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MIT ICAT ADS-B Survey

Background

Pilot rating:

Total hours (estimate):

Do you hold an instrument rating? Yes No

Do you own your own aircraft? Yes No

What type of aircraft do you primarily fly?

What is your primary type of operation?

If you participate in more than one type of operation, please choose your primary type, and answer the rest of the survey with regards to that type.

Home base (ICAO identifier, if known):

Region(s) where your aircraft(s) operate: (select up to 3)

What percent of your flight time is in areas outside of ATC radar coverage?
%

In what location, outside of ATC radar coverage, do you operate in the most?


ADS-B Applications

ADS-B Diagram [1]

ADS-B (Automatic Dependent Surveillance - Broadcast) is a surveillance technology where each aircraft broadcasts its altitude, heading, GPS-driven position, and other information to ground stations and to other aircraft. This broadcast data, represented by the green lines above, is known as ADS-B Out information. Ground stations will receive the ADS-B Out aircraft information for display on air traffic controllers' screens. Because the ground stations are less expensive than existing radar installations, they can be installed in more locations giving controllers radar-like coverage and control in non-radar environments.

Other equiped aircraft will receive the aircraft information for in cockpit traffic displays. Receiving and displaying ADS-B information in the cockpit is known as ADS-B In. Additionally, ground stations are able to uplink data such as weather and airspace information to aircraft using the ADS-B link.

Assuming that all the necessary infrastructure were in place and your aircraft is equipped, please consider the following applications of ADS-B technology and rank the potential benefits of the application to your operations. For each application, please select from the following scale considering financial, efficiency, safety, and other operational benefits to you or your organization:

  • N/A: not applicable to your type of operation
  • No benefits: application would not lower expenses, increase efficiency, or increase safety
  • Some benefits: application would marginally lower expenses, increase efficiency, or increase safety
  • Significant benefits: application would considerably lower expenses, increse efficiency, or increase safety


Non-Radar Airspace "ADS-B Out" Applications

The first set of applications relate to ADS-B Out technology where each aircraft broadcasts its position, altitude, airspeed, trend information, and aircraft ID to ground stations in areas where there is no existing ATC radar coverage (at low altitudes and in mountainous, remote, and over water areas). This data is fed to ATC to produce radar-like displays of traffic information for controllers and other interested parties.

Application N/A No benefits Some benefits Significant benefits
Operation Center/Company/Online flight tracking of aircraft in the non-radar environment based on ATC data feed
Radar-like IFR separation in the non-radar enroute environment
Increased VFR flight following coverage outside of radar coverage
Increased airport surface awareness from the air traffic control tower
Increased final approach and runway occupancy awareness from the air traffic control tower

Radar Airspace "ADS-B Out" Applications

The second set of applications derive from the fact that the ADS-B Out information from each aircraft sent to air traffic controllers is better than existing radar-based information in existing radar airspace. ADS-B has a faster update rate, more accurate position reporting, heading, and velocity as well as aircraft ID.

Application N/A No benefits Some benefits Significant benefits
Better air traffic control traffic flow management of enroute sectors and busy terminal areas
Increased enroute capacity
Improved Operation Center/Company/Online flight tracking in the existing radar environment due to better data
Monitoring of closely space parallel approaches allowing more utilization of parallel runways
Reduced separation standards
More accurate search and rescue response

"ADS-B In" Traffic Display Applications

The third group of ADS-B applications is enabled by ADS-B In technology where the ADS-B Out information described above is received by individual aircraft in addition to ground stations, so that traffic is displayed in the cockpit on a dedicated display, a multifunction display (MFD), or an electronic flight bag (EFB), similar to the notional display below.

ADS-B Traffic Display [2]

Application N/A No benefits Some benefits Significant benefits
Enhanced visual acquisition allowing pilots to identify other aircraft visually in VFR or Marginal VFR conditions
Airport surface surveillance, allowing pilots to view other vehicles operating on the airport surface
Final approach and runway occupancy awareness
Increased ability to maintain visual separation in VFR or Marginal VFR conditions
Merging and spacing to a final approach fix
VFR-like separation standards in all weather conditions
Self-separation or station keeping
In-trail climbs and descents while maintaining separation from a lead aircraft on the same route

"ADS-B In" Data Link Applications

The final set of ADS-B In applications relate to data uplink enabled applications, where data from the ground can be uplinked to the cockpit to a display similar to the notional display below.

ADS-B Datalink Display [3]

Application N/A No benefits Some benefits Significant benefits
Display of real-time weather information in the cockpit
Display of real-time airspace information in the cockpit

Are there any other applications of ADS-B not listed above that could provide benefits?

For General Aviation (GA) owners and operators: If this real-time weather and airspace information was provided for free and given that there was a future mandate, how much would you pay to voluntarily equip prior to the mandate with ADS-B In avionics that would give access to the weather and airspace information, along with a display of nearby traffic?


Aircraft Equipage

Is the aircraft you normally operate currently equipped with a . . . (check all that apply)
IFR Certified GPS?   IFR Certified GPS with WAAS?
Panel Mounted VFR GPS?   Portable GPS?
What GPS model(s)?

Is the aircraft you normally operate currently equipped with a . . . (check all that apply)
Multifunction Display (MFD)?   Electronic Flight Bag (EFB)
What MFD/EFB model(s)?

Is the aircraft you normally operate currently equipped with datalink weather receiver?
Yes No
If yes, what datalink receiver model?

Is the aircraft you normally operate currently equipped with ADS-B Out transponder?
Yes, UAT  Yes, 1090-ES No Don't Know
If yes, what model transponder?


Is there anything you would like to add?

If you would be willing to be contacted to answer follow up questions, please enter your email address (optional):







[1] http://www.ads-b.com/home.htm
[2] Bobby Nichols. "Surveillance and Broadcast Services Program Overview." Presentation to NWAAAE. 3 Oct 2006. Available at http://www.adsb.gov/briefing_nwchapter.htm
[3] ibid

 

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comments and questions to sallyc "at" mit.edu    last updated 5.17.07    
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