and traffic emission control

Method for traffic control by controlling traffic emission, using a communication server, which maintains a digital emission map in a storage device of a defined geographical region and which updates the emission map by external sources, comprising the steps: - providing data of the emission map to a onboard unit (OBU) in a car via a wireless network, - calculation of a alternative route by bypassing areas which are highly impacted by emissions, - tracking of the alternative route and transferring the tracking information to the communication server, - calculation of a digital bonus for digital payment by the communication server, and transferring the digital bonus to a digital account, the OBU or mobile device.