What does a transit priority signal look like?

Answer: C — white vertical bar on dark background

A green arrow is used in traffic signals to indicate it is safe to proceed in a specific direction, usually accompanied by a green light. This is different from a transit priority signal, which is designed to give buses or other modes of transit priority over other vehicles at an intersection. A red X is typically found on lane control signals and is used to indicate that a lane is closed and drivers should not use it. This does not apply to transit priority signals. A yellow flashing light is often used as a warning signal to indicate caution or that something is ahead, such as a traffic light or pedestrian crossing. This is not indicative of a transit priority signal. The only correct option is C, a white vertical bar on a dark background. This is the most common way to indicate a transit priority signal, often accompanied by a sign that reads "Transit Signal Priority" or "Bus only signal