What do you know about the systems of avoiding collision on planes

Years ago, Mr. Cox said, he was landing at the Boeing 737 at the Orlando International Airport, when the system alerted him and his co-pilot for traffic nearby. The pilots looked around for another aircraft, but did not see anything. Then, TCAS provided an immediate instruction: “climbing.” Mr. Cox said that he did this and later saw a small aircraft below him. He said that a collision would have been frightening.
After a series of confrontation, in 1986, a passenger jet and the Seritos, California, in the accident of small aircraft, in which 82 people died, the Congress directed the federal aviation administration that TCA on all major commercial airplanes. was needed. It is optional on military aircraft, however, and it is not clear whether the army helicopter involved in the accident on Wednesday was equipped with it.
Mr. Cox and other security experts stated that the accident occurred at relatively low altitude, where TCAS’s most important avoiding instructions would have been limited by design. As the jets arrive at an airport, they are likely to be close to each other at high altitude. As a result, it limits the issuing alerts to avoid the system confusion and obstruct safety.
Automated dependent monitoring-broadcast
In recent years, FAA is required to use another system for all passenger airlines and many other aircraft, called automated dependent monitoring-broadcasts. The technology transmits the location, height, speed and other data of the aircraft that install it every second. Those broadcasting can be picked up by other aircraft or equipment on the ground.
Air traffic controllers and several passenger aircraft pilots rely on the information obtained from the ADS-B system, which can provide detailed maps of the aircraft in an area. This information is useful in imagining what is happening in the air, but the system usually does not release TCAS alert. Nevertheless, Ads-B is helpful for pilots, especially when they are flying in bad weather conditions or sometimes when the visibility is low, the Chairman of the Non-Galler Flight Security Foundation, Dr. Hasan Shahidi said.
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