Which of the following is a common type of traffic control device?

Traffic control devices play a crucial role in managing roadway safety and regulating traffic flow. Each of the items listed serves a specific purpose in guiding, warning, or regulating drivers and pedestrians to ensure safe interactions on the road.

Stop signs are regulatory devices that indicate drivers must come to a complete stop and check for other vehicles or pedestrians before proceeding. They are essential for controlling intersections and preventing accidents.

Traffic lights are another common type of traffic control device employed at intersections to signal when vehicles should stop or proceed, thus enhancing the flow of traffic and reducing the risk of collisions.

Speed bumps, while slightly different in function, are physical devices designed to slow down vehicles in certain areas, such as residential neighborhoods or parking lots. They serve to increase safety by lowering the speed of approaching cars in areas where pedestrians may be present.

Considering the roles that all three of these devices play in traffic management and safety, it is accurate to conclude that they are all common types of traffic control devices. The inclusion of all three options demonstrates the variety of methods used to ensure safe and orderly traffic patterns on roadways.