Demand Data Repository (DDR)
| DDR2 web portal : What's new | |
| Upcoming releases in 2018 |
Release 2.9.6 is planned for July /August 2018. It will consist mainly in updating the current system managing user’s account with a new one, DB based, and implementing many more features associated with users rights and information Release 2.9.7 is planned for December 2018. It will mainly focus on communication between local tools and DDR2 users account in order to implement proper access restriction. |
The objective: provide the most accurate picture of pan-European air traffic demand, past and future, from several years ahead until the day before operations. It can be used to support the Network Collaborative Planning Process: strategic, seasonal and pre-tactical planning as well as for the planning of special events or major ATM evolution projects.
The DDR project was developed in two phases, DDR1 and DDR2.
DDR1 produced future traffic samples, mainly using historical traffic samples adjusted with STATFOR forecast data and the FIPS (Flight Increase Process). It is currently being phased out.
DDR2, now promoted as the DDR service, covers DDR1 functionalities and also collects early available flight intentions from airlines (SSIM/INNOVATA data) and from coordinated airports through the European Union Airport Coordinators Association (EUACA).
Collected flight intentions are used to enrich historical traffic demand and to improve the accuracy of traffic demand forecasts.
The DDR service supports efficient network operations planning. It also provides a refined analysis of past demand to facilitate post-operations analysis and to identify best practices for future operations.
Beneficiaries
The DDR service addresses the needs of a wide range of users:
- Network Manager (Central / FAB / Local): to develop the rolling Network Operation Plan (e.g. Route and Airspace design; strategic, seasonal and pre-tactical demand and capacity balancing; the planning of special events;
- ANSPs: to prepare and optimise their capacity plans;
- Airlines: to detect flight efficiency improvement opportunities, through the visualisation and comparison of flight plan trajectories for any period of time in the past;
- ASM actors: for airspace management and coordination processes for available airspace;
- Airports: to integrate their local plans with the Network Operations Plan.
The table below outlines the differences between DDR1 and DDR2
| DDR1 | DDR2 | |
| Day Definition (historical traffic) |
The traffic sample for a specific day contains the flights departing on that day. - No flight is duplicated from one day to the other - Airspace load calculated with such traffic will not be accurate at the beginning of the day (some flights departing the day before will be missing). |
The traffic sample for a specific day contains all flights flying within an enlarged ECAC area, during the day. - Flights passing midnight in the large ECAC area will be counted twice in two consecutive days.- Airspace load will be accurate |
| 4D Trajectory (historical traffic) | 4D trajectory is simplified, keeping only a minimum of special points (Top of climb, Start of descent...) | 4D trajectory is more accurate as all meaningful special points are kept |
| Number of flights (historical traffic) | All flights having actually taken off are kept | All flights having a last filled flight plan set to "accepted" are kept. So, some cancelled flights will be present. |
| Traffic forecast | Traffic forecast is only based on STATFOR predictions and the FIPS process. | Forecast accuracy is improved as it incorporates consolidated flight intentions data, mixed with STATFOR predictions, from day of operation till several years ahead. |
| Airline Trajectories | NA | New Feature – Historical routes of flights within Europe can be compared and analysed |
How to access
For more information on how to register, additional reference documentation and contacts,consult the NM Service Catalogue page on DDR.
DDR2 web portal: Release Notes
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2.9.5 13 February 2018 |
Release of version 2.9.5 of DDR2. This release contains:
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2.9.4 21 August 2017 |
Release of version 2.9.4 of DDR - Main improvements:
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2.9.3 1 March 2017 |
Release of version 2.9.3 of DDR. This version contains a certain number of bugs fixes:
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2.9.2 23 January 2017 |
Release of version 2.9.2 of DDR. Main improvements:
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2.9.1 17 June 2016 |
New release (version 2.9.1) of DDR. Main improvements:
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2.8.10 |
Suppress “VST” name for dataset; |
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2.8.9 |
Update to NMOC version 19.0; |
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2.8.8 |
Start DCT integration; |