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Mammoet (www.mammoet.com) has supported ESTA to establish new stability guidelines for Self-Propelled Modular Trailers (SPMTs) when transporting large and heavy loads.
Leading the project at Mammoet is Ludo Mous, Director of Operations for Europe. With over 30 years of industry experience, Mous has seen the market change and is passionate about enhancing SPMT training and safety.
Mous said: “In the past there were rules of thumb which, for the time, were practical and acceptable to use. However, these days, with transport becoming more complex and reaching greater limits, the calculations for stability must be correct. By creating awareness of these guidelines, we hope to prevent operations being performed with dangerous and critical transports.”
Mammoet was part of ESTA’s first SPMT working group, established in 2016, which created its original Best Practice Guide for SPMT operation. A second, larger workgroup was later formed to review the existing guide and expand on it.
In October 2023, ESTA published new trailer stability guidelines, which will be referenced in the first upcoming revision of the DNV ST-N001 Maritime Operations Standard, published by assurance and risk management experts DNV.
“The core principle of the guidelines is a calculated approach,” explains Mous. “Past guidance was based on a measured stability method. This new method is calculating stability taking into account dynamic factors like braking, acceleration, wind, road camber, and so on.”
To establish the guidelines, testing was carried out by Mammoet on SPMTs at its quayside yard in Schiedam, the Netherlands. It covered aspects such as acceleration, breaking, tilting and emergency stops.
Currently, the group is reviewing a learning outcome that will be used to establish the minimum training requirements for an SPMT operator, further enhancing user knowledge and safety.
Mammoet
Mammoet helps clients with Smarter, Safer and Stronger solutions to any heavy lifting or transport challenge. Mammoet aims to develop long term relationships in order to understand their businesses and challenges best, so it can realize the most efficient and cost-effective approaches. Mammoet has a unique global network and an unparalleled fleet of equipment. Through deep and longstanding engineering expertise and the highest quality and safety standards in execution, it brings an intelligent and flexible approach to projects across a wide breadth of industry sectors. Clients trust Mammoet to help them achieve feats that were once considered impossible, and Mammoet has often broken records in doing so.
