The Air Transport industry has changed in a significant manner over the past decades. The traffic volume have grown in such a way that certain parts of the world are already facing capacity shortages. The traffic is expected to more then double over the next 15 years according to ICAO and IATA.
These changes were dictated by a combination of other factors, mainly operational and financial, following a succession of crisis and economic downturns. The airline industry is increasingly sensitive to the cost of operating aircraft. Air carriers demand direct routes, flight level optimization, efficiency in-flight, improved en-route fuel consumption, and better safety.
The Aviation Community has been developing for 2 decades new concepts and technologies to provide the industry with tools that will allow it to continue growing, whilst maintaining high standards of safety.
As resolved in ICAO's 2007 General Assembly, 2009 is a crucial year in the process of implementing such systems, also called CNS/ATM. The States and Planning and Implementation Regional Groups (PIRGs) were urged in 2007 to complete a PBN (Performance Based Navigation) implementation process by the end of this year.
PBN is a set of concepts supported by brand new technologies that will increase global air transport system's efficiency, capacity, effectiveness and safety. They will also help to reduce air travellers' carbon footprint. These are basically, Area Navigation (RNAV), Required Navigation Performance (RNP), Approach procedures with Vertical Guidance (APV, GNSS), and Reduced Minimum Vertical separation (RMVS).
Modern aircraft are normally fitted or retrofitted with required systems. Airlines, opposed in the first place to what they feared to be costly upgrades imposed by the regulators based on unreliable Cost Benefit analysis, are now egger and certain to draw consistent benefit from the new concepts and systems.
States are required to have implemented 30 per cent of the systems by 2010, 70 per cent by 2014 and 100 per cent by 2016. Despite a recent setback in the FAA's nextGen trials program, experts believe that major states will meet the deadlines. Even ASECNA CNS/ATM program is well advanced, with the implementation of Secondary radars, ADS-B ADS-C, CPDLC, RNAV and RMVS systems and concepts over its airspace. This is a vital question for the industry, if it wants to continue to grow safely.
Source: MSc Thesis Cranfield; ICAO Journal, n° 4, 2009