Application segmentation allocates PAPI revenue by end‑use scenario, reflecting how airports integrate visual glide‑slope guidance into operations. The primary segment, Runway approach guidance, supplies the majority of installations, delivering real‑time descent angle cues to pilots during final approach; it represents roughly 70 % of market value and is directly linked to runway safety initiatives. A secondary segment, Airport surface movement, leverages PAPI units on taxiways and short runways to assist low‑visibility maneuvering, contributing about 20 % of the market and growing with stricter ground‑visibility regulations. The tertiary segment, Flight training simulators, incorporates PAPI emulation within full‑flight simulators, accounting for the remaining 10 % and expanding as training institutions adopt higher fidelity visual systems. By quantifying these application‑specific shares, analysts can construct a precise pie‑chart for the market taxonomy, enabling targeted investment decisions across the Precision Approach Path Indicator (PAPI) for Airport landscape.