Which segment guides drivers from their normal traffic path to a new path around the incident, often using tapers made of cones or flares?

• A. Advance Warning Area
• B. Buffer Space
• C. Incident Space
• D. Transition Area

Answer: (D)

This question tests how traffic is steered around an incident. The Transition Area is the part of a work zone where drivers are guided from their normal path onto a temporary path around the incident, using tapering lines of cones or flares to create a smooth lane shift. This area connects the advance warning zone—where drivers are alerted to changes ahead—to the work area where responders operate, ensuring a safe, gradual merge and reduced speed adjustments. The advance warning area tells drivers something ahead but doesn’t provide the actual path change. The buffer space is the safety gap between moving traffic and the work space, not the guiding path itself. The incident space is where the incident and workers are located, not the route around it. So the Transition Area best describes the path-shaping portion around the incident.