eatmp hmi tcas ra draft 11 december 2002
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EATMP HMI TCAS RA DRAFT 11 December 2002

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EATMP HMI TCAS RA DRAFT 11 December 2002. Eurocontrol Human Machine Interface Service [email protected] Principles. TCAS HMI must be consistent with current EATMP HMI. There might be a need to combine some of the TCAS warnings for simplicity.

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eatmp hmi tcas ra draft 11 december 2002
EATMP HMITCAS RADRAFT11 December 2002

Eurocontrol Human Machine Interface Service

[email protected]

principles
Principles

TCAS HMI must be consistent with current EATMP HMI.

There might be a need to combine some of the TCAS warnings for simplicity.

Usefulness of particular warnings must be examined.

Voice prompts are introduced to increase controller’s alertness.

For clarity, TCAS warning examples are shown without STCA or MTCD warnings. Flight levels are shown for illustration purposes only.

voice prompts types
Voice Prompts Types

Voice – alert announced once, female voice

Voice plus – alert announced twice, higher volume, male voice

voice prompts
Voice Prompts

TCAS – “voice plus” announced once immediately after alert is generated, repeated only if RA sense is reversed; suppresses STCA voice announcements for that conflict

STCA – “voice” announced once immediately after STCA is generated, “voice plus” announced after 15 sec., repeated every 15 sec. until clear of conflict

mtcd stca and tcas ra
MTCD, STCA and TCAS RA

TCAS 

BAW362 NS

330

mtcd and tcas ra no stca
MTCD and TCAS RA(no STCA)

TCAS 

BAW362 NS

330

tcas ra alternative solution ra in line o
TCAS RAAlternative solutionRA in Line O

RA 

BAW362 NS

330

Considerations:

  • STCA and TCAS are anagrams - might be confusing under stress
  • For that reason displaying “RA” instead of “TCAS” in line 0 might be better
  • However, “RA” will inconsistent with ATC phraseology (“TCAS descend/climb”)
tcas ra alternative solution no ra type
TCAS RAAlternative solutionNo RA type

RA

BAW362 NS

330

No indication of RA type given

all vsls
All VSLs

TCAS VSL

BAW362 NS

325  330

TCAS - All VSLs:

  • Monitor vertical speed
  • Adjust vertical speed, adjust
  • Maintain vertical speed, maintain
  • Maintain vertical speed, crossing maintain
descend
Descend

TCAS 

BAW362 NS

330

TCAS: Descend, descend

crossing descend
Crossing descend

TCAS X

BAW362 NS

330

TCAS: Descend, crossing descend…

Consideration:

Controllers may associate the word crossing with crossing tracks.

climb
Climb

TCAS 

BAW362 NS

330

TCAS: Climb, climb

crossing climb
Crossing climb

TCAS X

BAW362 NS

330

TCAS: Climb, crossing climb…

Consideration:

Controllers may associate the word crossing with crossing tracks.

increase descend
Increase descend

TCAS 

BAW362 NS

324  330

TCAS: Increase descend, increase descend

increase climb
Increase climb

TCAS  

BAW362 NS

335  330

TCAS: Increase climb, increase climb

descend now reverse sense ra
Descend NOW(reverse sense RA)

TCAS

BAW362 NS

335  330

TCAS: Descend, descend NOW

descend now reverse sense ra alternative solution different icon
Descend NOW(reverse sense RA)Alternative Solution - different icon

BAW362 NS

335  330

TCAS ()

TCAS: Descend, descend NOW

Alternative solution - if the icon on the previous slide cannot be implemented.

climb now reverse sense ra
Climb NOW(reverse sense RA)

TCAS

BAW362 NS

324  330

TCAS: Climb, climb NOW

climb now reverse sense ra alternative solution different icon
Climb NOW(reverse sense RA)Alternative Solution - different icon

TCAS ()  BAW362 NS

324  330

TCAS: Climb, climb NOW

Alternative solution - if the icon on the previous slide cannot be implemented.

intruder with no tcas
Intruder with no TCAS

TCAS NO RA

LOT467 NS

330

TCAS 

BAW362 NS

330

Intruder with no TCAS, no RA generated or TCAS in TA mode only

Consideration:

Controllers have no means knowing which aircraft are not TCAS equipped or TCAS in-op.

clear of conflict
Clear of Conflict

TCAS CLEAR

BAW362 NS

330

TCAS: Clear of conflict

alert window
Alert Window

TCAS LOT282  SAS751 

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