International Civil Aviation Organization

World-wide CNS/ATM Systems

Implementation Conference

Rio de Janeiro, 11 – 15 May 1998

WW/IMP–WP/75

10/5/98

Item 1

Agenda Item 1:	Overview of CNS/ATM Systems Implementation

PRESENT ACTIONS FOR THE BRAZILIAN CNS/ATM IMPLEMENTATION

(Presented by Brazil)

Information Paper

SUMMARY

This information paper describes the Brazilian action concerning the CNS/ATM implementation in its territory, as well as its politic and strategy for the transition period from the present systems to the forthcoming ones.

1.	Present Situation

1.1	Developed from a postwar concept, the present system of air navigation has been able to support the world-wide air circulation (world traffic) regularly and safely, according to the Chicago Convention. However, due to the restrictions determined by the technical characteristics of the equipment and the capacity to face the world air traffic, the community of the international civil aviation is aware of the need for the forthcoming CNS/ATM implementation system, conceived by ICAO and endorsed by the States member during the 10th World-Wide Conference on the Air Navigation.

2.	Transition

2.1	Since this new concept was approved and endorsed, the actors shall fulfill the principles of the International Convention and Agreement. Therefore, ICAO has developed the SARPS concerning the new systems with the participation of the States and the international organizations related to the international civil aviation. In parallel, the regional planning groups have been working in the regional planning and the States, in the national planning.

2.2	The transition process is on course, however certain legal and institutional aspects need a better definition with reference to attributions, proficiency and States responsibility, in matters such as property, control and operation of global elements of CNS/ATM Systems.

2.3	On the other hand, it is understood that there will be a transition period between the present and the new CNS/ATM System when it will be necessary to proceed with the planning and implementation of actual systems, in parallel with the implementation of the new ones. It is the case of Brazil, who will be investing strongly in the implementation and maintenance of conventional systems and at the same time introduction of the means to support the future system.

2.4	In order to face this challenge, Brazil conceived its Politic and Strategy for the CNS/ATM Systems Implementation and Operation, approved by the Ministry of Aeronautics in 1994, reaffirming the historical compromise to continue participating in the efforts of ICAO to develop Civil Aviation and contribute for the improvement of the infrastructure of the World Air Navigation.

3.	Politic

3.1	The politic of certain aspects need a special accent:

a)	The CNS/ATM implementation will be fully supported by Brazil, with emphasis on the establishment of global systems, allowing the country to have a better level of control, with acceptable costs;

b)	The new systems should not infringe or restrain the Brazilian sovereignty, authority and responsibility in matter of air navigation control and the rules settlement and accomplishment; and

c)	The new systems should have an universal accessibility, without discrimination.

4.	Strategy

4.1	Certain aspects that need to be outlined in this strategy

a)	Give total support to ICAO, following the Chicago Convention;

b)	Promote and participate of consultancies and technical cooperation with the States using and furnishing the new systems;

c)	Establish, as basic parameters for evaluation of offered services throughout the new systems, the air traffic safety and the economic principle;

d)	Support the settlement of the Global Navigation System by Satellite (GNSS), in all international forum;

e)	Use the existing systems of satellite navigation, not yet recognized as GNSS, in a transitory and supplemental form; and

f)	Take part of the provision of the additional means of global navigation and telecommunication systems, aiming to assure the accuracy of its operation and the control of its use in Brazilian FIR.

5.	RESULTING ACTIONS

5.1	In accordance with the approved strategy, following attitudes and activities have been adopted, aiming the transition and implementation of the forthcoming CNS/ATM system:

5.1.1	TELECOMMUNICATIONS

5.1.1.1	DATACOM System, compatible and interlinked with AIRCOM of SITA, in process and allowing operational and administrative communication of the airlines. At the moment, this system is being tested in order to enlarge its capacity which allowing the interchange of MET and ATS messages, as required by Aeronautical Mobile Services.

5.1.1.2	TELESAT System, in order to supply the needs of Aeronautical Fixed Services, through V-SAT stations. The first phase is operating, and the net conclusion is expected in 1999, when all facilities integrating the Brazilian Air Space Control System (SISCEAB) will be interlinked.

5.1.1.3	Adaptation of both nets to ATN requirements, still in embryonic phase.

5.1.2	NAVIGATION

5.1.2.1	In order to feel the immediate benefits of the satellite navigation, the Operational Concept of the Global Navigation by Satellite System (GNSS-T). This concept sets up the basis to the transition to GNSS, the implantation of augmentation modes, not only for large areas (Satellite Based Augmentation System) by also for local ones (Ground Based Augmentation System) and the program of aids de-activating for conventional air navigation. It is important to distinguish that those actions are conditioned to the requirements established by the Politic and Strategy adopted.

5.1.2.2	Throughout AIC 03/95, the GPS was recognized as a supplementary mean of air navigation.

5.1.2.3	Certification of the non-precision procedures based on GPS for 14 airdromes at the south of the country. For this purpose, it was signed an agreement between the Directory of the Electronic and Flight Protection (DEPV) and Rio Sul, regional airline which concentrates its operation at the south of the country.

5.1.2.4	Evaluate for certification of a GPS local station differential. Therefore, a aircraft for flight inspection was duly approved, in cooperation program between EMBRAER and HONEYWELL.

5.1.2.5	Change the Brazilian aeronautical charts to the world-wide geodesic system (WGS84), concluded in January of 1998.

5.1.2.6	Revision of the planning of conventional aids implementation, in order to give priority to them in the short term investments. This resolution targets the prompt attendance of customer's needs and the best use of life's equipment, taking into acount the conditional program of conventional aids de- activating.

5.1.3	SURVEILLANCE

This function will be achieved through Automatic Dependant Surveillance (ADS) and by primary/secondary radar net, which will be enlarged in order to provide coverage to all Brazilian air space until year 2002 (See Annex 2). This decision works to achieve an adequate grade of control and air traffic safety, considering the great quantity of small aircraft existing in Brazil, which re-furnishing would be impossible, and the imperative need of having a reliable back-up in case of ADS failures.

5.1.4	AIR TRAFFIC MANAGEMENT

5.1.4.1	The data processing systems of the Air Control Centers (ACC) in Brasília, Curitiba and Recife will be remodelled, with the purpose of supplying the requisites to the evolution of the air traffic management. The automated ACC in Belém, Manaus and Porto Velho, to be implemented, shall supply the same requirements.

5.1.4.2	The Air Traffic Flow Management Center (ATFM), being developed by the Flight Protection Institute (IPV), is in provisional operation and it is being effective in time and/or situations when air traffic is too heavy, when conventional standards of control generate congestion and increases working charge of professionals.

6.	HUMAN RESOURCES CAPABILITY

6.1	The new systems, using advanced technology and making important changes to the operational model, will require high qualified staff. Therefore, taking this into acount, starting at a management level to an executing level, are being held specific courses and seminars targeting information, stimulating the technical and operational interchange with other countries.

6.2	The projects implementation, such as TELESAT, DATACOM, ATFM and the modernization of ACC data processing centers is being used for the preparation of operational and technical staff, in view of the forthcoming new systems.

7.	CONCLUSION

7.1	Although the new CNS/ATM system is being conceived to be used around year 2010, some of its elements are available for immediate use. This will help to overcome the present system restrictions. As described in this information paper, the Brazilian Aeronautical Administration has been working in order to solve these issues and presents them to the attendants for their appreciation.