In legislation or when establishing norms and regulations, threshold values help immensely because they provide measurable quantities that must be adhered to, they serve as a means of orientation for everyone involved. There is an abundance of these rules for manufacturers of commercial vehicles. They specify what sort of engine emissions are allowed, for example, and in what quantities. Or they indicate how heavy, how long or how loud a vehicle can be.
Compliance with noise thresholds, in particular, is as important as ever. To make sure their trucks and buses fulfil these requirements, the acoustics experts at Daimler Trucks routinely go sleuthing in the world of sound waves. At the new, ISO-certified acoustics measurement site for commercial vehicles in Münsingen, they check whether new models or new engine and exhaust variants of Actros vehicles and other Daimler brands satisfy the noise emission limits prescribed by law. And for that, one thing is especially important: silence.