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ELIP · Area Coverage

Washington D.C. metro

DC Metro · 25 nm radius · 1956.3 sq nm · 0.5 nm grid
Area Coverage
36.4%
Inventory Finding · corrected landing record
The FAA-registered view alone shows 35.8% area coverage. 2 unregistered hospital helipads in this metro are absent from the FAA registry, reclaiming 12 sq nm of apparent landing desert. Corrected coverage: 36.4%.
HIFLD-listed, not FAA-registered — real but UNVERIFIED candidates (no FAA record or RiskIndex grade). Amber on the heatmap; each a candidate for Ground Truth verification.
Area Coverage
36.4%
Total Area
1956.3 sq nm
Landing Desert
1244 sq nm
Viable Nodes
57
Land Immediately1.6%
Land ASAP10.8%
Land As Practical23.9%
Landing Desert63.6%
Coverage Heatmap7825 cells · viable landing nodes by RiskIndex tier
57 viable landing nodes in this area. The node-level list — each site's identity, survivability, and audited RiskIndex dossier — and the coverage API are available with ELIP access.
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elip-coverage-1.0 · area = circle r25nm · 0.5nm grid · viability excludes CRITICALReach = fixed distance bands, not aircraft glide-modeled · Vertical Data Group