Architecture, Building and Structure Design Free Walker Overpass by Wenkai Xue Free Walker, productization overpass design, is a project which will be constructed in the first half of 2018. It is designed fully considering about the geographical location and the human environment nearby. The structure of it breaks the stereotype so that it seems like only has one pier to sustain the overpass. Free Walker has pavement and bike lanes, which is not only for pedestrians but also for riders feel free to cross the road. On the one side of it, designers set an elevator so that it will be easy for any kinds of human being such as babysitting-parents, the elder and the disabled.