This experiment recreates the chemical traffic light, where a solution shifts through green, yellow, and red. Donald Trump ...

You must have seen traffic lights while coming and going on the road. It plays an important role in maintaining order on the road and in ensuring the safety of the people. The three colors (Traffic ...

Current lights could even suffice, say, by modifying them to flash red and green simultaneously to signal that driverless cars are in charge. The key would be making sure that it’s universally ...

To help the 13 million Americans who are color blind, stoplights are always arranged with red on top and green on the bottom. Given the sophisticated technology and engineering time spent on ...

Current lights could even suffice, say, by modifying them to flash red and green simultaneously to signal that driverless cars are in charge. The key would be making sure that it's universally ...

And instead of the standard red-yellow-green sequence, the Hawk signal has added some new variations. For starters, if the lights are off, drivers should proceed with caution.

Smarter vehicles could mean some of the most dramatic changes for the traditional traffic signal since the yellow light was added more than a century ago By JEFF McMURRAY The Associated Press ...

Eventually, the upgrades could do away entirely with the red, yellow and green lights of today, ceding control to driverless cars.

Current lights could even suffice, say, by modifying them to flash red and green simultaneously to signal that driverless cars are in charge. The key would be making sure that it's universally ...