with urban cites not having enough street space for setting up proper bike storage infrastructure, the problem of overcrowding and illegal parking can cause potential hazards for emergency situations and general pedestrian navigation. in japan, an earthquake-resistant underground bike parking system has been developed by giken to help resolve the issue, approaching the situation through their design concept, which is based on culture above ground, and function underground. known as the ‘eco cycle’, the project is engineered as individual cylindrical shaped structures measuring 8.5m x 11.6m below the street surface, where a mechanically operated carrier lifts and organizes bikes into any of the open 204 stalls. the design utilizes a staggered arrangement with loading pallets that maximize the amount of storage with a minimal spatial footprint.