Resumen
With the advent of the Internet in private households and in almost every company in the last two decades, many things have changed. One of the major changes concerns the rapid growth of the e-commerce utilization, which brings changes to the transportation system ? e.g., courier, express and parcel service providers (CEP) sector with it. Thus, the CEP sector is the most increasing and dominant logistics sector worldwide. Especially in agglomerations, a high growth potential is expected for the future. It is mostly driven by the demand of private households and retail in urban agglomerations. Considering the importance of CEP, the knowledge about CEP ? from a transport modeller's view ? is still scarce. There are several studies with focus on consumer's e-commerce behaviour or the supply side. However, ? as far as the authors are aware of ? there are no extensive studies examining both, transport demand and supply. This, however, is crucial for a better understanding and modelling of CEP actors. We present our first results and a theoretical and empirical based approach to characterise not only the supply side of CEP service providers, but also the demand side of private households, and businesses regarding e-commerce as a driver for the development of freight demand.