May. 19, 2025
In the complex realm of offshore asset management, platforms often stand amid some of the harshest natural environments. Decommissioning these structures is not only a meticulous task but also one that demands the highest standards of care, efficiency, and, above all, safety. It is imperative for operators to equip themselves with the most advanced tools and systems to address this endeavour seamlessly. Central to this are state-of-the-art navigational aids.
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Navigational aids have historically played a vital role in ensuring the safety of land, sea, and crew. Their significance in the decommissioning process of an offshore rig is vital, as they contribute to upholding safety, promoting efficiency, and meeting international standards.
While the crucial role of accurate maps and GPS systems is widely acknowledged, it is also essential to spotlight the integral component of navigational aids: lighting. Adequate and appropriate illumination is a critical element that ensures a decommissioning project aligns with global benchmarks and maximises operational safety.
In a rapidly evolving offshore decommissioning sector, the emphasis on efficient, purpose-driven lighting and navigational aids has never been more paramount. This is especially true in today’s competitive global landscape, where differentiation becomes key to success.
Investing in high-quality navigational aids offers distinct advantages for decommissioning projects:
At Wellhead Electrical Supplies, we take pride in offering products from esteemed industry names like Tideland Signal and Orga BV. Our collaboration with these distinguished partners is grounded in a mutual commitment to safety, innovation, and excellence, ensuring our decommissioning clientele receive only the best.
A cornerstone in our array of trusted partners, Orga BV has been at the forefront of crafting top-tier navigational aids since . Their offerings span a broad spectrum, from helideck lighting to pivotal components like the CAP437 and IALA Navigation Lighting, each tailored to fortify the safety of offshore decommissioning ventures.
View the full Orga BV range we distribute here.
Now under the umbrella of the Orga group, Tideland Signal boasts over sixty years of expertise in crafting top-notch, cutting-edge navigational aids. These aids are pivotal for the decommissioning sector, underscoring safety as a fundamental consideration in their operations. As a long-standing trusted partner of Wellhead Electrical Supplies, Tideland Signal’s comprehensive range, which includes marine foghorns, lanterns, racons, visibility sensors, and flashes, has been instrumental in decommissioning projects worldwide.
View the full Tideland Signal range we distribute here.
What are the benefits of reviewing vessel and traffic navigational aids, and what makes a quality review?
In port operations, safety and efficiency are key. Aids to Navigation (AtoN) are devices, systems or services external to vessels, designed to enhance the safe and efficient navigation of vessels and traffic, such as lighthouses, buoys, and beacons.
Harbour Authorities (especially including Statutory Harbour Authorities) bear the responsibility of maintaining navigational aids crucial for vessel safety within their jurisdiction. Under the Merchant Shipping Act and Port Marine Safety Code, Harbour Authorities are usually also designated as Local Lighthouse Authorities who must review their AtoN every five years. This review aligns with a need to conduct Formal Safety Assessments to enhance port operations.
For these authorities, maintaining effective AtoN is not only a regulatory duty, but a critical aspect of safeguarding maritime interests. In an era of evolving regulations, policies, and increasing maritime traffic, optimising AtoN has never been more crucial.
In light of the duty and importance of undertaking regular AtoN reviews, what are the benefits of a quality review, and what makes a quality review?
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Optimising AtoN offers significant cost-saving potential. By repositioning or decommissioning redundant aids, authorities can reduce maintenance costs and allocate resources more effectively. Enhancing AtoN accuracy and reliability minimises the risk of maritime incidents, leading to savings in accident mitigation and response.
Strategic repositioning or removal of unnecessary AtoN reduces the frequency and scope of maintenance activities, leading to significant savings in labour, equipment, and resources. This occurs as AtoN locations are gradually built-up overtime if the system as a whole is not reviewed, meaning that previously placed AtoN such as special marks, channel buoys, or lateral marks on infrastructure, may no longer serve their intended purpose from when they were originally commissioned.
Improved placement of AtoN reduces vessel incident risks and associated costs of vessel repairs and environmental cleanup efforts. In some ports, especially those in estuarine environments, there can be significant shift in the bathymetric properties of the navigable water, outside of the main channels which are usually dredged. These shifts can result in the original placement of AtoN becoming less helpful over time, and in some cases, the AtoN can start to impede the passage of vessels.
Redirecting resources from redundant AtoN to critical areas enhances navigational aid effectiveness and optimises resource utilisation. In some cases, it may well be better to consider the use of a single isolated danger mark, rather than relying on a series of cardinal marks which can confuse mariners as to where the danger is relative to the shore or areas of shoaling.
Strategic assessments allow informed decisions on investments in new technologies or infrastructure upgrades, minimising lifecycle costs associated with AtoN maintenance and replacement. In some cases, ports initially opt for a sector light, which tends to require more maintenance than AtoN, which are structurally simpler. In this case, some ports find that well positioned leading lights can significantly reduce the costs they incur in place of using sector lights when guiding vessels through their main navigable channels.
Adhering to best practices and regulatory requirements mitigates the risk of non-compliance penalties and legal liabilities, ultimately leading to cost savings.
Proactive AtoN assessments and improvements build stakeholder confidence and trust, leading to indirect cost savings through improved reputation and increased support for funding initiatives.
There are a number of considerations to ensure an optimised, efficient AtoN review that will fully reap the benefits explored above.
A quality AtoN review should:
Optimising Aids to Navigation is a strategic opportunity for Harbour Authorities and Local Lighthouse Authorities. Ensuring compliance with industry standards and enhancing operational efficiency enables authorities to confidently navigate the complexities of maritime safety.
ABPmer’s maritime specialists regularly assist authorities in unlocking the benefits of compliance and efficiency, charting a course towards safer seas and more cost-effective operations.
Our consultancy delivers a comprehensive solution tailored to meet the stringent requirements set forth by regulatory bodies such as the Port Marine Safety Code and General Lighthouse Authorities, providing quality insights and recommendations to empower Harbour Authorities to make informed decisions to help reduce maintenance costs, promote efficient vessel passage, and ensure compliance with industry standards.
Prepared by Tim Aldridge, ABPmer Senior Maritime Consultant
As specialists in maritime risk assessment, we recognise that zero risk is rarely achievable. However, through careful examination and risk control measures, such as AtoN provision, our experienced consultants work closely with you to reduce or maintain navigation risk at acceptable levels, supporting safe, efficient operations at your port.
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