You cannot drive in this lane.
On traffic lights it means slow down.
A traffic signal displaying a steady circular yellow light means that you should use caution when going through the intersection. You have the right away, but watch for other cars.
After stopping, you may turn right, unless prohibited by some other sign or signal.
Red=stop red flashing= light is broken, use your judgement in crossing.
When you say 'Light' you probably mean, 'White light'. White light, or just plain old light, say, from the Sun, is composed of light of all the different visible colors. Light can be separated out into all the colors that are in it by using a prism or by reflecting the light off of tiny water droplets in the sky (creating a rainbow). The weirdest way to split light into its colors that I have ever seen is caused by light bouncing back from the tiny glass balls that are spread on wet traffic-stripe paint. It is really strange to see "rainbows" on the street!
If the aircraft is in flight, a steady green light signal from the control tower means cleared to land. If the aircraft is on the ground, it means cleared for takeoff. If the light is aimed at ground vehicles or foot traffic, steady green means cleared to cross the runway, or proceed.
On traffic lights it means slow down.
A red light - steady or flashing - means STOP. A steady amber light means Caution - signal about to change. A flashing amber light means SLOW DOWN.
A traffic signal displaying a steady circular yellow light means that you should use caution when going through the intersection. You have the right away, but watch for other cars.
After stopping, you may turn right, unless prohibited by some other sign or signal.
They're an additional feature to focus your attention towards the traffic light. The human eye is quicker to catch a flashing light than a steady light.
Yield. It usually means the cross-traffic has a blinking red light (stop sign). slow down because someone may pull out
clear for landing or takeoff.
stop or give way.
Nothing. there is no blue light.
Red=stop red flashing= light is broken, use your judgement in crossing.
semáforo: traffic light