Researchers at the University of Rhode Island are approaching with green proposals that could help them capture radiant heat off the roads in big cities and use it to illuminate signs, energy streetlights and heat buildings. The research team has come up with four different proposals to capture this energy.
The first approach is to divide the roads by wrapping them in flexible photovoltaic solar cells on top of the Jersey barriers. This energy can be used for public lighting energy and signals. The second approach focuses on waste heat, on water-filled tubes that can be installed under the asphalt and the sun heats that water. This method can also be used to remove salt bridges when they are frozen.
The third idea is to generate electricity through the thermoelectric effect. The proposal is to replace the asphalt roads completely with tracks made of electronic blocks with LEDs, sensors and photovoltaic cells inside. This system will be able to provide electricity and issue alerts when maintenance is needed.
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