Automated Underground Bike Storage

This seems pretty extreme, but then space is at such a premium in some cities. Steve 



Japan’s Automated Underground Bike Storage «TwistedSifter

The ECO-Cycle Park is an automated bicycle storage system buried 11 meters under the city streets that can hold up to 200 bikes. 

To use it, you must first sign up for the service—membership costs 2,600 yen ($30) a month, though students pay half that—and be issued an RFID card.Best Bike Storage: ECO-Cycle Robot Stores BIkes in Japan Underground | TIME.com

 
Ever since the solution was implemented in  Konan Hoshi No Koen Park, in 2010, illegally parked bicycles have mostly disappeared from the area. 

“Steel boards are inserted into the ground to create a cylindrical shape, and the soil inside is then removed. We can do this in only two months,” Shotaro Yano, head of the Giken’s underground development division, says about the advantages of ECO-Cycle. “As soil pressure is evenly distributed (thanks to the cylindrical shape), the parking facility is reasonably earthquake resistant. As a carrier device is placed in the center, the distance the bikes have to be moved is minimized.” The construction of an underground bicycle storage unit costs 150 million yen ($1,5 million). Including those under construction, there are currently 43 ECO-Cycle facilities at 16 locations across Japan. ECO-Cycle - Tokyo's Amazing Underground Bicycle Storage System | Oddity Central - Collecting Oddities