How Hill & Smith Infrastructure Sets the Standard for Rapid Deployment

When strategic road networks require large-scale, complex installations delivered with absolute certainty, Hill & Smith Infrastructure sets the standard for capability and reliability. Two recent schemes, on the M5 and M4, demonstrate our ability to mobilise at scale, execute with precision and uphold the highest standards of safety. The success of these projects shows how our expertise and scale help deliver certainty where time and complexity converge.

The Challenge

Both schemes required the installation of temporary vehicle restraint systems (TVRS) within exceptionally tight overnight windows. On the M5, 2,600 metres of Zoneguard System 2 steel barrier (N2 containment, W2 working width) had to be installed in a single night shift under full closure. On the M4, approximately 2,400 metres of Varioguard TVRS was deployed within just six hours in a night.

Delivering this volume in tight windows heightened safety oversight and coordination demands, as does night working in constrained environments. Changing site and weather conditions can also expose risks that compromise safety and operational success.

Workforce welfare remained central, with careful management of fatigue and vibration exposure risks through innovative and novel technological solutions, clear supervision and appropriate welfare provision, introducing increased complexities to operations.

Our Approach

Early contractor involvement was central to both projects. By engaging during the planning phase, we optimised methodology, resource allocation and site limitations, ensuring every element was timed to perfection. Our integrated management system, accredited to ISO 9001 (Quality Management Systems), ISO 14001 (Environmental Management Systems) and ISO 45001 (Occupational Health and Safety Management Systems), reinforces every process, guaranteeing quality, environmental responsibility and workforce safety, as well as helping us ensure alignment to National Highways’ Net Zero roadmap (2030/2040/2050) across operations, maintenance, construction and road travel. These were also driven by our own pathway to net zero across operations by 2040, which is backed by science-based targets and a Carbon Reduction Plan that’s built on recognised best practice.

On site, our teams exemplify the strength of our training model. All installation personnel are LANTRA NHSS 10B accredited, supported by continuous development. This ensures consistent, high-quality delivery across every scheme.

The M4 and M5 deployments showcase our ability to mobilise resources rapidly and deliver at scale. National coverage with multiple barrier storage locations allows us to source from the nearest depot, reducing transport emissions and improving efficiency, meaning roads reopen sooner and disruption is minimised. For context, switching a 200 km haul to a closer depot has saved around 100 kg CO₂ per articulated lorry (artic) each way on comparable schemes, which equates to roughly 1 t CO₂ every five artic deliveries. Our logistics have also been FORS Gold accredited for six consecutive years, with targeted eco‑driving and idling controls in place to reduce fuel and emissions year‑on‑year.

Outcome

Both schemes were completed within their respective overnight windows, eliminating the need for additional closures and keeping projects firmly on schedule. The M5 reopened on time after a single night shift and the M4 returned to normal traffic flow after just six hours.

These achievements delivered tangible benefits, including:

Rapid deployment of our TVRS solutions safeguarded both the workforce and the travelling public, ensuring gains through efficient resource use and reflecting our commitment to safety, responsibility and minimising disruption.

Our installation process was also fundamental to the success of these schemes. By combining a crane with a side loader, we achieved a level of speed and precision that traditional crane-only methods cannot match. This integrated approach reduces handling time, minimises site disruption and significantly lowers the risk of incidents, ensuring a safer working environment and faster programme delivery.

Hill & Smith Infrastructure has also invested in specialist drilling equipment to maximise installation efficiency. Our Asset Drilling Rig (ADR) replaces labour-intensive manual drilling with a mechanised process that is safer, more sustainable and significantly more efficient than traditional methods. Anchoring is completed in a fraction of the time, enabling rapid deployment and earlier road reopening.

By prioritising machine-led solutions over manual labour, we reduce physical strain, minimise manual handling, lower labour requirements and cut exposure to Hand-Arm Vibration Syndrome (HAVS), while reducing environmental risk.

The ADR is fitted with a powerful vacuum system that collects debris as drilling takes place, preventing dust and loose material from contaminating the carriageway and wider environment. Collected debris is stored within the unit and disposed of safely at the works depot or designated on-site areas, supporting cleaner and safer working conditions.

Why It Matters

These projects illustrate the capability and reliability that define Hill & Smith Infrastructure. By working with us, customers gain access to expertise that has been refined over decades, ensuring even the most challenging programmes are completed on time without compromising safety or quality.

Our commitment to safety and efficiency underpins everything we do. From investing in advanced, innovative plant to developing methodologies that reduce risk and optimise performance, we continually strive to deliver solutions that protect people, minimise disruption and maximise value for our customers. This focus sets a benchmark for rapid deployment in environments where time and safety are critical.

Find out more about our TVRS solutions and capabilities