Traffic lights — South Carolina Permit Test

Traffic control devices include directions given by law enforcement, highway personnel and school crossing guards.

A person directing traffic can respond to conditions a fixed sign or light cannot, so their directions carry the same force.

Traffic control devices include traffic signals, signs, pavement markings, and directions provided by law enforcement, highway personnel, and school crossing guards.

On a vertical traffic light, the lights are red, yellow and green from top to bottom.

A fixed order lets drivers, including those who cannot tell colors apart, read the signal from the position of the lit lamp.

Traffic lights are usually at intersections and illuminate red, yellow, and green from the top to the bottom, when on the same traffic device.

On a horizontal traffic light, the red light is on the left, yellow is in the middle and green is on the right.

Knowing the order means you can tell which lamp is lit even when glare washes out its color.

the red light is on the left, the yellow light is in the middle, and the green light is on the right.

A green light means you may go through the intersection, with caution, if it is clear to do so.

A green light only stops cross traffic from having the right to go; a late runner or a pedestrian may still be in your path.

GREEN Traffic Light—This means you may go through the intersection if it is clear to do so, with caution.

A steady yellow light warns that the signal is about to turn red, so you should stop and wait for the next green light.

Pushing through on yellow risks being in the intersection when cross traffic receives its green.

Therefore, you should stop your vehicle and wait for the next green light.

If you are already in the intersection when the light turns yellow, clear the intersection as quickly as possible.

Stopping or reversing inside the intersection leaves your car in the path of traffic about to get a green.

If you are already in the intersection, clear the intersection as quickly as possible.

A flashing yellow light means slow down and proceed with caution, prepared to stop for traffic entering the intersection.

A flashing yellow does not stop cross traffic, so other vehicles may still be entering in front of you.

Flashing YELLOW Traffic Light—This means slow down and proceed with caution.

At a flashing red light you must come to a complete stop and use the same procedure as at a stop sign.

A flashing red gives no one a green, so each driver must stop and take a turn as at a stop sign.

before entering and use the same procedure as you would at a stop sign, by coming to a complete stop.

Which of these counts as a traffic control device you must follow?

A school crossing guard's directions. A person directing traffic can respond to conditions a fixed sign or light cannot, so their directions carry the same force. South Carolina Driver's Manual, p.61: “Traffic control devices include traffic signals, signs, pavement markings, and directions provided by law enforcement, highway personnel, and school crossing guards.”