Airfield safety is built on precision, visibility, and compliance. Every pilot relies on clear signals and markers to navigate the skies and the ground safely. When a runway is closed for maintenance, construction, or emergency repairs, it must be marked properly to prevent confusion or accidents. Runway closure markers (RCMs) are safeguards that keep pilots, ground crews, and airfield operators aligned on the status of runways.
- Why Runway Closure Markers Are Critical for Airfield Safety
- ICAO Standards for Runway Closure Markers
- Features of the Hali-Brite RCM-D-ICAO
- Choose Hali-Brite for ICAO-Compliant Runway Closure Markers
As global air traffic continues to grow in 2025, the standards for marking closed runways have become more stringent. The International Civil Aviation Organization (ICAO) has updated its requirements to make sure all airports, no matter their size or location, uphold the same level of safety. Let’s explore why runway closure markers matter and what the latest ICAO standards mean for anyone involved in airfield construction or operations.
Why Runway Closure Markers Are Critical for Airfield Safety
Runways are the backbone of any airport, and a closed runway poses a serious hazard if not clearly marked. A runway closure marker ensures pilots can instantly identify when a runway or taxiway is out of service. Without a clear signal, the risks include runway incursions, aborted takeoffs, or even catastrophic collisions.
For pilots in the air, especially during low visibility conditions, a clearly marked closure helps them make the right decisions quickly. On the ground, airfield personnel rely on these markers to direct aircraft safely around work zones or restricted areas. RCMs keep the message clear: the runway is unavailable, so do not use it.
ICAO Standards for Runway Closure Markers
The ICAO has updated its guidance on runway closure markers in Annex 14, Volume 1, Amendment 18. These changes are designed to create a uniform approach to marking closed runways globally and to eliminate guesswork for pilots landing at unfamiliar airfields. Here are the key components of the latest standards you need to know:
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- Placement Requirements
Runway closure marker lights must be placed on the centerline near each end of the runway that’s temporarily closed.
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- Lighting Structure
The lights must form an X-shaped structure and be arranged uniformly in branches, with a minimum of five lights on each branch.
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- Light Type and Operation
The ICAO permits both fixed and mobile lighting units. Fixed units may be “shadowed” or stretched to mimic the elevated form when necessary.
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- Flash Patterns
The lights must emit flashing variable white light when viewed from the direction of approach, flashing one second on and one second off.
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- Fail-Safes
In case of a system failure, runway closure marker lights should automatically revert to a fixed light mode to ensure continuous visibility.
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- Control Options
The lighting system must be controllable either manually by the aerodrome operator or automatically by air traffic control.
Pilots often operate across multiple countries within a single day. Compliance with the ICAO runway closure marker standards ensures that whether a pilot lands in New York, Dubai, or Manila, the visual signals are familiar and reliable. Global uniformity reduces the margin for error and strengthens the safety net for everyone involved.
Features of the Hali-Brite RCM-D-ICAO
If you’re looking for a runway closure marker compliant with the updated ICAO standards, Hali-Brite offers a solution that delivers convenience, durability, and unmatched visibility. Our LED Portable Lighted Runway Closure Marker RCM-D-ICAO is a trusted choice for airports worldwide, designed with features that make it practical for crews and unmistakably clear for pilots.
Visible Up to 25 Miles
Our RCM-D-ICAO uses LED with a bright, lighted X design that can be seen from as far as 25 miles away, so pilots have plenty of time to identify the closed runway and adjust their approach safely. The design mirrors the ICAO standards that prioritize clarity and instant recognition.
Fast Setup
Airports need equipment that saves time during closures. With our RCM-D-ICAO, you only need one person to set it up, and the entire process takes just five minutes. That means less downtime for ground crews and faster response times when unplanned closures occur.
Long Runtime
Our RCM-D-ICAO runs on a reliable diesel engine, giving you more than 140 hours of continuous operation on a single tank. The extended runtime minimizes refueling needs and ensures uninterrupted operation. For additional flexibility, the unit includes external power options.
Safety-Tested
Our RCM-D-ICAO has been tested to withstand winds up to 95 mph, ensuring it stays put even in harsh weather conditions. The trailer is DOT-compliant for easy transport, and the built-in photocell provides automatic night dimming for efficient light management.
Optional Add-Ons
Hali-Brite offers optional features that enhance the functionality of our RCM-D-ICAO, including a 24-hour battery backup, an extended service kit, and a tandem towing configuration. These add-ons provide flexibility depending on the size of your airfield and operational budget.
Choose Hali-Brite for ICAO-Compliant Runway Closure Markers
When safety and compliance are on the line, you need equipment you can trust. Hali-Brite has built a strong reputation for manufacturing reliable, ICAO- and FAA-compliant airfield lighting solutions that are designed, tested, and proudly made in the U.S. Our RCM-D-ICAO provides unmatched visibility, easy setup, and safety-tested performance, making it the dependable equipment for marking closed runways. Contact us today at (218) 454-095 or here to learn more about our products.