Commercial traffic is essential to a functioning economy and a prosperous society. The Swiss population benefits from this every day: shop shelves are well stocked with our favourite goods, waste is regularly disposed of, and packages ordered online are delivered to our homes. The same traffic also places a burden on the transport system, society and the environment. However, little research has been done on what actually constitutes commercial traffic, which is why there is little discussion on how to deal with it in Switzerland.