People who have visited an airport at nights must have seen those multitudes of lights that appear in different colors. You also have an idea that these lights provide assistance to the pilots and flight attendants to visualize the airport layout. However, not all people have the clear idea of how these lights work together and what is the significance of different colors used in the airport lights.
Lighting the Airfield: If you have noticed properly you will understand that not all the lighting systems are same everywhere. Different airports have a different lighting system and each has their own meaning. Normally, the large and commercial airports do have lighting systems to indicate the airport layout which at the same time helps the pilots as a guide on approach.
On the other hand, a comparatively small airport may have simple lighting that is placed to the outline edges. You may also have found some small and private airports that literally have no lighting systems at all. Normally, the meaning and significance of the lights are same and consistent on the airports that possess their own lighting system.
What are the types of Airport Lighting? Generally, the runway edge lights are raised white lights that are used as an outline on each side of the runway. This indicates the full length of the airport boundary. On big commercial airports, these outline white light colors are subjected to be changed to yellow on the last two thousand of the runways.
Apart from that, there are other types of runway centerline lights that mainly appear in white colors and are embedded into the runway centerline. These types of lights can only be seen at the large airports. People can experience the alternation between white and red for the last two thousand feet and it turns red for the last 1000 feet only.
Other important types of lights are flashing white lights that are mainly placed on each side of the runway threshold. It provides a positive signal of the come close to the end of the runway. Another important light zone for the Airport is the Runway Touchdown zone lights. These types of lights are also used in the large airports. They are basically white light bars that are embedded into the runway on both sides of the centerline. Generally, they start with an extended range from 100 feet past the runway place to the three thousand feet or to the middle portion of the runway.
Green and yellow lights are also used as taxiway centerline lead-off signals in different airports. These lights indicate people about the way that lead them from the airport terminal to the taxiway. This lighting system offers visual direction to the pilots and helps them to leave and enter the runway area.
There is a different type of airport and runway lightingsystemthat can be noticed at different airports, i.e. land and hold short lights. These lights are used on the airfields with the runways that intersect. This lighting system is quite important for the smaller aircraft that lands and holds before the intersection. Generally, the flashing white light indicates the hold for a while.
Other Runway Lighting Systems: You may also find approach configurations of lights that are generally extended at the backward from the runway threshold ranging an area from 1,500 to 3,000 feet. This approach light generally helps the pilot make the move from an instrument landing to a more visual approach. The pilot may get helped from another sequenced light. This sequenced light is also known as rabbit and it will appear as a way to help the pilot traveling toward the runway center.