The Smart City is a multifaceted objective aiming at increasing viability of the city for its inhabitants. Mobility in the city is an important dimension of the Smart City for humans and goods, which can either move without assistance or may need special assistance. The objective of this paper is to investigate the role of as-sistive systems for the mobility of humans and goods in order to take into ac-count special needs. We discuss and classify different situations for assistance of humans and goods either by means of technology or humans (and technology) and present different assistive system behaviors already used or to be implement-ed in the future.