Airport Runways & Infrastructure
3 items
Runway threshold markings and stripe count formulas, PAPI/VASI visual glide path arrays, and international airfield lighting color standards.
Items (3)
ComparePAPI & VASI Lighting
4 specs
The Precision Approach Path Indicator (PAPI) and Visual Approach Slope Indicator (VASI) provide visual glide slope guidance on final approach using color-transition optical lenses: 4 White (Too High), 2 Red / 2 White (On 3.0° Slope), and 4 Red (Too Low).
Runway & Taxiway Lighting
6 specs
Airfield lighting follows strict international color codes to prevent runway incursions: Runway Edge (White / Amber), Runway Threshold (Green), Runway End (Red), Taxiway Edge (Blue), and Taxiway Centerline (Green).
Runway Threshold Markings
4 specs
Runway designations reflect their magnetic azimuth heading divided by 10 (e.g., 094° rightarrow Runway 09, 274° rightarrow Runway 27), while the number of longitudinal threshold stripes (piano keys) strictly indicates the runway width.