Terrain awareness and warning systemとは 意味・読み方・使い方

A terrain awareness and warning system (TAWS) aims to prevent "Controlled Flight Into Terrain" (CFIT) accidents. The actual systems in current use are known as ground proximity warning system and enhanced GPWS. The U.S. Federal Aviation Administration (FAA) developed the TAWS term to encompass all current and future systems which meet the relevant FAA standards. New systems, with different names than GPWS and EGPWS, may be developed which meet TAWS objectives. As well, the term TAWS is sometimes used to refer to second-generation EGPWS systems as opposed to first generation GPWS systems, although this usage can be confusing.