Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

JOJOJO / Road facilities


When pedestrians and bicycles travel between city roads, accidents often occur at the corners of city buildings. To avoid that, the biker must ring the bell and the pedestrian should also pay attention to it. However, accidents may occur if either side is not paying attention.
JOJOJO is a sound device that is installed in corners. When the bike runs over it, it will make a "JOJOJO" sound to warn pedestrians around the corner. If the bike tries to avoid the device, the rider will also be able to see the pedestrian earlier by going around the outside to avoid accidents.


Taiwan Tech

Taiwan Tech
Taipei, Taiwan

Hao-Ping Chang,
Taiwan Tech

I-Chen Chiang,
Taiwan Tech