A yellow arrow traffic light means that you should yield in the direction you are going. These are often in place when you are turning left.
In the U.S.A it means you have the right of way but proceed with caution.
Nothing. there is no blue light.
If the traffic light is not powered, you are to treat it as a all-way stop sign. I'm assuming that's what you mean by that. If the traffic light is broken, likely there will be utility workers out there working to fix it and you follow their instructions if any.
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.
It stands for speed and precision.
A yellow arrow traffic light means that you should yield in the direction you are going. These are often in place when you are turning left.
It means stop first then can proceed if clear
The green arrow is what is often known as a "filter." This means vehicles are permitted to proceed with caution in the direction indicated by the arrow.
A yellow traffic light means to slow down or stop completely. When the light is yellow it is about to change to red in a few seconds. Contrary to popular belief by many drivers yellow does not mean speed up.
owdown
On traffic lights it means slow down.
It means stop first then can proceed if clear
The yellow *traffic* light means to slow down and get ready to stop because it is about to turn to the red light.
On traffic lights it means slow down.
A green arrow means that (assuming the traffic lights are not malfunctioning) it is safe to turn in the direction of the arrow, if you are in the correct lane. This is different from simply a green light, which means you may turn (if the green light is for the turn lane) but you must yield to oncoming traffic.
It means that you may make the indicated turn on a permissive basis, after yielding to conflicting vehicles and pedestrians. This is usually the same as turning on the circular green, but the flashing yellow arrow can be displayed at times when the straight ahead movement can not be given a green light. The purpose is to eliminate a dangerous condition called yellow trap. It occurs when the circular green is used to allow permissive turns, and one circular green ends sooner than the oncoming circular green. The left turning driver receiving the earlier yellow light tries to turn across traffic that still has a green light, causing an accident. The flashing yellow arrow can keep flashing until the oncoming green gets a yellow, allowing the driver to turn safely.
By "amber" I assume you mean yellow. A yellow traffic light indicates that your "right of way" is ending within the next couple seconds. When the light turns yellow you shouldn't enter the intersection if you haven't already, unless you've reached "The point of no return". It's not illegal to go through the intersection while the traffic light is yellow, but if you can stop you should, if you can't stop then go through the intersection (determined by your own judgement). A yellow light is basically a warning of a red light coming, where it is illegal to proceed through the intersection. The duration of a yellow light depends on the road the traffic light is governing. For a side road the traffic light may only show a yellow for around 3 seconds, for a major road such as a state road or US Highway, the traffic light may show a yellow for 4-6 seconds. These timings all depend on the road that the traffic light is governing and what the speed limit is for that road.