# Directional Manhole Covers ‘Eco Sign' Finds Your Bus Stops, is Powered by Rain Drops By Brian G Randles | Published 2009-11-06 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/eco-sign References: [yankodesign](http://www.yankodesign.com/2009/11/04/step-onto-the-manhole/) The 'Eco Sign' was designed by Cheolyeon Jo and Youngsun Lee and has to be one of the most efficient inventions of all time. The only minor hiccup is that you will probably get run over by a car while trying to find out where you are going. The 'Eco Sign' is an [electronic manhole cover](https://www.trendhunter.com/trends/manhole-cover-1) that gives directions to [bus stop or train stop](https://www.trendhunter.com/trends/amazon-bus-station). Did I mention is was [powered by rain drops](https://www.trendhunter.com/trends/mag-drive) that spin in an electric fan underneath? Pretty neat stuff, as long as you don't spend too much time standing in the middle of the street. Check out more on the 'Eco Sign' below. ## Trend Insights (Trend Hunter) - Score: 3.1/10 - Popularity: 39% | Activity: 45% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial - Top markets: North America, Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What Makes This Trend Stand Out - **Directional Manhole Covers:** Using manhole covers as an innovative wayfinding tool. - **Eco-powered Signage:** Using eco-friendly energy sources to power electronic signage. - **Smart Wayfinding:** Integrating technology to provide efficient, location-based wayfinding services. ### Sectors Adopting This - **Urban Infrastructure:** Implementing directional manhole covers and eco-powered signage to enhance the efficiency of urban infrastructure. - **Green Technology:** Developing eco-friendly energy sources for electronic devices such as the 'Eco Sign'. - **Tourism and Transportation:** Applying smart wayfinding solutions to enhance travel experiences and improve transportation efficiency. ## Related on Trend Hunter - [Cooling Bus Shelter Designs](https://www.trendhunter.com/trends/cooling-bus-shelter.md) - [Electric Transportation Concepts](https://www.trendhunter.com/trends/electric-transportation-concept.md) - [Rainwater Multifunctional Planters](https://www.trendhunter.com/trends/raindrop-1.md) - [Regenerative Cycling Equipment](https://www.trendhunter.com/trends/energy-keeper.md) - [Street Lamp Charging Stations](https://www.trendhunter.com/trends/lamppost-ev-charger.md) - [Character-Like Roadway Bollards](https://www.trendhunter.com/trends/safety-bollard.md) - [Rotating Solar Powered Benches](https://www.trendhunter.com/trends/eness-1.md) - [Baseball-Inspired Manhole Covers](https://www.trendhunter.com/trends/manhole-cover-1.md) - [Urban Solar Charging Benches](https://www.trendhunter.com/trends/perovia.md)