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

when stop? / when stop?

when stop?
when stop?

This product is designed to calculate the fastest time and distance the car needs from the motion into the stationary state according to the speed of the vehicle in order to warn the drivers and passers-by to prevent accidents from happening. With the equivalent substitution of speed and distance, drivers are warned not to drive fast. Cherish life, and keep away from the express!


Central South University

Central South University
Changsha,Hunan, China

hao chang,
Central South University

nannan qiu,
Central South University

ziqi wei,
Central South University