FRAI Global

Guide

Heavy haulage routing and permits explained

A clear explanation of how abnormal and oversize load routing, permits, escorts and compliance fit together, and why they are so interdependent.

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Quick answer

Heavy haulage routing and permits cover the planning required to move an abnormal or oversize load safely and legally: surveying a feasible route, raising statutory permits and notifications, arranging escorts where required, and keeping it all compliant. These elements are tightly interdependent, so a change to one (a date, an asset or a road restriction) affects the others. Keeping route, permit, trailer build and schedule on one live reference is what keeps them aligned.

What makes a load "abnormal" or "oversize"?

An abnormal or oversize load is one that exceeds the standard limits for weight, width, length or height, so it cannot simply travel like ordinary freight. Because of that, the movement has to be planned around the specific constraints of the cargo and the roads it will use.

That single fact drives everything else: the route has to be surveyed, permits and notifications have to be raised, and escorts or movement orders may be required before the load can move.

How do routing, permits and escorts fit together?

  • Routing: surveying and clearing a feasible path for height, weight, width and swept path, avoiding unsuitable structures and restrictions.
  • Permits and notifications: raising the statutory permits and notifying the relevant authorities and road or structure owners (for example via systems such as ESDAL in the UK).
  • Escorts and movement orders: arranging escorts and timing windows where the movement requires them.
  • Compliance and documents: keeping the paperwork and required data consistent with the actual movement.
  • Assets: matching the right trailer build and configuration to the load and route.

Why is it so hard to keep aligned?

Each element traditionally lives in a different place: route surveys in one tool, permits in a portal, escorts and schedules in email and spreadsheets, assets tracked informally. Because they are interdependent, a single change forces planners to re-check everything by hand, and context is easy to lose.

When the route, permit, trailer build and schedule all reference the same live record, a change in one place updates the picture everywhere, which is what makes the movement reliable to plan and execute.

FAQ

Frequently asked questions

What is the difference between routing and permits in heavy haulage?

Routing is planning and clearing a feasible path for the load; permits are the statutory authorisations and notifications that allow the movement to use that route. They are interdependent: the route determines which permits and notifications are needed.

When are escorts required for an abnormal load?

Escort requirements depend on the dimensions and weight of the load, the route and local regulations. They are arranged as part of planning the movement, alongside the route, permits and schedule. Always confirm specific requirements with the relevant authorities.

Does FRAI replace ESDAL or permit systems?

No. FRAI works alongside permit systems such as ESDAL, keeping route, permit, asset and schedule context aligned on one live reference rather than replacing the permit system itself.

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