Unsupported browser

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

Report A Problem

CANCEL

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:

Profile Types

iF SOCIAL IMPACT PRIZE

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

Publish your project

马路危险警告 / Road hazard warning

马路危险警告
马路危险警告

This product are mainly used in situations manhole covers stolen.When the outer ring was squeezed, the sensor can squeeze the stored energy into electrical energy.When the manhole covers were stolen,switch will bounce.And light tube will turn to red.This product can Avoid much accidents.

University

Zhejiang University, Ningbo Institute of Technology

Zhejiang University, Ningbo Institute of Technology
Ningbo, China

Design

Zhejiang University, Ningbo Institute of Technology

Zhejiang University, Ningbo Institute of Technology
Ningbo, China

Riyu Liu Lu Liu Hui Shen

Featured in this collection

Architecture & Urban Design

Related content

Legal Notice