Which of the following statements best defines a controlled intersection?

• A. An intersection with a traffic signal, stop sign, or yield sign
• B. An intersection with no signs or signals
• C. An intersection with roundabouts only
• D. A simple crossroad

Answer: (A)

A controlled intersection is one where traffic flow is governed by a device that directs when vehicles must stop, yield, or proceed. The presence of a traffic signal, stop sign, or yield sign provides an explicit instruction to drivers, reducing confusion and helping pedestrians and other drivers know who goes first. That’s why describing an intersection as having a signal, stop sign, or yield sign best captures the idea of control at intersections. An intersection with no signs or signals is uncontrolled, a roundabout is a type of controlled intersection but not the only one, and a simple crossroad without control isn’t controlled.