Vehicle Incursion Defence Systems

Vehicle Incursion Defence Systems have been developed to directly address the challenge of incursions within road safety. Hill & Smith Infrastructure has introduced a smarter, safer solution to the market, designed to protect the workforce, protect the road users and help to ensure everyone gets Home Safe and Well.

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Vehicle Incursion Defence Systems

Road worker deploying Incursion Defender beside a warning lamp

It Is Time to Stop Vehicle Incursions

Since October 2017, there have been a staggering 23,981 vehicle incursions across the UK*. Lives are at stake in every one of these incidents, despite the cause of entering roadworks. Whether due to confusion, following traffic or intent, the result remains the same. Standard traffic management relies on visual deterrents, but only physical barriers are preventative.

Incursion Defender is a system designed to mitigate risks to the workforce and road users by preventing determined vehicles from mistakenly or purposely entering roadworks.

Hill and Smith installation team working at night

It is a purpose-built incursion protection barrier tested as a highway device, providing a portable, modular solution. Offering safety improvement through innovative design, Incursion Defender brings intruding vehicles to a controlled stop using friction to decelerate. The result is genuine reciprocal safety, with the workforce being shielded from the determined vehicle and the vehicle occupants protected from the barrier.

*IPV & Incursion Working Group Report – December 2025

Built for Every Stakeholder Involved

Traffic Management Companies

With a duty of care to uphold, Incursion Defender provides essential protection for your project’s most valuable asset; its people.

Operatives

Portable and modular, Incursion Defender is easily re-deployable. With no bolts and no anchors, the system can be assembled in just 10 minutes, reducing time exposed to live, unprotected traffic.

Road Users

Making sure everyone gets ‘Home Safe and Well’, Incursion Defender is a barrier for both sides.

Incursion Defender barrier deployed across a closed road

Supporting Safety with Incursion Defender

Effective safety within roadworks requires protection against vehicle incursions, which remain a high risk. Incursion Defender offers a safety improvement against this risk by bringing determined vehicles to a controlled stop rather than solely relying on visual traffic management measures. Achieving Impact Severity Level (ISL) A, the system provides maximum protection for both roadworkers and the vehicle occupants during impact. Lightweight, portable components with a tool-free installation reduce time exposed to live traffic and the opportunity to have Incursion Defender delivered fully assembled to site minimises this further.

Aside from injuries, incursions shut sites, delay programmes and prompt investigations. The challenge of managing dangerous vehicle entry is recognised by all stakeholders involved in road safety, from companies responsible for procurement and delivery, to the operatives on-site and drivers using the network. For traffic management companies with a duty of care to uphold, Incursion Defender provides safety improvement through innovative design, protecting your project’s most valuable asset: its people.

The innovation marks a vital step within road safety.

Download the Incursion Defender Data

All Solutions

Incursion Defender

Engineered for individual components to remain lightweight, between 3-27 kg per item. No machinery is required during assembly, ensuring easy deployment and redeployment as schemes evolve. Complemented with a no-bolt design and modular units to suit different lane and road widths, the surface-mounted Incursion Defender is a practical solution, delivering flexibility and efficiency. Temporary or emergency access is supported by optional wheels (fasteners required), which can be repositioned in 30 seconds. An optional cone lamp provides an early visual warning for drivers, particularly in low visibility. As the only incursion protection barrier tested as a highway device, Incursion Defender achieves Impact Severity Level (ISL) A, providing the highest level of occupant safety with the lowest risk of injury during impact. No cabin or fuel tank penetration. Incursion Defender doesn’t penetrate the underside of the vehicle. Engineered to CD 378 2.51.UK and MASH 2016 performance standards. Impact-tested results demonstrate the stopping distance of a BS EN 1317-2 N2 (1500 kg car) to be: 41m at 50 mph 16m at 30 mph Incursion Defender is designed for highways roadworks, giving road workers an extra line of protection inside the work zone. See our wider range of temporary vehicle restraint systems.

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SentriGate

An instant solution to traffic control. Experience seamless traffic control with the SentriGate, the portable, solar-powered gate solution. Ingeniously designed for rapid setup by a single operative, SentriGate offers incredible ease of setup and operation. Boasting a unique lightweight design for portability, solar-powered operation for electricity-deprived areas, and optional high-visibility markings for safety compliance. The SentriGate transforms traffic management with unrivalled efficiency and versatility. SentriGate is used across the highways sector for roadworks, plant crossings and contraflows, and across the construction sector to control vehicle access to sites and compounds. Set up in 2–3 minutes Single operative build Solar powered Remote controlled Exceptional portability SentriGate is proven on live projects, including the A303 heavy plant crossings, the M27 Southampton scheme and the Oxford Station expansion. It is also available combined with our MASS barrier as MASS with SentriGate. View Our SentriGate Flyer

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Frequently Asked Questions

Have questions? We’ve answered the most common ones to help you plan your project with confidence.

Why are vehicle incursions a major risk during roadworks?

How does the Incursion Defender improve safety?

Who benefits from using the Incursion Defender?

What makes Incursion Defender different from other roadwork protection?

How quickly can the Incursion Defender be deployed or repositioned?

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Technical Resources

Visit our TechHub portal to see the latest installation drawings and manuals; a tool used by clients during the design, procurement and installation phase across international markets.

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