The document proposes a design concept for a social space in the lower part of an overpass. Key points: - The design concept is for a multi-use social space for people aged 5 to 85 years old in an underutilized area below an overpass. - The concept involves modular cubes that can be moved and rearranged by users of different ages to create various public and private spaces. - The cubes would be connected by a track system and powered by an integrated electric system to allow for reconfiguration and use of the spaces.