
Researchers at Purdue University’s Polytechnic Institute are demonstrating a low-cost, solar-powered runway status light system that identifies aircraft near or on runways using computer vision and ADS-B signals. Called Simple, Affordable, Flexible, and Expandable Runway Status Lights (SAFE-RWSL), the system detects landing traffic and aircraft on a runway and illuminates lights at the taxiway entrance to the runway to warn pilots and airport personnel not to enter the runway.
Purdue said SAFE-RWSL is ideally suited for smaller airports because its projected cost is far less than the tens of millions of dollars needed for radar-based runway surveillance systems. “Based on the performed study, the use of simplified runway status lights is expected to be effective at reducing runway incursion risk in nontowered, no-traffic environments when a conflicting aircraft is difficult to see,” said Luigi Dy, a doctoral student at Purdue University’s School of Aviation and Transportation Technology.