SLIDE 1
OVERVIEW
- NEED FOR CHARTING SYMBOL HIERARCHY
- HISTORY OF U.S. DEVELOPMENT EFFORTS
- CURRENT U.S. CHARTING HIERARCHY
- ICAO PANEL COORDINATION TO DATE
- DISCUSSION
ICAO Operations Panel RNAV / Ground-based Charting Symbol Hierarchy - - PowerPoint PPT Presentation
ICAO Operations Panel RNAV / Ground-based Charting Symbol Hierarchy - - PowerPoint PPT Presentation
ICAO Operations Panel RNAV / Ground-based Charting Symbol Hierarchy OVERVIEW NEED FOR CHARTING SYMBOL HIERARCHY HISTORY OF U.S. DEVELOPMENT EFFORTS CURRENT U.S. CHARTING HIERARCHY ICAO PANEL COORDINATION TO DATE
SLIDE 2
SLIDE 3
NEED FOR CHARTING SYMBOL HIERARCHY
- Uses standard symbols on all charts to distinguish fixes
- riginally defined using ground-based NAVAIDs
- Harmonizes paper chart and electronic symbols
- Shows non-RNAV capable aircraft the fixes they can
define with ground-based NAVAIDs
- Provides greater utility and flexibility for Air Traffic
Control, especially in the enroute environment
SLIDE 4
HISTORY of U.S. DEVELOPMENT EFFORTS
- Aeronautical Charting Forum (RNAV Transition
Group) began study in 2001
- ALPA, FedEx pilot unions endorse new chart
symbols
- RNAV Transition Group presents Charting
Hierarchy to Aeronautical Charting Forum (2002)
- U.S. government and industry charting agencies
adopt symbology on charts in (month? 2002?)
SLIDE 5
Current U.S. Charting Hierarchy
- Triangle = Fix
- NAVAID = NAVAID symbol
- 4-pointed STAR = RNAV
waypoint
- Open = “on request” reporting
point
- Filled = “compulsory” reporting
point
- Circle = Fly-over
- No circle = Fly-by
- No nested symbols (unlike
current use in Annex 4)
SLIDE 6
Example Departure Chart (U.S.)
SLIDE 7
Same Example Chart (Annex 4)
SLIDE 8
ICAO Panel Coordination
- Working paper presented to OCP and discussed
extensively
– OCP-13 recommended review by multidisciplinary group
- ANC agreed and Secretariat referred paper to
AISMAPSG
- Working paper presented to AISMAPSG
– AISMAPSG did not review in detail because it felt OPSP should review first and make recommendation
- Working paper prepared for OPSP WHL-3
SLIDE 9
DISCUSSION
- Working paper recommends changes to Annex 4 for
enroute and instrument procedure chart symbols
- Paper also recommends use of hierarchy to identify
ground-based fixes and NAVAIDs without use of waypoint symbol
- OCP and AISMAPSG awaiting recommendation of
OPSP on use of charting hierarchy
SLIDE 10
ICAO Operations Panel RNAV / Ground-based Charting Symbol Hierarchy
SLIDE 11
Recommended Electronic Symbols
- Society of Automotive Engineers (SAE ARP
5289) recommended electronic symbols: – Triangle for an intersection – Four-pointed star for a waypoint – No specific symbol for “reporting point.”
- RTCA SC-181 adopted SAE electronic symbol