2024年8月13日 · Airborne Collision Avoidance System (ACAS) was developed as a safety-enhancing system to reduce the likelihood of mid-air collisions between aircraft. ACAS is a family of airborne devices that function independently of the ground-based Air Traffic Control (ATC) system and provides collision avoidance for a broad spectrum of aircraft types.

We view TCAS II systems as a supplement to the pilot who has the primary responsibility for avoiding midair collisions. The TCAS II system provides no protection from threat aircraft without operative transponders. TCAS II does not alter or diminish the pilot’s basic authority and responsibility to ensure safe flight.

2022年3月25日 · ACAS/TCAS indications are intended to help pilots avoid potential collisions. For the system to achieve its intended safety benefits, pilots must operate the system and respond to resolution advisories. For Europe, ACAS/TCAS is estimated to reduce the risk of mid-air collision by a factor of about 5.

Currently, the only commercially available implementations of ICAO standard for ACAS II (Airborne Collision Avoidance System) is TCAS II version 7.1 (Traffic alert and Collision Avoidance System). ICAO Annex 10 vol. IV states that all ACAS II units must be complaint with version 7.1 as of 1 January 2017.

A traffic alert and collision avoidance system (TCAS), pronounced / ˈ t iː k æ s / TEE-kas), also known as an Airborne Collision Avoidance System (ACAS), [1] is an aircraft collision avoidance system designed to reduce the incidence of mid-air collision (MAC) between aircraft.

欧洲航空体系称为 机载防撞系统 （ACAS： Airborne Collision Avoidance System）与美国航空体系称为空中交通预警和防撞系统（TCAS:Traffic Alert and Collision Avoidance System））两者实际上的含义、功能是一致的。

The Airborne Collision Avoidance System (ACAS) II concept (realised as Traffic alert and Collision Avoidance System (TCAS) II equipment) is an airborne avionics system which acts independently of ATC as a last resort safety net to mitigate the risk of midair collisions.

空中防撞系统（英文：Traffic Collision Avoidance System，缩写：TCAS）是安装于中、大型飞机的一组电脑系统，用以避免飞机在空中互相冲撞。 现今大部份民航客机都设有空中防撞系统功能。

ACAS/TCAS Airborne collision avoidance systems are designed to improve safe-ty by acting as a ‘ last resort ’ method of preventing mid air colli-sions by recommending pilots to manoeuvre in the vertical plane when a risk of collision is detected. The concept for an airborne collision avoidance system, which is

2012年8月6日 · 欧洲航空体系称为机载防撞系统（ACAS： Airborne Collision Avoidance System）），与TCAS实际上的含义、功能是一致的。 防撞系统可显示飞机周围的情况，并在需要时提供语音告警，同时帮助驾驶员以适当机动方式躲避危险，这些都有助于避免灾难性事故的发生。