Effect of LNAV and VNAV equipage on time-based scheduling

Sai Vaddi, Xiaoli Bai, Monish Tandale

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

This paper evaluates the effect of Lateral NAVigation (LNAV) and Vertical NAVigation (NAV) equipage on the performance on time-based scheduling. The paper relies on two companion papers: (i) the first paper develops a high-fidelity simulations model of LNAV + VNAV, and (ii) the second paper develops a realistic spatio-temporally correlated model of wind uncertainty. Two different Monte Carlo simulation frameworks are used to evaluate the effect of LNAV + VNAV equipage on time-based-scheduling. The first Monte Carlo simulation framework is used to evaluate the time-of-arrival uncertainty for flights equipped with LNAV + VNAV capability. This Monte Carlo simulation uses a point-mass simulation model of the aircraft equipped with LNAV + VNAV and flying through spatio-temporally correlated wind uncertainty fields. The second Monte Carlo simulation evaluates the effect of LNAV + VNAV equipage on the performance of time-based scheduling. NASA's Stochastic Terminal Area Scheduling and Simulation (STASS) software is used for time-based scheduling and terminal area traffic simulations. Terminal-area traffic Monte Carlo simulations are conducted for 1.0x, 1.5x, and 2.0x demand ratio at San-Francisco International Airport (SFO), Los Angeles International Airport (LAX), and Dallas Fort Worth International Airport (DFW). Results illustrating the effect of LNAV + VNAV equipage level (0%, 25%, 50%, and 75%) on delay, throughput, and the number of separation violations are presented in the paper.

Original languageEnglish (US)
Title of host publication2013 Aviation Technology, Integration, and Operations Conference
StatePublished - Sep 16 2013
Externally publishedYes
Event2013 Aviation Technology, Integration, and Operations Conference - Los Angeles, CA, United States
Duration: Aug 12 2013Aug 14 2013

Publication series

Name2013 Aviation Technology, Integration, and Operations Conference

Other

Other2013 Aviation Technology, Integration, and Operations Conference
CountryUnited States
CityLos Angeles, CA
Period8/12/138/14/13

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Effect of LNAV and VNAV equipage on time-based scheduling'. Together they form a unique fingerprint.

  • Cite this

    Vaddi, S., Bai, X., & Tandale, M. (2013). Effect of LNAV and VNAV equipage on time-based scheduling. In 2013 Aviation Technology, Integration, and Operations Conference (2013 Aviation Technology, Integration, and Operations Conference).