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RVR History & Initiatives

RVR History & Initiatives. CDM WG MEETING JUNE 28, 2000 Miro Lehky. History . Pre ASOS (The Good’Ole Days) RVR Provided In Remarks of SA Manually NWS Sites Only 40% Total RVR Sites Utilized Rolling Drum Readout Provided For a Single Designated Runway. History.

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RVR History & Initiatives

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  1. RVR History & Initiatives CDM WG MEETING JUNE 28, 2000 Miro Lehky CDM Meeting

  2. History • Pre ASOS (The Good’Ole Days) • RVR Provided In Remarks of SA Manually • NWS Sites Only • 40% Total RVR Sites • Utilized Rolling Drum Readout • Provided For a Single Designated Runway CDM Meeting

  3. History • Post ASOS (Oh the Joy of Automation) • ASOS - RVR Interface Not Provided • Historical RVR Site List Developed • Initial List 114 / Final List 119 • Provide Equivalent Level of Service • Initially Manual • Automation Developed • Service Levels A, B, C, and D Developed CDM Meeting

  4. RVR Issues • US vs. ICAO Standards • US Only Provides RVR At Historical Sites • RVR Operational Usage's • Loss of Real-Time RVR at Select Locations CDM Meeting

  5. US Standards One Designated Runway TZ Only No Report of Tendency Measure in Feet Light Step 5 10 Minute Avg. 10 Minute Avg. 10 Minute Avg. Body of METAR SPECI at 1 Level (2400) ICAO Standards Up to 4 Runways TZ Only Report Tendency Measure in Meters Light Setting In Use 10 Minute Avg. Report Discontinuities RVR Only After Discontinuity Body of METAR SPECI at 4 Levels Long Line Standards CDM Meeting

  6. Long Line Proposal • ATA Met Committee Proposal (May 21, 1999) • Up to 4 Runways (Per ICAO) • TZ Only (Per ICAO) • Report Tendency (Per ICAO) • Measure in Feet (Per FAA) • Light Step 5 (Per FAA) • 10 Minute Avg. (Per ICAO) • Report Discontinuities (Per ICAO) • RVR Only After Discontinuity (Per ICAO) • Body of METAR (Per ICAO) • SPECI at 4 Levels (600, 1200, 1800, 2400) (Per ICAO/Modified) CDM Meeting

  7. Long Line Deployment • Current • 150 Interface Cards Acquired • Installation Underway • Future • Adapt ICAO Standards • Software Only Mod (ASOS) • Card Mod for 4 Runways (.5 Mil) • Money and Timeline to Be Resolved CDM Meeting

  8. Real-Time RVR • Real Time Feeds WhereAvailable at Some Sites • Local Real-Time RVR Capability Lost With Deployment of NEXGEN RVR • Real-Time RVR Under Development • Presentation to Follow CDM Meeting

  9. Real-Time RVR Usage • Situational Awareness • No FAA Issues / Possible Ops Spec Listing • Basis of Dispatch / Release • Regulatory (GC) Issues Will Prove Challenging • Closed Facility / Commence Approach • FAA Open To Discussion • Comfort With Technology / Procedures • Forecasting / TAFs • Access To RVR Data / Technique Development CDM Meeting

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