Autostrada del Brennero installed variable message signs to inform users about dynamic speed reduction measures for environmental purposes as continuation of the activities carried out within the BrennerLEC (Brenner Lower Emissions Corridor) project.

From 2016 to 2021 Autostrada del Brennero coordinated the BrennerLEC project, co-funded by the European Commission. Its main aim was the creation of a lower emissions corridor (LEC) along the A22 motorway section through the Trentino-Alto Adige region, by implementing on an experimental basis dynamic traffic management systems for the improvement of air quality, climate protection and noise protection in some pilot sections (LEZ – lower emission zones).