ATSC systems can reduce vehicle wait time by 40%, cut travel time by nearly 26%, and lessen vehicle emissions by 21%, according to Carnegie Mellon University. Digital traffic signals can dispatch pre-processed and raw data to a connected cloud-based control center, such as an intelligent transport system (ITS).
Smart traffic lights or Intelligent traffic lights are a vehicle traffic control system that combines traditional traffic lights with an array of sensors and artificial intelligence to intelligently route vehicle and pedestrian traffic.
The city of Pittsburg, Pennsylvania (USA) is pioneering with smart traffic technology in combination with Artificial Intelligence. Pittsburgh cuts down travel time by a quarter and traffic jams by 40 percent using radar sensors and cameras at every light to recognize traffic activity.
Roundabouts are a safer alternative to traffic signals and stop signs. The tight circle of a roundabout forces drivers to slow down, and the most severe types of intersection crashes — right-angle, left-turn and head-on collisions — are unlikely.
More On: traffic “The white phase concept also incorporates a new traffic signal, so that human drivers know what they are supposed to do,” Hajbabaie said. “Red lights will still mean stop. Green lights will still mean go. And white lights will tell human drivers to simply follow the car in front of them.”
California long has had a reputation as being among the worst states for traffic in the U.S. It's cost of auto ownership and maintenance also is very high, according to WalletHub.
Chicago ranked as the U.S. city with the highest traffic delays in 2022. On a global scale, the Illinois city ranked No. 2, after London in the United Kingdom.
New Jersey is the worst state to drive in, boasting the highest road congestion nationwide and the second-worst road quality. California, which is the second-worst state in our ranking, is also the priciest state for drivers.