In cities and peri-urban areas of all types, vehicle transit traffic is particularly intense and is the main contributor to air pollutants. A small proportion of high emitting vehicles representing only 2 to 3 percent of the circulating fleet are responsible for over 40 percent of motorised traffic emissions according to site tests and academic studies. These emissions directly affect human health, contribute to climate change, and undermine the quality of urban life.
Barcelona has already deployed a Low Emission Zone (LEZ), but current enforcement tools are insufficient for identifying and acting on high-emitting vehicles in real time. This limitation leads to a disproportionate concentration of polluting vehicles, resulting in poor air quality, elevated noise levels, and increased health risks for residents. Therefore, we are seeking the next step: a more effective solution to accurately identify high-emitting vehicles and enable authorities to notify, sanction, and remove them from circulation.
