U.S. Department of Transportation. Although not excessively strict, these regulations are firm and require significant time to amend. The Department of Transportation is receptive to implementing systems that modify light cycles based on traffic flow, but the same cannot be said for the installation of new lights that deliver additional information — the cameras mounted on traffic signals do not qualify. The primary issue is that introducing timers to traffic signals may confuse drivers, resulting in distracted driving and an increase in accidents.
Another obstacle, though somewhat theoretical, is the expense associated with such a project. The installation of the required module would range from $190 to $1,930 per traffic signal, and the total count of traffic lights in the United States remains unknown. We only recognize that there are hundreds of thousands, many of which are in urgent need of maintenance. So what should take precedence? Should we enhance the signals, incorporate a fourth color to suit the increasing number of autonomous vehicles, or set up timing modules? There is a limited budget available.