Freight train, via Istock

Maximising UK freight's rail modal shift

The Rail Safety and Standards Board have conducted a research project that shows train operators in Great Britain can safely and securely haul more goods wagons per train than current practices afford. This will revolutionise rail freight transportation through allowing the line capacity to be maximised, thus reducing their environmental impact and improving financial efficiency.

This research has enabled existing couplers, which connect freight wagons, to safely connect more load, meaning that a 34.5 tonne coupler rating can increase 16% to 40 tonne, and some 56 tonne rated couplers increasing 13% to a new 63 tonne rating. This is notable as the uprated values can be applied to existing wagons currently in use, removing the need for costly engineering upgrades to accommodate.

Resulting from this research, it is estimated that more than 12,000 rail freight wagons, over 50% of Britain’s fleet, will receive an increase in traction rating.

The environmental impact of this research is significant as the real-world case studies have found that increasing coupler strength ratings will supply huge sustainability and fiscal benefits. Over two tonnes of carbon dioxide emissions can be saved on a typical Anglo-Scottish, accompanied by the reduction of considerable amounts of nitrogen oxides and particulate emissions.

RSSB’s Lead Research Analyst, Aaron Barrett said:

“It's good to see the results of our research directly helping freight train operators. By enabling longer trains, more goods and materials can be hauled per journey. This will have a hugely positive impact on emissions and financial efficiency.

“This research project is the first in a series, funded by the Department of Transport, designed to help the rail freight sector in Great Britain. Our freight research programme is currently focusing on the safe operation of rail freight, raising the average speed of services, enabling the operation of longer trains and reducing emissions.”

On a typical Anglo-Scottish journey, over two tonnes of carbon dioxide emissions can be saved, as well as considerable amounts of nitrogen oxides and particulate emissions. Significant financial efficiencies are also delivered due to the train length increase.

Case studies

  • A 50-mile journey (each way) with 24 wagons. This increased to 27 wagons and provided environmental savings of 0.25 tonne CO2 (Carbon Dioxide). The projected annual financial savings were £291k.
  • A 235-mile journey (each way) with 14 wagons. This increased to 16 wagons and provided environmental savings of 1.4 tonne CO2. The projected annual financial savings were £245k.
  • A 235-mile journey (each way) with 19 wagons. This increased to 23 wagons and provided environmental savings of 2.1 tonne CO2. The projected annual financial savings were £364k.

The rail industry is now implementing the improved freight coupler load ratings and identifying routes suitable for longer freight services.

Rail Minister, Huw Merriman said:

“This research is hugely promising. It’s great to see how we’re continuing to improve our freight network, so even more goods and materials can be moved with every journey, strengthening the UK supply chain.

“Government investment into new ideas and innovations is vital as we continue to strengthen the UK supply chain and strive towards greener freight and net zero by 2050.”

Want to know more about the opportunities to become a key supplier to the UK rail industry? Attend TransCityRail and access an exclusive marketplace of buyers from Network Rail, HS2, Train Operators, Major Contractors, and all other tiers of the supply chain. For more information and to secure your place click here

RTM Mag Cover, Feb/March 23


Investing in the future of Scotland's rainforest

This issue highlights the latest topics within the rail industry, from decarbonising the Midlands, improving rail safety, meeting the future priorities of Scotland's Railway & more!                                                      


View all videos
TransCityRail Banner


South \ 28 09 23
North \ 09 11 23
Mids \ 29 02 24

TransCityRail is a series of regional, interactive and insightful events across the country bringing together leaders, collaborators, problem solvers and innovators in a creative and invigorating way.

This series of events supports and informs the whole of the rail industry and connects suppliers with buyers, specifiers, leaders and decision-makers looking to procure a wide variety of innovative products and services for their region.


Episode 37 - What does the future of transport look like

This episode of Track Talk sees a discussion with Conservative MP for Milton Keynes South Iain Stewart, Chair of the Transport Committee. The focus of this episode revolves around disruptive technologies within the rail sector, specifically the impact that the new, innovative advancements and trends might have across all modes of transport. The Transport Committee are taking proposals from people in the sector who are in the know about innovations that deserve more attention, so we have given them the platform to discuss the process and hear what the committee is looking for. 

More articles...

View all