Runway Awareness and Advisory System (RAAS) is a Honeywell computer system development aimed at the providing flight crew with information regarding the relative position of their aircraft to the runway of the aerodrome that they are operating at. In addition to utilization of Global Positioning System (GPS) and onboard sensors, RAAS combines the airport geographical layout information stored in the database of the Enhanced Ground Proximity Warning System (EGPWS) to oversee the movements of the aircraft around the aerodrome. Voice announcements are activated when the aircraft is perceived to have reached crucial intersections, such as alerts when approaching an active runway or lining up and moving on a taxiway at more than 40 knots. During take off run, approach and landing, RAAS also informs the flight crew of the remaining runway length. The RAAS may also be programmed to alert flight crew of their incorrect intrusion into a protected area meant for aircraft landing and takeoff, wrong runway usage as well as potential surface dangers.
**Human Factors Relation
1) Increase Situational Awareness
2) Prevent Hazardous Incidents
Sources:
https://www.skybrary.aero/…/Runway_Awareness_and_Advisory_S…
http://www51.honeywell.com/…/SmartRunway_SmartLanding_descr…
http://aviationknowledge.wikidot.com/aviation:runway-awaren…
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