Drivers turning right on red at traffic signals need a specific amount of time to safely make their turn without causing delays. A study looked at real-world data from five intersections in the US to figure out this critical time. They found that drivers are quicker to make the turn at traffic signals compared to stop signs. This means that the time needed for right turns on red at traffic signals is usually shorter than what is recommended for stop signs. This information can help traffic planners better estimate delays and capacity at signalized intersections.