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

Safe.Keeper / Bus traffic lights


Motorcycles and bicycles running in between streets and sidewalks are a traffic hazard.
Collision accidents may occur between bus users boarding on/off buses and these cyclers. It is more dangerous during night time because the view becomes even less clear.
We need a measure to solve these dangerous
situations. “Safe.Keeper” is a traffic light design system that informs the boarding on/off of bus users. It shows a stop sign at the rear of the bus while informing the bus users at the front of the bus that the bus has stopped. We propose “Safe.Keeper” which protects the safety of the passengers.


Hoseo University

Hoseo University
Chungcheongnam-do, South Korea


Hoseo university

Hoseo university
Seoul, South Korea

Soohwan Kim