# US 8,543,258 B2 · Valuation and simulation of required navigation performance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,543,258 B2 - Document ID: US8543258B2 - Status: Granted - Kind: B2 - Application number: 11/924,815 - Filed: 2007-10-26 - Published: 2009-04-30 - Granted: 2013-09-24 - Earliest claimed: 2007-10-26 - Assignees: The Boeing Company - Applicants: James O. Halvorson; William H. Syblon - Inventors: James O. Halvorson; William H. Syblon - Web page: https://patentgrep.com/patent/US8543258B2 ## CPC - G01C 21/20: Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence) - G08G 5/54: for approach or landing - G08G 5/56: for two or more aircraft - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) ## Abstract A method for illustrating potential benefits resulting from revised navigation procedures to a customer is described. The method includes preparing a model for a revised navigation procedure, determining a landing probability for both an existing minimum separation procedure and a minimum separation determined utilizing the revised navigation procedure, calculating a benefit associated with a difference in the landing probabilities, and validating the revised navigation procedures through demonstration and use of the revised navigation procedure model on a computer-based flight simulation program. ## Claims ### Claim 1 A computer system for valuation and simulation of revised navigation procedures, said computer system comprising: at least one database comprising required navigation performance data relating to flight operations and customer airline operation; a modeling program, said modeling program configured to build an aerospace value model from said at least one database of required navigation performance data; a software program configured to: utilize the aerospace value model to generate at least one revised navigation procedure, and at least one cost savings item associated with the revised navigation procedure; and monitor the revised navigation procedure and to alert deviation of the revised navigation procedure from the required navigation performance data; a flight simulation program operable to demonstrate the revised navigation procedure for illustration of the at least one cost savings item; and a user interface configured to display outputs of said flight simulation program. ### Claim 2 (depends on 1) A computer system according to claim 1 wherein said user interface is operable to adjust said software program for specific airline requirements. ### Claim 3 (depends on 1) A computer system according to claim 1 wherein the flight operations include at least one of aircraft takeoff, aircraft landing, and airport throughput. ### Claim 4 (depends on 1) A computer system according to claim 1 wherein said database of required navigation performance data comprises at least one of published minima, published charts, official airline guide (OAG) schedules, navigation databases, and weather data. ### Claim 5 (depends on 1) A computer system according to claim 1 wherein said modeling program is configured to couple required navigation performance data relating to flight operations with customer airline operation data to calculate a minima value. ### Claim 6 (depends on 1) A computer system according to claim 1 wherein said software program is configured to utilize a terminal area route generation and traffic simulation tool to design the at least one revised navigation procedure. ### Claim 7 (depends on 6) A computer system according to claim 6 wherein to determine the at least one cost savings item associated with the revised navigation procedures, said software program is configured to determine at least one of a time and fuel savings associated with the at least one revised navigation procedure. ### Claim 8 (depends on 1) A computer system according to claim 1 wherein said software program is configured to utilize the at least one revised navigation procedure in a total airspace and airport modeling program to calculate additional airport capacity improvements that result from the at least one revised navigation procedure. ### Claim 9 (depends on 8) A computer system according to claim 8 where the capacity improvements are a function of the existing airport arrival and departure schedule and simulated with before and after approaches to measure time and capacity improvements. ### Claim 10 (depends on 1) A computer system according to claim 1 wherein said flight simulation program is operable by a user, through said user interface, to determine and experience changes in crew workload due to the at least one revised navigation procedure. ### Claim 11 (depends on 1) A computer system according to claim 1 wherein said software program is configured to: determine a landing probability for both an existing minimum separation procedure and a minimum separation determined utilizing the revised navigation procedure; and calculate the at least one cost savings based on a probability improvement, the probability improvement being a difference in the landing probabilities. ### Claim 12 (depends on 11) A computer system according to claim 11 wherein said software program is configured to: multiply the probability improvement by a frequency of scheduled landings; and multiply the cost of an irregular landing operation with a number of anticipated irregular landing operations for a given time period based on the landing probability utilizing the revised navigation procedure; and generate a report of cost savings resulting from an implementation of the revised navigation procedure. ### Claim 13 (depends on 12) A computer system according to claim 12 wherein said software program is configured to multiply the product of the probability improvement and frequency of scheduled landings by an outage percentage for an instrument landing system. ### Claim 14 A computer system for valuation and simulation of revised navigation procedures, said computer system comprising: at least one database comprising required navigation performance data relating to flight operations and customer airline operation; a modeling program, said modeling program configured to build an aerospace value model from said at least one database of required navigation performance data; a software program configured to: utilize the aerospace value model to generate at least one revised navigation procedure, and at least one cost savings item associated with the revised navigation procedure; determine a landing probability for both an existing minimum separation procedure and a minimum separation determined utilizing the revised navigation procedure; and calculate the at least one cost savings based on a probability improvement, the probability improvement being a difference in the landing probabilities; a flight simulation program operable to demonstrate the revised navigation procedure for illustration of the at least one cost savings item; and a user interface configured to display outputs of said flight simulation program.