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EXPERTS IN INFRASTRUCTURE SOLUTIONS

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Ensuring Safety with Reliable Track Warning Services​

“RSS Infrastructure (RSSI) has embedded safety procedures and principles into its operations. As a result of this approach, RSSI has made significant investments in Track Warning Services, including Automatic Track Warning Systems (ATWS) technology, to ensure that we can provide our clients with the most appropriate protection methods tailored to their specific needs. We can plan and install ATWS or any variants across the UK rail infrastructure.”

David Hodkinson, Head of Track Warning Services

RSS Infrastructure is the UK’s leading supplier of Track Warning Services and has invested in state-of-the-art technology that can increase safety and productivity. Our teams are experts in their field, dedicated to providing quality and safety with every installation on the network. Our experienced teams plan and install Automatic Track Warning Systems (ATWS) sites throughout the UK to meet clients’ needs. From planning to completion, we focus on exceptional service and support, helping ensure smooth and efficient rail operations.

Our Track Warning Systems

Our portfolio of Track Warning Services comprises a dedicated planning team conducting site surveys and safe work planning, as well as the installation of several track warning systems such as Automatic Track Warning System (ATWS), Semi-Automatic Track Warning System (SATWS), and Lookout Operated Warning System (LOWS), along with providing additional protection in line blockages. Moreover, we also utilise geofencing technology to ensure the safety of the workforce.

Improving Worker Safety and Productivity

Automatic Track Warning Systems (ATWS) are vital for improving track worker safety and productivity in the railway industry. They provide an audible and visual warning to workers of approaching trains or on-track vehicles, allowing them to move to a safe location and avoid the risk of accidents. Using ATWS helps improve worker safety and productivity by reducing setup and take-down time, maximising the time spent on tasks. Additional features such as remote monitoring, adaptable warning distances and integration with other systems enhance these systems’ safety and productivity benefits.

Daylight Working Reduces Fatigue

Furthermore, daylight working increases safety and efficiency, providing cost savings for contractors. We estimate that working conventionally during night-time line blockages results in up to a 70% drop in production while still paying the workforce 100% of their time. Working under a Track Warning System during daylight can increase productivity by over 100%, resulting in more paid hours and drastically reducing driver fatigue related to early-hours driving.

Contact Track Warning Services Division

For reliable project delivery, contact us today at 0330 113 0004. Led by David Hodkinson, our experienced team of Track Warning Services experts are ready to assist.

MG, Network Rail
Sandwell and Dudley
Our Civils teams are highly skilled, experienced, and equipped with essential certifications such as PTS, CSCS, and CPCS to work safely and efficiently on both civils and rail infrastructure projects.
AM, Volker Rail
Killinghome
Great attitude to completing complex works.
DC, Network Rail
Manchester Square One
Thank you for providing the S & T staff for Oakengates Tunnel at the weekend (and at short notice). I wish it were this simple every time! We will request your services again at the next exam. Thanks again; it was greatly appreciated.
PQ, Network Rail
Northampton
Karl and the team are superb. Always help us out last minute. Great on-call over the weekend. Really good staff, never any defects. Very happy and don't use anyone else.
CP, Network Rail
Holgate York
Your team worked together to complete installation of Xing and back rails. Then completed six welds. Great effort.
NR, Network Rail
Stoke on Trent/Stafford/Nuneaton
I can't fault the teams. They always help me and go above and beyond to do what they can. I only use RSS and have done for the last couple of years. Their work is spot on, and the welds are immaculate. The guys I deal with internally are smashing. I get on with them.
CF, Network Rail
Shrewsbury
Long-term staff from RSS, happy with them. We would like to see competencies of current staff so we can use their skillsets better. The only downside is a lack of flexibility—sometimes we need to change/cancel shifts.
JM, Network Rail
Saltley
I deal with Audrey a lot, who is wonderful. The quality of staff is very high. Had several members of staff on-site for around 18 months now. There are no issues, nothing to improve on, and I am very happy. Asked for further staff.
SP, Network Rail
Saltley/Sandwell
Communication has improved over the last few months. Works always delivered well, very few failures, impressed with staff sent.
DR, Network Rail Saltley
Saltley Depot
Worked with Karl for about 7 years. 264 welds with only 1 failure (welder error) is incredible. Staff at RSS always keen to understand if there is a failure and provide feedback to the welder. Cannot fault the team at all. We use RSS as our first choice due to the service. Karl and the team help me hit my internal KPIs.
DA, Network Rail
Manchester Guide Bridge
Really good service from the RSS Welding teams. I called James with a last-minute issue last week, and he sorted it out within 30 minutes. Always easy to get hold of and always sort out my issues. RSS are my preferred supplier. 10/10
AM, Winvic
Northampton
Vic, Karl, and the team are superb. Competency of staff is great. Any difficulties on-site are raised. I am very happy with the team provided.
NB, Network Rail
WVL
The staff worked really well together and went above and beyond to help with the task at hand.
DR, Network Rail
West Midlands and Chilterns
We have used your services for around seven years; problems are few and far between, and your staff go above and beyond to help.
GP, Midland Metro Alliance
Wednesbury
Deal with Christian and Steve a lot. Best of the three suppliers in terms of quality of staff - one in ten may turn out to not be the right fit, but that is life, and you don't always know until a few weeks into them being here. CVs are sent by Steve very quickly, and he provides all the info I could need. I am very happy with the quality of the candidates sent. Christian and Gav on-site always deal with PPE, toolbox talks, and the like. The staff like them.
CM, Network Rail Shrewsbury
Shrewsbury DU
Deal with Karl and James on a regular basis. Very knowledgeable in their work, always a good service, nothing to improve on, very happy.
MB, ISS
Cartbridge Lane
On Sunday night of week 11, I had three weld teams working on-site. The weather conditions were red hot one minute, then pouring rain the next. All the men worked brilliantly to pull around a job that, at one point, was falling behind schedule. One welder in particular was outstanding: NM. The most pleasing thing for me as a site manager, though, was the teamwork all six men showed.
DN, Network Rail
Broxbourne - Tottenham
The team integrated well with the team, looking forward to working closely in the future.
DD, Network Rail
West Hampstead
I enjoyed working with RSS. The staff integrated well. I am happy for RSS to support projects in the future.
NB, Network Rail South Wales
Canton Cardiff
I enjoyed working with RSS. The staff integrated well. I am happy for RSS to support projects in the future.
NB, Network Rail South Wales
Canton Cardiff
I am very happy with RSS's service. Minor improvements have been discussed, and the management team has acted really quickly to address them, which is very pleasing to learn.
TF, Network Rail
East Midlands Route
RSS have been fantastic in meeting our requests on the East Midlands Route. We've encountered some big challenges over the last 12 months, but RSS has always been on hand when we needed support.
ML, Network Rail
Forncett
Very impressed with RSS Welding. Despite problems, they have been helpful and professional.
AB, SPL Powerlines
West Hampstead to Wigston
The conduct of the RSSI staff working on our sites has generally been excellent. LM & TB have both been highly praised by our construction team on-site.
PQ, Network Rail
Broad Lane/Kilsby Tunnel
Thanks for your assistance at short notice.
ET, Network Rail
Pantyffynnon
Satisfied with the service.
IN, Network Rail
Dee Marsh
I have nothing but praise for James and his staff. Nothing is ever an issue, and they always come with the correct attitude to complete the works. Any issues, they are more than happy to come up with a solution.
KV, Network Rail
West Hampstead
Very helpful staff, happy with the team provided.
NR, Network Rail
Stafford DU
Satisfied with the service I receive from RSS Welding department. They always go the extra mile to ensure we can have resource requests, even when it's at really short notice. They always bend over backwards to help in any way they can to keep our work compliant and trains and passengers moving.
SH, Midland Metro Alliance
Wednesbury Depot
Consistently reliable and efficient service.
TF, Network Rail at Kettering
Kettering
Always impressed by the responsiveness of the team.
AP, Pod-Trak Limited
Brockenhurst
Dave and the team were fantastic in removing and reinstating the level crossing with, it has to be said, very little notice. Thanks for an excellent job all around.
AJ, Network Rail
Coleham Depot, Shrewsbury
Very pleased with RSS professionalism, service, and productivity. Thank you.
GJ, Network Rail
Ludlow
The team worked efficiently and delivered great results.
ER, Skanska
Bickenhill
Great service and attention to detail.
LW, Network Rail Works Delivery
Bletchley Depot
Always very helpful and accommodating. Staff have good knowledge, work hard, and are keen. Any issues are dealt with quickly and professionally.
PC, Network Rail
Sandy, Stoke, Tallington
Sending end-of-shift reports could be improved.
JG, Morgan Sindall
White Occupation/Chittening Wharf Bridge
As usual from Graham and the lads, superb attitude towards safety and execution of the works from start to finish

Speak to our experts about your next project

More on Track Warning Services

Automatic Track Warning Systems (ATWS) provides advanced warning of approaching trains to work groups operating within a Protected Area; this will be identified on the ATWS design plan. These sites are usually static and can cover several lines and junctions. The ATWS uses strike-in/strike-out treadles at specific locations on the track. An audible or visual warning is triggered when trains pass the strike-in treadle. The alarm stays on until the train passes over the strike-out treadle, cancelling it.

Frequently Asked Questions

Track Warning Systems protect track workers from approaching trains. RSS Infrastructure provides a range of Track Warning System options tailored to specific client needs, including Automatic Track Warning Systems (ATWS), Semi-Automatic Track Warning Systems (SATWS), Lookout Operated Warning Systems (LOWS), and geofencing technology.

Using a TWS significantly enhances track workers’ safety by providing advanced warning of approaching trains. It also improves productivity by allowing work to continue during daylight hours, reducing the need for less efficient night-time line blockages.

An Automatic Track Warning System (ATWS) provides an automated warning to work groups within a defined “Protected Area” when a train approaches. The system utilises track-mounted “Strike in/Strike out” treadles that detect trains. When a train passes over the “Strike in” treadle, audible and visual alarms are activated and remain active until the train passes over the “Strike out” treadle, cancelling the alarm.

While both ATWS and SATWS use treadles to detect trains, a Semi-Automatic Track Warning System (SATWS) relies on a controller to cancel the alarm once the train clears the work site. This semi-automatic approach offers intelligent, autonomous alerts while retaining scalability and reliability.

ATWS provides an audible and visual warning to workers of approaching trains or on-track vehicles, allowing them to move to a safe location and avoid the risk of accidents. Using ATWS helps improve worker safety and productivity by reducing setup and take-down time, maximising the time spent on tasks.

A LOWS utilises a radiographic signal to warn track workers of approaching trains. RSS Infrastructure provides both static and mobile LOWS options. Mobile LOWS, operated by patrolling teams, are ideal for transient worksites, while static LOWS can cover larger worksites up to 1000m.

Geofencing technology uses virtual boundaries to define safe and unsafe zones within a worksite. Workers wear devices that interact with these geofences, triggering audible, visual, and vibration alarms if they cross into a designated unsafe zone. This alerts them to potential hazards and improves situational awareness.

When combined with Track Warning Systems, geofencing technology further enhances safety by providing real-time updates on changes to safe working zones, site entrances, and equipment locations. This integration ensures workers are immediately notified of dangerous situations, offering an additional layer of protection and maintaining safety on rail and infrastructure projects.

RSS Infrastructure invests in additional safety solutions such as the ZKL 3000 RC. This innovative unit protects workers in line blockages and gathers valuable data for analysis and improvement.

In addition to TWS, RSS Infrastructure provides a wide range of integrated infrastructure solutions, including:

Projects

Installation of ZKL3000RC TCOD unit at Werrington | Track Warning Services | RSS Infrastructure
Track Warning Services

Werrington Grade Separation

Werrington Grade Separation was a railway construction project which involved the excavation and transportation of over 50,000m3 of soil and clay to construct a new dive-under underneath the East Coast Main Line.

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SATWS for Network Rail Newcastle DU | Track Warning Services | RSS Infrastructure
Track Warning Services

SATWS for Network Rail Newcastle DU

Network Rail Newcastle DU’s maintenance team needed to regularly inspect their section track and junctions for wear/tear and damage to ensure safe passage of trains all year round.

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