SMGCS Solutions: Expertise in Design, Supply & Installation

atg airports is a trusted specialist in the design, supply, and installation of Surface Movement Guidance and Control Systems (SMGCS), helping airports around the world maintain safety and efficiency during low-visibility operations.

An SMGCS is a comprehensive system that ensures the safe movement of aircraft and vehicles on taxiways and aprons by combining enhanced visual aids with clearly defined control procedures. It is critical for minimising the risk of runway incursions and maintaining traffic flow, particularly during adverse weather conditions such as fog, heavy rain, or snow.

There are two defined levels of SMGCS based on visibility conditions:

  • Level 1: 1,200ft to 500ft Runway Visual Range (RVR)
  • Level 2: Below 500ft RVR

The lower the RVR, the greater the system complexity and maintenance demands. Airports operating at <500ft RVR require advanced lighting systems, stricter control measures, and ongoing technical support. atg airports has consistently delivered robust systems that meet these high standards, working closely with airport authorities and regulatory bodies.

Key SMGCS elements provided by atg airports include:

  • Stop bar lighting
  • Runway guard lights
  • Taxiway centreline lighting
  • Clearance bar lighting
  • Illuminated signage

Our solutions integrate seamlessly with airfield lighting control systems, allowing centralised monitoring, routing, and real-time management of ground movements.

With decades of industry experience and an in-depth understanding of international standards such as ICAO Annex 14, and EASA,  atg airports offers tailored SMGCS installations designed to enhance operational safety, maximise efficiency, and future-proof airport infrastructure.

SmartControl System options

SmartControl

SmartControl is an airfield lighting & monitoring system that can cater for all airport requirements, from a simple CAT I system up to a CAT IIIb requirement.

SmartMini

The SmartMini is an AGL control system which has been designed and developed to the highest specification in terms of quality and reliability, for airports with lower volumes of traffic.

 

Stop bar lights

For operations less than 600 feet RVR, it is a necessity for stop bars to be installed at intersections where the taxiway centreline is illuminated, as well as a lighted taxiway and an active runway intersection. These types of inset fixtures (in-pavement lights) are red in colour, generally unidirectional and installed along the holding position markings. Clearance for a pilot or other ground vehicle to proceed is visually achieved when the stop bar is extinguished by the controller. Stop bars located at runway intersections are interlocked with green centreline lead-on lights, which extend from the stop bar location onto the runway.

Normal operation of stop bars include:

  • Clearance by air traffic control to a pilot or ground vehicle operator to enter the runway. The deselection of the lights causes the red stop bar to be extinguished and the green lead-on lights to illuminate.
  • After a predetermined time or after traveling approximately 100 meters beyond the stop bar, the aircraft or vehicle activates a runway incursion sensor. This sensor automatically relights the stop bar and extinguishes the first segment of the lead-on lights between the stop bar and the sensor. These actions provide added protection for the runway against any inadvertent entry by a trailing aircraft or vehicle.
  • The aircraft then activates a further sensor at approximately 120 meters which extinguishes the remaining lead-on lights.
  • If for some reason either runway incursion sensor is not activated within a specified time limit, the stop bar will default automatically to “on” and both sections of lead-on lights will be turned “off.”

Runway Guard Lights

Runway guard lights are installed at all taxiways which provide access to the runway in use. These lights consist of alternately flashing yellow lights and can either be elevated of inset fixtures. The guard lights identify the presence of an active runway and indicate the location of a runway holding position marking.

Taxiway centreline lighting

For the guidance of aircraft and vehicles around the taxiway infrastructure under low visibility conditions taxiway centre line lighting is used. These consist of inset fixtures, that emit green light and are usually bidirectional. Taxiway Centreline. When the taxiway system passes through the ILS protected area the lights are alternate green yellow.

Clearance Bar Lights

To denote holding positions for aircraft and ground vehicles, three yellow in-pavement clearance bar lights are installed.

Airfield guidance signs have two purposes.

  1. Mandatory Signs – These give the pilot instructions that they must obey at all times. Before proceeding past this type of sign, they must receive permission from air traffic control.
  2. Information Signs – These give the pilots direction to a certain location by the use of arrows and taxiway names. It also provides a clear indication as to the precise location where an aircraft or vehicle is located and the names of the taxiway which it is travelling.

SMGCS enquiry

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