Understanding the Role of Diversion Routes & How They’re Planned

When planned roadworks or emergency closures disrupt our road network, diversion routes become essential to keeping traffic moving safely and efficiently. But behind every yellow sign and temporary arrow lies a carefully thought-out strategy designed to minimise disruption and maintain accessibility. In this blog, we break down the role of diversion routes and the critical planning that goes into making them work.

Why Diversion Routes Matter

Diversion routes are more than just alternatives — they are crucial components of traffic management. Their primary role is to:

• Maintain access and connectivity when primary routes are closed

• Protect road users by guiding them along safe, appropriate roads

• Prevent congestion in residential or unsuitable areas

• Support local services and emergency access throughout the works

Whether it’s for a short-term overnight closure or a long-term infrastructure project, well-planned diversions ensure that life keeps moving.

Key Considerations in Diversion Route Planning

At Beaumont Traffic Management, planning a diversion route is not a one-size-fits-all exercise. It involves coordination with local authorities, compliance with guidance (like Chapter 8 of the Traffic Signs Manual), and real-world on-the-ground understanding. Key considerations include:

1. Suitability of the Route

Not all roads are appropriate for diverted traffic. We assess:

• Road classification and surface condition

• Width and geometry (e.g., tight bends or weight restrictions)

• Whether the route can safely accommodate the expected volume and type of vehicles

  
  

2. Impact on Local Communities

We aim to reduce the impact on residential areas and avoid creating new bottlenecks or hazards. Consultation with local councils and residents often plays a part in route selection.

3. Clear Signage

Diversion signage must be:

• Consistent and logical, providing clear direction at every key point

• Visible in all conditions, particularly at night or during adverse weather

• Compliant with current regulations and tailored to the road type and road users

4. Coordination with Other Works

Diversion routes must be cross-checked against other planned works to avoid overlap. This means working closely with utility companies, contractors, and highways authorities to ensure a coordinated approach.

5. Contingency Planning

Sometimes the unexpected happens – a road incident on a diversion route or sudden weather event. That’s why every diversion plan should have a contingency built in, allowing rapid response and adjustment.

How Technology Supports Diversion Planning

Modern planning tools like GIS mapping, vehicle tracking, and traffic flow modelling allow us to design routes more accurately and test scenarios in advance. This ensures that routes are not only theoretically viable but practically functional in the real world.

In Summary

Diversion routes are critical to the safe and successful delivery of roadworks and infrastructure projects. At Beaumont Traffic Management, we take a proactive and detail-led approach to their planning — ensuring that road users, residents, and workers alike can rely on safe, well-managed routes throughout every phase of a project.

Need expert support with your next project’s traffic planning?

Get in touch with our experienced team to learn how we can support with bespoke diversion route design and implementation.

Contact Us