Energy

Anaerobic digestion and rural energy.

Anaerobic digestion and biomass plants are judged on the lorries and tractors that bring feedstock and take away digestate. We assess the movements by season and agree routes.

Main guide: Transport for solar farms and battery storage

Feedstock deliveries peak around harvest, often on rural roads. The council will want evidence of vehicle numbers, routes and the effect on villages along the way.

01

What the council focuses on

HGV and tractor movements through the year, harvest peaks, the routes vehicles will take, the access design, and construction traffic for the plant itself.

02

The evidence that answers it

  • A movement schedule by month, based on feedstock tonnages.
  • Routing plans and, where needed, a routing agreement.
  • Access design for articulated vehicles and tractor trailers.
  • A Construction Traffic Management Plan.
03

Small wind and other rural energy

Small wind turbines and other rural energy projects mainly raise construction access questions, including abnormal load deliveries. We plan these with the delivery contractor.

04

What the application usually needs

  • A movement schedule by month based on tonnages.
  • Routing plans and, where needed, a routing agreement.
  • Access design for HGVs and tractor trailers.
  • A Construction Traffic Management Plan.
  • An assessment of effects on villages along the routes.
05

A typical case

A typical case is an anaerobic digestion plant on a farm, taking crops and slurry from nearby farms. The council asks about tractor and lorry movements at harvest. We convert feedstock tonnages into vehicle movements by month, agree routes that avoid village centres, and design the access for articulated lorries and tractor trailers.

06

Technical points

Feedstock tonnages and digestate spreading drive the movement numbers, with peaks at harvest. A Section 106 routing agreement can secure routes. Small wind and biomass projects mainly raise construction access questions, including abnormal loads.

Feedstock is often collected from farms within a short distance, using tractors and trailers rather than lorries. Digestate may be taken back to the same farms for spreading, so some trips are linked. We show the movements on each route and propose routing that avoids sensitive roads, with weighbridge records used to monitor compliance.

07

If highways raise concerns

Concerns usually relate to HGV and tractor movements through villages. A routing agreement, movement caps and access improvements usually resolve them.

Where seasonal peaks are a concern, we show movements by month so officers can see the busiest periods.

08

How we help

We prepare the transport statement or assessment, routing plans and CTMP.

The same questions arise in Scotland and Wales, where they are assessed against NPF4 and Scottish guidance or Planning Policy Wales and TAN 18 rather than the NPPF.

To get a quote, send us:

  • The site address or a location plan.
  • The feedstock tonnages and sources.
  • The proposed routes and access.
  • Any pre-application advice or highways comments you already have.
FAQ

Questions we get asked

How many vehicle movements does an AD plant generate?

It depends on tonnages. We calculate movements by month.

Will the council ask for a routing agreement?

Often, where routes pass through villages.

Do biomass plants raise similar issues?

Yes, mainly fuel deliveries and construction traffic.

What about construction traffic?

We prepare a CTMP.

Can you help with small wind turbines?

Yes, including abnormal load deliveries.

Related

Related guidance.

All insights

Related services: Transport Assessments · Construction Traffic Management Plans · Site access design.

Guidance and sources
  1. GOV.UK: National Planning Policy FrameworkEngland. National policy on transport in planning decisions.
  2. GOV.UK: Travel Plans, Transport Assessments and StatementsEngland. Planning guidance on proportionate transport evidence.

Sources checked 8 November 2026. General information, not advice on a specific site.

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