Traffic signals in Idaho
The Idaho Driver's Handbook shows or names everything on this page: 18 in all, on pages 55–57, 69.
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Red Light
A steady red circular indication means stop. Come to a complete stop before you reach the stop line, crosswalk, or intersection. You can make a turn on a red light unless posted “no turn on red.”
Manual page 55 · Open this page in the manual (Manual page 55)
Yellow Light
A yellow light means caution. An amber or yellow circular indication warns that the signal is about to change to red. If you have not entered the intersection and can come to a safe stop, you should do so. If you are already in the intersection, you should continue moving and clear it safely.
Manual page 55 · Open this page in the manual (Manual page 55)
Green Circular Light
A green circular indication means “go.” You may proceed forward. If you are in the left-turn lane, you must yield to oncoming traffic and pedestrians in crosswalks before turning left. You should not enter the intersection unless there is sufficient space on the other side of the intersection for your vehicle to completely pass through the intersection, so you are not blocking the intersection, regardless of a traffic control signal to proceed.
Manual page 55 · Open this page in the manual (Manual page 55)
Flashing Red Light
A flashing red indication means stop. You must come to a complete stop, yield to cross traffic or pedestrians, and then proceed when clear.
Manual page 55 · Open this page in the manual (Manual page 55)
Steady Red Arrow
While the steady red arrow indication is displayed, no turn is permitted in the direction of the arrow until a green or yellow light indication allows movement.
Manual page 55 · Open this page in the manual (Manual page 55)
Flashing Yellow Light
A flashing circular yellow indication means caution. You should slow down, look carefully for hazards, and proceed with caution.
Manual page 55 · Open this page in the manual (Manual page 55)
Solid Yellow Arrow
The solid yellow indication with an arrow means the signal for the turn is changing. If you have not entered the intersection and you can come to a safe stop, you should do so. If you are already in the intersection, you should continue the turn and clear the intersection safely.
Manual page 55 · Open this page in the manual (Manual page 55)
Flashing Yellow Arrow
The flashing yellow arrow means turns are allowed after yielding to oncoming traffic and pedestrians in crosswalks.
Manual page 56 · Open this page in the manual (Manual page 56)
Green Arrow with Steady Red Light
When a green arrow is shown along with a steady red indication, you may proceed only in the direction of the green arrow.
Manual page 69 · Open this page in the manual (Manual page 69)
Doghouse Signal
Most commonly used to indicate protected left turns. The yellow light indicates that the protected left turn movement is ending.
Manual page 56 · Open this page in the manual (Manual page 56)
Pedestrian Hybrid Beacon: Dark
1. The signal light the driver sees is unlit until the pedestrian pushes the crosswalk button. ... 6. The signal light the driver sees is unlit and they may proceed if the crosswalk is clear.
Manual page 56 · Open this page in the manual (Manual page 56)
Pedestrian Hybrid Beacon: Flashing Yellow
2. Then it turns to a flashing yellow light that warns drivers approaching the crosswalk to slow down.
Manual page 57 · Open this page in the manual (Manual page 57)
Pedestrian Hybrid Beacon: Steady Yellow
3. The flashing yellow light is followed by a solid yellow light, telling drivers to prepare to stop.
Manual page 57 · Open this page in the manual (Manual page 57)
Pedestrian Hybrid Beacon: Steady Red
4. Two solid red lights indicate to drivers to stop at the stop line. Vehicles must stop completely when the signal lights are steady red.
Manual page 57 · Open this page in the manual (Manual page 57)
Pedestrian Hybrid Beacon: Alternating Flashing Red
5. When the red lights flash alternately, the driver must stop, yield to pedestrians in the crosswalk, and proceed when the crosswalk is clear. Normal vehicle traffic can resume when the light turns dark again.
Manual page 57 · Open this page in the manual (Manual page 57)
Pedestrian Signal: Steady Orange Hand
Push the button to activate the system.
Manual page 57 · Open this page in the manual (Manual page 57)
Pedestrian Signal: Walking Person
Start crossing when all vehicles are stopped.
Manual page 57 · Open this page in the manual (Manual page 57)
Pedestrian Signal: Flashing Hand with Countdown
Continue crossing; the signal will count down.
Manual page 57 · Open this page in the manual (Manual page 57)