Despite an increasing number of reported vibration serviceability problems caused by pedestrians walking on newly built footbridges, floors, and staircases around the world, there is still a lack of adequate codes of practice. There are three key issues that a new generation of relevant design guidelines should urgently address: (1) the absence of a universal model that accounts for the entire energy spectrum of walking loading as well as inter-and intra-subject variability of individual walking forces; (2) the effect of human bodies on the dynamic properties of a structure; and (3) pedestrian "intelligent" interaction with the surrounding people and environment. This article provides a brief overview of the relevant state-of-the-art research that has great potential to change this unsatisfactory state of affairs.