EFFECTIVELY CONTROLS TRAFFIC: The STOP sign is a regulatory sign that is used when traffic is required to stop. Its easily recognizable red octagon shape with white border and large white letters lets drivers immediately know when to stop in a parking lot, on private property, or on the roadway.

What type of sign is a traffic sign?

Types of road signs are divided into three basic categories: regulatory, warning, and guide signs. The shape of a traffic sign communicates important information about the sign's message. In poor visibility conditions, such as heavy fog, you may be able to make out only the shape of a sign.

Is traffic light a traffic sign?

n. A road signal for directing vehicular traffic by means of colored lights, typically red for stop, green for go, and yellow for proceed with caution. Also called stoplight, traffic signal.