Track Warning Systems
RSP can help in the design, build and factory test of Track Warning System, including control system housings, cubicles, disconnection boxes, mounting posts, and trackside warning infrastructure (sires / yodalarms).
Track Warning Systems
RSP designs, manufactures, integrates, and supports a comprehensive range of Track Warning Systems to protect track workers and improve safety across the rail network. These systems include;
- Semi-Automatic Track Warning System (SATWS)
- Automatic Track Warning System (ATWS)
- Train Approaching Warning System (TAWS)
- Signal Controlled Warning System (SCWS)
- Look Out Operated Warning System (LOOWS)
Our solutions are trusted across the UK rail industry and are engineered to meet the highest standards for reliability, compliance, and operational performance.
Whether you require a fully automatic system, a signal-controlled solution, or a lookout-operated warning system, RSP provides end-to-end capability, from initial design, build through to factory testing and delivery.
Our Range of Track Warning System Solutions
RSP supports all major types of trackside and train-activated warning systems, including control system housings, cubicles, disconnection boxes, mounting posts, and trackside warning infrastructure (sires / yodalarms) for Semi-Automatic Track Warning System (SATWS), Automatic Track Warning System (ATWS), Train Approaching Warning System (TAWS), Signal Controlled Warning System (SCWS), and Look Out Operated Warning System (LOOWS)
Design, Manufacture and Factory Testing
RSP offers a fully integrated service covering the complete lifecycle of your Warning System. Our in-house expertise allows us to support projects of any size or complexity.
We can assist with:
- System design and configuration
- Build and factory acceptance testing (FAT)
- Control system housings and equipment cubicles
- Disconnection boxes and mounting posts
- Trackside warning infrastructure, including sirens and yodalarms
- Supply of all required materials for system implementation
By manufacturing and integrating systems in-house, we ensure quality control, consistency, and compliance with relevant rail standards.
Automatic Track Warning System (ATWS)
When using the Axle Counting ATWS solution, it removes the human interaction of cancelling warnings. ATWS adds an additional layer of protection by automating detection and warning, while still allowing flexibility for dynamic, open-line working. The solution counts axles into the worksite and does not cancel any worksite warning until all axles are counted out of the system, in a multitude of directional routes.
This combination of automation and axle counting makes ATWS particularly suitable for permanent worksites.
How does an Automatic Track Warning System Work?
- Train detection via axle counter – A Frauscher FADC unit is retrofitted and used for reliable train detection, powered by a mains supply.
- Detectors positioned for real-world warning time – Axle counter train detectors are installed at calculated distances to ensure sufficient warning time for workers on site.
- Centralised control – The detectors are hardwired back to a central cabinet, which houses the electronic control unit, radio transmitters, and power supply, keeping everything robust, monitored, and site-ready.
- Instant warnings where they matter – Once a train is detected, radio signals trigger audio and visual alerts on personal or site-wide devices.
- Designed for transient worksites – Once installed, quick to deploy, adaptable in range, and approved for dynamic open-line working, improving both safety and productivity.
Key Benefits of an RSP Automatic Track Warning System
- Improved Safety for Track Workers – ATWS provides reliable, automated warnings, reducing the risk of human error and improving overall site safety.
- Consistent and Predictable Performance – Automated detection ensures that warnings are delivered in the same way, every time, regardless of environmental conditions or workload.
- Reduced Reliance on Lookouts – By minimising dependence on manual lookout arrangements, ATWS supports safer and more efficient working practices.
- Flexible Deployment -ATWS can be installed as a temporary or semi-permanent solution, making it suitable for a wide range of projects.
- Compliance with Rail Safety Standards – Systems can be designed to align with relevant railway standards and client specifications.
Semi-Automatic Track Warning System (SATWS)
A SATWS is a proven rail safety solution designed to provide early and dependable warnings of approaching trains to personnel working on or near the track. By combining automated train detection (treadles) with controlled manual release of warning, SATWS delivers a balanced approach to safety, enhancing protection while allowing site teams to maintain operational control.
The SATWS detects approaching trains and activates audible and visual warnings using treadles, once the worksite is clear, authorised personnel release the warning. They are widely used in the United Kingdom, Germany, Spain, France, Belgium, Poland and New Zealand, for track worksite safety.
How an Axle Counter-Based Semi-Automatic Track Warning System Works
- Train detection via axle counter – A Frauscher FADC unit is being retrofitted and used for reliable train detection, powered by a mains supply.
- Detectors positioned for real-world warning time – Axle counter train detectors are installed at calculated distances to ensure sufficient warning time for workers on site.
- Centralised control – The detectors are hardwired back to a central cabinet, which houses the electronic control unit, radio transmitters, and power supply — keeping everything robust, monitored, and site-ready.
- Instant warnings where they matter – Once a train is detected, radio signals trigger audio and visual alerts on personal or site-wide devices.
- Designed for transient worksites – Once installed – Quick to deploy, adaptable in range, and approved for dynamic open-line working — improving both safety and productivity.
Train Approaching Warning Systems (TAWS)
What are Train Approaching Warning Systems (TAWS)?
Working on or near the railway presents significant safety challenges. One of the most important is ensuring that track workers receive timely warning of approaching trains, allowing them to move to a safe position before a train reaches their worksite. A Train Approaching Warning System (TAWS) provides this critical protection by automatically detecting approaching trains and issuing clear audible and visual warnings to site personnel.
Unlike relying solely on lookouts, a TAWS offers a consistent, reliable method of warning that helps improve safety and supports efficient working practices. It is widely used during maintenance, inspection and renewal activities where early warning of train movements is essential.
How a Train Approaching Warning System Works
A Train Approaching Warning System uses train detection equipment positioned at strategic locations along the railway. When an approaching train is detected, the system activates a series of warning devices located within the worksite. These typically include high-visibility flashing lights and powerful audible alarms that provide workers with sufficient time to stop work and move to a designated place of safety.
The warning period is carefully designed to provide adequate evacuation time while minimising unnecessary disruption to maintenance activities. Modern systems are highly configurable, allowing them to be adapted to suit different line speeds, worksite layouts and operational requirements.
Benefits of a TAWS
Implementing a Train Approaching Warning System provides several important benefits for rail infrastructure projects:
Improves the safety of trackside personnel through automatic train detection.
Reduces reliance on manual lookout arrangements.
Provides consistent audible and visual warnings across the worksite.
Supports efficient maintenance by maximising available working time.
Suitable for a wide range of planned engineering and maintenance activities.
Designed for reliable operation in demanding railway environments.
By providing dependable early warning, TAWS helps create a safer working environment while supporting productivity on the railway.
Why Choose RSP?
RSP has extensive experience designing and manufacturing safety-critical products for the UK rail industry. Our Train Approaching Warning Systems are developed with reliability, ease of deployment and operational performance in mind, helping rail organisations protect their workforce without compromising efficiency.
As a trusted UK rail supplier, RSP manufactures products to meet the demanding requirements of modern railway infrastructure projects. Our knowledgeable team works closely with customers to understand project requirements and recommend the most appropriate solution for each application.
Whether your project involves planned maintenance, renewals or infrastructure upgrades, RSP can provide dependable Train Approaching Warning System solutions backed by technical expertise and responsive customer support. Contact our team to discuss your project requirements and discover how our TAWS solutions can help improve safety and operational efficiency across your railway worksite.
Speak to our experienced team today
To discuss your warning system project requirements, from design, build and factory test, including control system housings, cubicles, disconnection boxes, mounting posts, and trackside warning infrastructure (sirens / yodalarms).
Contact RSP today, or request a quote for your project.
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