Queue Warning

Queue Warning Systems help drivers avoid rear-end collisions by alerting them to slowed or stopped traffic ahead. Using sensors, cameras and communication technologies, these systems detect congestion and send real-time warnings through roadside signs or in vehicle alerts. They are especially useful in work zones and rural areas, where unexpected slowdowns can pose serious safety risks. Connected vehicle and ITS technologies are expanding the reach of queue warning systems. Explore executive briefings, data visualizations, and a case study to see how queue warning is making a difference on U.S. roadways.