Apron Markings Signs Handbook Page

| Marking Type | Minimum Line Width | Paint Type | Retroreflectivity (mcd/lux/m²) | | :--- | :--- | :--- | :--- | | Lead-In Line | 15 cm (6 in) | Waterborne epoxy | 150 (white) | | Stop Bar | 30 cm (12 in) | Thermoplastic (preformed) | 200 (white) | | Vehicle Walkway | 10 cm (4 in) | Solvent-based acrylic | 100 (yellow) |

Airport aprons—also known as ramps—are among the most dynamic and congested areas of any airfield. These are the zones where aircraft park, load passengers and cargo, refuel, undergo maintenance, and prepare for departure. With multiple aircraft movements, ground service equipment (GSE) operations, and personnel working in close proximity, the apron demands a sophisticated system of visual communication to ensure safety and operational efficiency. Apron Markings Signs Handbook

For decades, the aprons of the world's airports were a chaotic mix of locally designed markings. Pilots and ground crews, especially those operating internationally, faced a confusing array of different lines and symbols with each new destination. This lack of uniformity increased the risk of ground incursions, collisions, and other incidents. | Marking Type | Minimum Line Width |

Red lines that mark the safe boundary behind a parked aircraft. Ground personnel and vehicles must remain outside this zone when an aircraft’s engines are starting or running to avoid catastrophic jet blast damage. 3. Ground Vehicle Lanes and Pedestrian Routes For decades, the aprons of the world's airports

In Europe, the European Union Aviation Safety Agency (EASA) has established its own regulatory framework through Certification Specifications for Aerodromes Design (CS-ADR-DSN). EASA requirements closely align with ICAO standards while incorporating region-specific provisions.