1. RNAV and RNP Strategy in Japan
ICAO Worldwide Symposium on Performance of the Air Navigation System
Montreal, March 2007
Yoshiki Imawaka
Director for International Policy Coordination
ATS Systems Planning Division
Civil Aviation Bureau, Japan

2. Current RNAV Procedures in Japan
Implemented 50NM lateral and longitudinal separation minima (based on RNP10) over NOPAC and CENPAC since 1998 and 2006, respectively
Established three RNAV routes in 1992
Implemented 60 RNAV routes as of March 2007
Oceanic Airspace
En Route
Established FMS arrival route in Tokyo (Haneda) in 1999
Expanded to five other airports since 2004
Established RNAV (GNSS) approaches with Baro-VNAV at selected airports
Terminal Area
Approaches

3. Background Growing traffic demands Fuel savings and reduce noise
JCAB has predicted that air traffic in Japan will increase by 34 percent from 2005 to 2017
New runways at airports in Asia
Fuel savings and reduce noise
Reduce fuel, reduce emissions and reduce noise
High performance aircraft
Increased number of aircraft equipped with multifunctional FMS and GPS

4. Capacity and Efficiency
Restructuring of ATS routes and airspace
Flexible use of airspace
RNAV
Reduction of separation minima
Procedures
In order to accommodate growing traffic and increase efficiency, new capabilities should be introduced.
New capabilities will employ a combination of procedures and systems, such as a restructuring of ATS routes/airspace, and ATC support tools, which would increase controller capability and reduce workload.
New ATC workstations with controller support tools
Data link (ADS/CPDLC)
GNSS
Systems 52

5. JCAB Initiatives
Developed “RNAV Roadmap for Japan” in April 2005.
Decided on an evolutionary implementation of RNAV procedures in Japan, and to continue working collaboratively with the operators on the implementation.
Established RNAV Implementation Team in October 2005 for implementing RNAV according to the RNAV Roadmap.
JCAB established a Steering Committee and Work Group in 2004
Composed of JCAB, operators, and aviation industry representatives
The purpose was to review the current RNAV procedures, and develop an RNAV implementation plan for Japan

6. International Harmonization
JCAB Study
4. Reviewed procedures currently available and identified procedures to be developed
Certification, Operational Approvals, Design Criteria, ATC Procedures, and Flight Inspection
2. Studied current and forecasted aircraft equipage
3. Studied airspace and infrastructure
1. Reviewed current operations (en route and terminal)
International Harmonization

7. RNAV Routes in Japan Radar Coverage (above 15,000 ft MSL)

8. RNAV Systems & Equipage
　GNSS (GPS, SBAS)
　DME/DME (two DME)
　VOR/DME (single VOR/DME)
　Self-contained navigation system (IRU, INS)
　Combination of above
GPS+DME/DME+IRU
DME/DME+IRU
GPS (without IRU)
Non-RNAV capability
B-747 classic
Surveyed commercial passenger/cargo aircraft registered in Japan

9. Surveyed commercial passenger/cargo aircraft registered in Japan
Know our aircraft
Surveyed commercial passenger/cargo aircraft registered in Japan
* Capable as determined by equipment only. Crew training is not considered

10. RNAV Total System Error
Know our airspace - 1
DME/DME, VOR/DME
RNAV Total System Error
5NM
12,000 MSL
29,000 MSL
DME/DME
2NM

11. RNAV Total System Error
Know our airspace - 2
12,000 MSL
2,000 MSL
8,000 MSL
DME/DME
RNAV Total System Error
1NM

12. RNAV Roadmap Major issues considered Implementation Phase
International Harmonization
Increase capacity; Tokyo 4th Runway and Kansai 2nd Runway
Implementation Phase
: Introduction of internationally harmonized procedures
: Increase capacity and efficient operations
, beyond : Future direction

13. Reduce ATC complexity, Increase capacity, Improve efficiency
RNAV Roadmap - 1
Implement RNAV5 routes as an interim step for radar airspace
Operationally segregate between RNAV flights and VOR flights
Implement RNP2 routes, and expand RNP2 routes to non-radar airspace
Expect to mandate RNP2 above FL290
Reduce ATC complexity, Increase capacity, Improve efficiency
En Route

14. RNAV Roadmap - 2 Terminal Implement RNAV1 SID/STARs for radar airports
Airspace restructure at major airports
Implement RNP1 SID/STARs for non-radar airports
Expect to mandate RNP1 in mid-high density airports
Terminal
By 2009
RNAV will be available at major city pairs in Japan from departure to arrival.
By 2012
RNAV will be available at most of the airports in Japan.

15. RNAV Roadmap - 3 Approaches
Evolutionary implementation of RNAV (GNSS) approaches with Baro-VNAV
Implement RNP AR approaches at airports, where beneficial
Approaches
RNP AR approaches will increase runway access
Increase runway access, Increase safety, Reduce noise

16. Japan Roadmap for RNP

17. Thank you for your attention