lCAO CIRCULAR 278-n 64 CIRCULAR NATIONAL PLAN FOR CNSIATM SYSTEMS GUIDANCE MATERIAL Approved by the Secretary General and published under his authority INTERNATIONAL CIVIL AVIATION ORGANIZATION MONTREALCANADA
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FOREWORD Following comprehensive studies over several years, the communications, navigation and surveillancelair traffic management CNSIATM systems concept was endorsed by the Tenth Air Navigation Conference in 1991 and by the 29th Session of the ICAO Assembly in 1992. Planning for successful implementation of CNSIATM systems is necessitated by the large and complex nature of the undertaking and the multidisciplinary roles of the partners involved. Planning takes place mainly at three levels global, regional and national. To progress with the planning, ICAO first determined the requirements for facilities and services to serve the international civil aviation community at the global level in the form of a global plan. The Global Co-ordinated Plan for Transition to the ICAO CNS/ATM Systems was initially developed by the fourth meeting of the Special Committee for the Monitoring and Co-ordination of Development and Transition Planning for the Future Air Navigation System FANS Phase 11 in 1993. The Global Plan has now been revised and published as the Global Air Navigation Plan for CNS/ATM Systems and was presented to the World-wide CNSIATM Systems Implementation Conference Rio de Janeiro, 11-15 May 1998. Regional planning is the principal engine of ICAO planning and implementation work. It is here that the top-down approach comprising global guidance and regional harmonization measures converges with the bottom-up approach constituted by States and aircraft operators. While ICAO addresses planning strategy at the global and regional levels, planning at the national level is the responsibility of each State. However, in response to a request by a number of States for more information concerning the planning and implementation of CNSIATM systems, this guidance material in the form of a Model National CNS/ATM Systems Plan has been developed. This circular is intended to assist States in structuring, formulating, amending and enhancing their individual plans for the transition to CNSIATM systems. At the same time, those States that have completed their respective national CNSIATM systems plans can validate their findings by adopting the approach. This guidance material, in addressing shortcomings of the current systems, identifies functional requirements in the short term suggesting enhancements to current systems as well as in the long term suggesting implementation of the new systems. National planning guidance as contained in this circular, while being useful to States for planning for both domestic and international operations, requires coordination and harmonization with planning in adjacent States so that the implementation of facilities and services can be accomplished in line with the regional plan. While describing the techniques and requirements of various systems configurations that can be implemented at the national level, this guidance material is not intended to indicate preference for any particular system configuration. The choice of a system configuration will depend on a variety of circumstances and requirements, such as type of airspace, density of air traffic and cost-effectiveness. The planning decision will therefore require the study of operational requirements, technical suitability and economic analyses. The guidance material presented in this circular is consistent with, and complementary to, the Global Air Navigation Plan for CNS/ATM Systems Doc 9750. For guidance on the application of CNSIATM systems in relation to meteorology, aeronautical information services, organizational and international
ii Circular 278-AN/164 cooperative aspects, financial aspects, legal issues, training and technical cooperation - which are not specifically addressed in this circular -- the reader is referred to the Global Air Navigation Plan for CNS/ATM Systems. The costhenefit guidance material in this circular is based on the Economics of Satellite-based Air Navigation Services - Guidelines for costhenefit analysis of communications, navigation and surveillance/air trafJic management CNS/ATAI systems Circular 257. Formatted spreadsheets using Wordperfect and Excel software to apply the approach used in this Circular 278 covering technical analysis and costbenefit analysis are available on diskette from the ICAO Secretariat on request. It should be noted that, in order to make the software as user-friendly as possible, several simplifications in assumptions and input of data have been made. The software developed for this Circular is intended to give Stateslproviders and users a quick view of the economic potential of the CNSIATM systems, as well as to allow ready comparisons of different implementation options. Wherever there is a need for a more comprehensive analysis, the software referred to in the foreword to Circular 257 should be applied. That software is also available from the ICAO Secretariat. The guidance material includes a glossary that provides brief explanations of the common technical terms and acronyms. These explanations should be viewed as an aid to the general understanding of the reader and are not necessarily officially endorsed by ICAO. Users are invited to express their views and offer comments and suggestions for improvements or additions based on their practical experience when using this guidance material for national planning for CNSIATM systems. These should be directed to the Secretary General of ICAO.