These are frequently asked questions about the TFMS TFMData Service. The questions are grouped by the categories shown below. Click on a question to view the answer.
TFMData Service – General
The TFMData Service is a Traffic Flow Management System (TFMS)
service that provides TFM data to internal and external users via the National
Airspace System (NAS) Enterprise Messaging Service (NEMS) Enterprise Service
The TFMData Service JMSDD and XSD documentation can be obtained from the NSRR.
To access the TFMData Service documentation from NSRR 2.0:
- Login to NSRR 2.0 at https://nsrr.faa.gov
(If you don’t already have NSRR 2.0 access, new accounts can be requested here)
- In the “SEARCH” pulldown, select “SEARCH DOCUMENTS”
- Enter the following search terms, and then click “Search”:
+tfmdata +schema -outdated
- In the Results list, click on the desired document to view or save:
- For R13: TFMDataService-v2.0.5.zip
- For R10: TFMDataService-v1.9.zip
Note: The zip file contains all TFMData Service documents (JMSDD/WSDD and XSD)
TFMData Service – Request/Reply
For a detailed example of the TOS message in TFMData format, see Example Trajectory Option Set (TOS) Request to TFMS via Request/Reply..
Monitoring airport demand can be accomplished using the TFMData Service TFMSRequestReply function to generate a flight list. Subsequent to the reply, the flight list can be dynamically maintained using the Flow Information function. Click here for details on airport monitoring.
Where can examples of Flight Data, Simplified Substitution and Early Intent Packets in TFMData format be found?
For Flight Data packets in TFMData format, see Example Flight Data (FD) block requests to TFMS via Request/Reply.
For Simplified Substitution packets in TFMData format, see Example Simplified Substitution (SS) block requests to TFMS via Request/Reply .
For Early Intent packets in TFMData format, see Example Early Intent (EI) requests to TFMS via Request/Reply .
Submitting Terminal Flight Data to TFMS can be accomplished using the TFMData Service TFMSRequestReply function, see Submitting Terminal Flight Data to TFMS via Request/Reply.
TFMData Service provides the capability to request the definition and flight list for a specific TMI via the Request/Reply message as detailed in Request TMI Definition/Flight List via Request/Reply
TFMData Service provides the capability to request a complete list of TMIs via the Request/Reply message as detailed in Request Current Traffic Management Initiatives (TMIs) in TFMS
TFMData Service – Flight Data
TFMS publishes all Flight Data to NEMS in real time with no delay. Any delay in the published data is a function of your subscription with NEMS to consume the data.
TFMData Service – Flow Information
The Flow Information feed contains primarily information regarding TFMS Traffic Management Initiatives(TMIs). The TMIs include FXAs,
Reroutes, Ground Stops, Ground Delay Programs and CTOPs and more. The information about these TMIs includes the initial TMI
definition, any subsequent modifications and the flight data for the TMI. See Example Flow Information Data Feed Messages
for detailed examples.