Media playback is unsupported on your device

Inside an underground Japanese robotic cycle park

18 November 2013 Last updated at 09:12 GMT

Tokyo has many cyclists but limited space for parking bicycles on the city's crowded streets and pavements.

The solution is to park your bike underground. Spencer Kelly goes behind the scenes to see how an underground robotic bike park works.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.