This may be due to a "local practice" or may also be due to the use of older/out moded signal equipment.
Red, red and amber, green, amber, red. It depends where you are. In North America, they go red, green, yellow, red. In at least some places in Europe they go red, amber, green, amber, red.
The green light on the traffic light is on the bottom. The yellow is in middle, the red is on top. However, in some municipalities, the traffic lights are not vertical, they are horizontal. In these instances, the green light is usually, but not always, the furthest to the right.
This is called a "stale green" signal. It is about to change to amber. This is also recognized at some intersections by the flashing crosswalk signal informing pedestrians not to cross.
The lowest light on a traffic signal is green. Some cities use traffic lights that are not arranges top to bottom but rather side to side. In this event the green light is usually the furthest to the right.
Some lights have sensors :)
Some lights have sensors :)
The duration of a green traffic light varies based on factors such as location, traffic volume, and the specific traffic signal system in use. Typically, green lights can last anywhere from 20 to 90 seconds, but some may be shorter or longer depending on the intersection's design and traffic patterns. Traffic engineers adjust these timings to optimize traffic flow and ensure safety for both vehicles and pedestrians.
They have moition sensors that detect movement
Some intersections have traffic lights instead of round abouts because there is too much traffic on some intersections for a roundabout to be safe. Roundabouts have to have a certain amount of traffic to be safe enough for no traffic light.
traffic lights can hurt animals such as deer.Deer freeze or run in front of cars when hey see lights. Imagine now a deer and LOTS of lights
The duration of a green light on a traffic signal can vary widely depending on the specific intersection, traffic conditions, and local traffic regulations. Typically, green lights last anywhere from 30 seconds to a couple of minutes. Some intersections may have adjustable timers that change based on real-time traffic flow. For precise timings, it's best to refer to local traffic authority guidelines.
The traffic lights impacted the world because it gave some rules in driving and so there were not that much accidents to happen.