An eco lane is a special lane for particularly low-emission and therefore environmentally friendly vehicles. The environmental lane may only be used by vehicles that meet certain emission standards. These include, for example, electric vehicles, hybrid vehicles or vehicles that run on hydrogen. By using the environmental lane, these vehicles are rewarded and gain an advantage in traffic, for example by passing through faster. The environmental lane can be established in certain cities or on certain road sections and is intended to help relieve traffic congestion while reducing pollutant emissions. It is also possible for environmental lanes to be closed entirely to individual traffic and only public transport and bicycles are allowed.

The goal of the environmental lane is to encourage the use of low-emission vehicles and reduce pollutant emissions. This will help improve air quality and support the transition to more sustainable mobility.
It is important to emphasize that the environmental lane is not a panacea, but only one part of a broader approach to making road transport less harmful to the environment. Additional measures such as the promotion of public transport or the introduction of measures to reduce car traffic are also necessary to achieve sustainable mobility.