US 12,094,354 B2
Systems and methods for monitoring and providing alerts for takeoff runway intersections
Anil Kumar Songa, Bangalore (IN); Kalaiarasu Velappan, Bangalore (IN); and Dileep Thekkumkara, Bangalore (IN)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Jan. 6, 2022, as Appl. No. 17/647,270.
Claims priority of application No. 202111049325 (IN), filed on Oct. 28, 2021.
Prior Publication US 2023/0136572 A1, May 4, 2023
Int. Cl. G08G 5/00 (2006.01); G08G 5/06 (2006.01)
CPC G08G 5/065 (2013.01) [G08G 5/0013 (2013.01); G08G 5/0021 (2013.01); G08G 5/0086 (2013.01); G08G 5/0091 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A flight deck system for identifying valid runway intersections for takeoff, the flight deck system comprising:
an aircraft display device in an aircraft; and
a controller configured to:
estimate a runway length required for takeoff based on aircraft parameters;
estimate, at each of a plurality of runway intersections, a corrected runway length available for takeoff at the runway intersection by applying an elevation correction, a temperature correction, and a gradient correction to an actual length of the runway from the runway intersection to the end of the runway;
determine, based on the estimated runway length required for takeoff and the corrected runway length available for takeoff at each of the plurality of runway intersections, each valid runway intersection from the plurality of runway intersections whose corrected runway length is long enough for use by the aircraft for takeoff and each invalid runway intersection from the plurality of runway intersections whose corrected runway length is not long enough for use by the aircraft for takeoff; and
signal the aircraft display device to display on a map depicting the takeoff runway an invalid intersection icon adjacent to each invalid runway intersection.