Approximately five percent of vehicles are responsible for more than 90% of toxic emissions. With this system, it can be determined which vehicles are “big emitters” (pollute more) and policies that facilitate their identification can be created. And with this, point out the scientists, traffic emissions (CO2, CO, NOx, HC, PM) would be reduced and energy efficiency would increase, given that a decrease of emissions always implies less consumption. In addition, measures for optimizing consumption and emissions could be adopted, like varying speed limits on high capacity roads that enter and exit big cities.
According to its creators, the device is the only prototype on the market capable of measuring the emissions of each vehicle circulating on a high capacity road, that is, one that has more than two lanes. To test the effectiveness of the system, the researchers recently carried out a final demonstration on the A6 highway near Madrid, installing equipment that measured the concentrations of pollutants coming from all the vehicles on the road.