# Presentation: 264319

## CTAS

**Collaborative Arrival Planning (CAP)**
** ****CTAS ZFW/DFW Digital Data to Industry**
**Greg Carr**
**NASA Ames Research Center**
**Moffett Field, CA**
**650 604-2545**
**gcarr@mail.arc.nasa.gov**
***Presented at the ATA/FAA CDM Meeting***
***Memphis, TN***
***December 15, 1999***

## Collaborative Arrival Planning (CAP)

_***Objective***_
**Improve the efficiency of air carrier operations and increase NAS flexibility.**
_***Components***_
**Information sharing between ATC and air carriers.**
**Air carrier / ATC collaborative decision-support tools.**

**Airline Operational Control Center**

**Airline Ramp Tower**

## Information Sharing

**Information Sharing**

** ****CAP displays a specialized, filtered “repeater” of the operational FAA CTAS TMA system at ZFW.**
** ****CTAS information**
** ****Accurate arrival time estimates**
** ****Metering delays**
** ****Arrival sequence**
** ****Center/TRACON/Airport information**
** ****Airport acceptance rate (AAR)**
** ****Runway configuration**
** ****ARTS runway assignments**

## Improved Arrival Time Prediction

**Improved Arrival Time Prediction**

## CAP operating at American Airlines’  DFW System Operational Control Center since April, 1998

**CAP operating at American Airlines’  DFW System Operational Control Center since April, 1998**

**Enables dispatchers to make better hold/go decisions during periods of extended airborne holding.**
**Supports strategic fleet planning decisions.**

## Enables better decisions whether or not to hold flights to make passenger connections.
Allows more effective management of ground resources (e.g., gates, baggage-handling, catering, maintenance.) 

**Enables better decisions whether or not to hold flights to make passenger connections.**
**Allows more effective management of ground resources (e.g., gates, baggage-handling, catering, maintenance.)**** **

**CAP operating at Delta Air Lines’ DFW Airport Coordination Center since August, 1999**

## CTAS Digital Data to Industry

**CAP****Server**

** ****Digital data generated on NASA/FAA CTAS TMA system at ZFW.**
** ****Sent to Volpe Center over dedicated T1 line.**
** ****Volpe filters CTAS data.**
** ****Digital data sent from Volpe to air carriers via CDMnet.**

## CTAS Data Content

**Category I: Per-flight Data**
** ****Message Timestamp**
** ****Aircraft Identifiers**
** ****Aircraft ZFW Center ID**
** ****TRACON Host Name and Aircraft TRACON ID**
** ****Aircraft call sign**
** ****Aircraft CTAS (TMA) Estimated Time of Arrival (ETA)**
** ****Aircraft CTAS (TMA) ETA to metering fix**
** ****Aircraft CTAS (TMA) ETA to runway threshold**
** ****Aircraft CTAS (TMA ) Scheduled Time of Arrival (STA)**
** ****Aircraft CTAS (TMA) STA to metering fix**
** ****Aircraft CTAS (TMA) STA to runway threshold**
** ****Aircraft ARTS “scratchpad” runway assignment**
** ****Aircraft 3-d position and speed data**
** ****Latitude**
** ****Longitude**
** ****Altitude**
** ****Flight plan route**

## CTAS Data Content

**Category II: Airport Data**
** ****Airport Configuration**
** ****Airport name**
** ****Flight rule (VFR/IFR)**
** ****Available runways**
** ****Metering State (ZFW)**
** ****Airport Acceptance Rate**

## CTAS Digital Data to Industry

** ****Data will only be provided in digital format.**
** ****NASA/FAA/Volpe will NOT provide new display tools.**
** ****Air carriers will “subscribe” to Volpe for CTAS data.**
** ****Socket connection similar to SMA digital data.**
** ****Interface Control Document (ICD)**
** ****Data format/content.**
** ****HW/SW requirements for connection.**
** ****FAA/Air Carrier MOA will govern use of digital CTAS data.**
** ****Carriers must sign MOA to have access to digital CTAS data.**
** ****Schedule**
** ****CTAS digital data available ~ Summer 00.**

## CTAS Digital Data to Industry

** ****Points of Contact**
** ****NASA**
** ****Greg Carr (Ames)****	****	****	****650 604-2545**
** ****Shawn Engelland (NTX) ****	****817 858-7634**
** ****Volpe**
** ****Len Kurzweil ****	****	****	****617 494-2238**
** ****Rick Oiesen ****	****	****	****617 494-2309**