How to Object to an Emerging Local Plan on Highway and Transport Grounds
Updated: Aug 11
A practical guide for planning professionals, developers, parish councils, residents' groups, and any organisation or individual affected by an emerging Local Plan.
THaT Consultancy | August 2026
Introduction
A Local Plan sets the pattern of development in an area for years, often decades. It decides where housing and employment will go, how much growth is expected, and what infrastructure will support it.
If the transport strategy underpinning a Local Plan is weak, the consequences endure for a long time. Once a site has been allocated, it is generally too late to argue against it at the planning application stage because the principle of development has already been established.
In this Briefing Post, we explain how and when to object to an emerging Local Plan on highway and transport grounds. We also explain the new, and rather more complicated, plan-making system that is now running alongside the old one.
Our Experience & Expertise
We provide expert transport planning and engineering advice to private and public sector clients involved in planning and development.
We act for a wide range of clients on all sides of the planning debate, including landowners, developers, public authorities, and objectors such as parish councils and residents' groups.
Irrespective of who our client is, we always provide our honest and professional opinion. Any advice we provide can be defended under cross-examination if necessary.
Why Local Plan transport representations matter
Local Plan consultations can look forbiddingly technical. The evidence library may contain a strategic transport model, an infrastructure delivery plan, a sustainability appraisal, site-selection assessments, highway authority correspondence, a Local Cycling and Walking Infrastructure Plan and dozens of appendices. It is tempting to respond only to the allocation closest to home. That is understandable, but it is important to also consider whether the plan works as a whole.
A "sound" transport case put forward by a Local Planning Authority in support of a Local Plan should address the following three questions:
does the overall spatial strategy place development where the need to travel can be limited and a genuine choice of transport modes can be offered?
do the transport policies contain clear, effective and deliverable requirements?
can each allocation actually be accessed, served and mitigated without unacceptable safety consequences or severe residual cumulative impacts?
A robust Local Plan representation, or objection, will often need to consider all three questions or areas of investigation and determine whether or not the transport aspects of the emerging Local Plan can be found "sound".
This is the stage at which the authority still has choices. Once land has been allocated, the principle and broad scale of development have been established through the development plan.
A later planning application can refine access, layout and mitigation, but it is generally too late to argue that an allocated site should never have formed part of the strategy.
That is why early, evidence-led participation matters.
Understanding the Local Plan Process: Two Systems Running in Parallel
In 2026, an authority may be finalising a Local Plan under the familiar legacy system or starting one under the new system introduced on 25 March 2026. The two systems use different terminology and offer different consultation opportunities, so the first task is to determine which applies to the plan you are concerned about. Check the authority's timetable and consultation notice: do not assume.
The Legacy System
Authorities already some way through preparing their Local Plan can remain in the legacy system, provided the plan is submitted by 31 December 2026. The broad sequence is as follows:
Regulation 18 consultation: the authority gathers evidence and invites early views on issues and options.
Regulation 19 publication: the authority publishes the plan it intends to submit. This is the critical stage. Representations at this stage should explain whether the plan is legally compliant and sound, and state the required change.
Submission and examination: an independent Inspector assesses legal compliance and the four tests of soundness, based on written representations and, where requested, hearing sessions.
Adoption: if the plan is found sound, or can be made sound through main modifications, the authority adopts it.
If you object at the Regulation 19 stage and request a change, you have a legal right to be heard at the examination.
The New System: the 30-Month Process
The new system is intended to bring problems to light earlier, before they become entrenched at a preferred site or within a fixed evidence base. It runs to a 30-month timetable, measured from the point the authority passes 'Gateway 1', and includes three mandatory checkpoints:
Getting ready: the authority gives at least four months' notice of plan-making, and begins gathering baseline evidence and running a scoping consultation. This is a good early opportunity to flag missing data or a flawed methodology.
Gateway 1: the authority publishes a self-assessment of its readiness. This marks month 1 of the 30-month process.
Consultation on proposed plan content and evidence (at least six weeks): covers the draft vision, spatial strategy and supporting evidence. This is an important opportunity to challenge the analytical framework before site choices are finalised.
Gateway 2: the Planning Inspectorate reviews progress and emerging soundness issues.
Consultation on the proposed Local Plan (at least eight weeks): the authority publishes the full plan, site allocations and supporting evidence. Representations should be drafted as if for examination, identifying any soundness or compliance failure and the modification sought.
Gateway 3 and submission: the Planning Inspectorate checks that the plan is ready for examination.
Examination and adoption: as under the legacy system, an Inspector examines the plan's soundness before it can be adopted.
The safest approach under the new system is the same as under the old one: make written representations at each stage, and ensure that you make your full case in writing at the final consultation before Gateway 3. At that time you should state clearly whether you wish to take part in a hearing.
When Should You Object?
You can and should get involved at more than one stage, because early and final representations serve different purposes.
Early consultations are your chance to influence the overall strategy and the proposed site allocations. The authority can still revise its options, commission any missing evidence, or change its methodology at this stage.
This is the time to flag a flawed spatial strategy, a flawed transport evidence base or model, over-optimistic sustainable transport strategies, or unrealistic site accessibility assessments.
A concise early representation creates a useful record: when the final plan is published, you can point to whether the authority engaged with the issue.
The final consultation before submission is your opportunity to make your formal case, in full, for examination. Do not assume that an earlier petition, letter to a councillor, or comment made at an earlier stage will be carried forward automatically. Resubmit your case in full, in the correct form, by the stated deadline, and keep a copy of everything you send.
When Should You Raise Concerns About a Particular Site?
The same early-and-final pattern applies to an individual site allocation that concerns you.
Raise it as soon as the site appears as an option, not only when it becomes the preferred choice. Under the legacy system, that means engaging under Regulation 18. Under the new system, it means engaging during the consultation on proposed plan content and evidence, before the authority narrows to specific allocations. At this stage, the authority can still drop a site, test an alternative, or commission missing evidence.
Do not wait for a site to become 'preferred' if the defect is already obvious. If the site is in an unsustainable location, access appears constrained, or the site clearly depends on a junction improvement or other highway works with no funding in sight, say so early. This creates a record that the authority engaged with the issue.
Object again at the final consultation, whichever system applies. This is the version that goes to examination, and it is the stage that gives you the legal right to be heard. An earlier comment does not carry forward automatically.
Do not wait until the planning application stage. Once a site is allocated, the principle and broad scale of development are already settled. A later application can refine access and mitigation, but arguing that the site should never have been allocated is generally too late.
Key Transport and Highway Grounds for Objection
The key grounds for objecting to a Local Plan on transport and highway grounds are likely to be:
Sustainable Location and Accessibility
Is the proposed pattern of growth located so that people have a genuine choice of walking, cycling and public transport, or will it create car-dependent development? Test actual walking and cycling routes, not circles on a map, and consider severance, lighting, personal security and whether destinations can be reached throughout the day. A bus stop within reach is of limited value if the service is infrequent or does not go where people need to travel.
Whether the 'Vision' is Credible
Authorities are now expected to adopt a vision-led approach to transport, setting ambitious targets for walking, cycling and public transport use. A credible vision requires a baseline, funded interventions, clear responsibilities and a monitoring plan, not just an optimistic target. Consider what has to happen and who is delivering it for the forecast mode shift to actually occur.
The Transport Evidence Base
The transport modelling underpinning the plan should be current, test reasonable alternatives and sensitivities, and cover all proposed allocations without double-counting. The modelling should establish a robust baseline against which the transport implications of proposed allocations can be evaluated.
Any cross-border effects should be explicitly incorporated into the model (see below).
If the evidence is incomplete, out of date, or tested only after sites had effectively already been chosen, you should point this out and explain what this means for the overall "soundness" of the Plan.
Cumulative and Cross-Boundary Impacts
Traffic does not respect administrative boundaries. Check whether the evidence accounts for the combined effect of the plan, committed development, and growth in neighbouring authorities, particularly on shared corridors, town centres, and Strategic Road Network junctions.
Highway Safety and Capacity
The National Planning Policy Framework (NPPF) says that development should only be resisted on highway grounds where there would be an unacceptable safety impact, or where the residual cumulative impact on the network, after mitigation, would be severe. That is a high threshold, but congestion, queuing, and safety at specific junctions or crossings are still worth setting out in detail, with evidence, rather than as a general assertion that 'the roads are busy'.
Walking, Wheeling, Cycling and Public Transport
Look at the distances people will actually have to travel, not straight-line distances. The quality of the route also influences the likely uptake of sustainable modes of travel. Look for missing footways, steep gradients, uncontrolled crossings and indirect routes, and whether public transport is realistically usable by destination, frequency and operating hours, not just proximity to a stop or station.
Infrastructure, Funding and Phasing
A list of desirable schemes is not a delivery strategy. Each critical measure needs a cost, a funding source, a delivery body and a trigger linked to occupation. Be wary of mitigation described only as 'subject to further assessment' or 'where viable', as this can defer the very question that needs answering to establish soundness.
Frame your objection or representation around legal compliance and soundness
An examination is not a referendum on whether a site is popular. The Inspector asks two separate questions: is the Local Plan "legally compliant", i.e. has the authority followed the required procedure, and is the plan "sound"?
The National Planning Policy Framework sets four tests of soundness, each asking something different:
Positively prepared: does the strategy try to meet the area's own assessed needs, working with neighbouring authorities where those needs cross boundaries, in a way that supports sustainable development?
In practice, this asks whether the plan has actually grappled with the overall scale of need, rather than understating it or leaving gaps to be resolved at some future date.
Justified: is this an appropriate strategy, taking into account the reasonable alternatives? Is the strategy backed by evidence that is proportionate to the decision being made?
In practice, this asks whether other options were seriously tested, or whether one preferred strategy was assumed from the outset and the evidence built around it afterwards.
Effective: can the plan actually be delivered over its full period, and does it deal properly with strategic matters that cross local authority boundaries, through genuine joint working, rather than deferring them to be resolved at some future date?
In practice, this asks whether the infrastructure, funding and delivery mechanism behind each allocation are real, not aspirational.
Consistent with national policy: does the plan enable sustainable development in accordance with the policies in the National Planning Policy Framework (NPPF) and other statements of national policy, where relevant?
In practice, this asks whether the plan's approach to issues such as transport, climate and design follows through on national policy rather than simply referencing it.
Transport objections will normally have to be considered against one or more of the four tests.
Legal compliance involves checking to ensure that the Local Plan meets all the relevant legislative requirements. It may concern consultation, the environmental assessment, the prescribed process, or whether the authority has properly considered alternatives and cross-boundary matters. Legal points should be made carefully; disagreement with the conclusion is not, by itself, proof of procedural unlawfulness.
How to Present Your Objection
Your representation should have a clear, logical structure.
Identify the plan, the consultation stage, and the policy (or policies) or allocation (or allocations) you are objecting to.
State your conclusions clearly and explain why the plan is unsound or not legally compliant on transport grounds.
Summarise the authority's evidence and assumptions fairly before challenging them.
Set out your evidence: local knowledge, route audits, bus timetables, collision data, or a technical review of the authority's modelling.
Explain the effect of the defect(s) you have identified. Explain your reasoning clearly.
State the precise change(s) you want, ideally with suggested wording.
At the final consultation stage, clearly state whether you wish to speak at the examination.
Submit through the required channel before the deadline, and keep a complete copy and any acknowledgement.
Common Approaches That Carry Little Weight
An Inspector is not persuaded by the number of objections alone, or by these frequently repeated arguments, unless they are supported by evidence:
"The roads are already busy", without baseline data or forecast effects.
"There will be accidents" without identifying the specific hazard.
"The highway authority has not objected": this is not proof that the plan is sound.
"Public transport is nearby": proximity alone says nothing about frequency or destination.
"A Travel Plan will solve it": ask what physical choices actually change, not just what is promoted.
A petition without a requested change: it shows concern but does not tell the Inspector how to fix the plan.
Objecting only to construction traffic while ignoring the permanent land use the allocation establishes.
Contact Us for Professional Advice
Local Plan evidence bases can be extensive and highly technical, and the new plan-making system adds another layer of process to get right. It is often difficult to identify the arguments most likely to influence the Inspector, and it is easy to miss a deadline in a fast-moving timetable.
If you would like us to review the evidence, explain which system and stage apply to your plan, or prepare a representation on your behalf, please Contact Us.
Authoritative sources and further reading
The following sources may be useful. National policy and guidance should be rechecked when a representation is submitted, particularly during the 2026 transition.
National Planning Policy Framework (December 2024, amended February 2025). See especially paragraphs 16, 24-28, 35-37 and 109-118.
Rollout of the new local plan-making system. Explains the March 2026 commencement, parallel systems and 31 December 2026 legacy submission deadline.
30-month local plan process: an overview. Sets out the new statutory sequence, consultation stages, gateways, examination and adoption.
Transport evidence bases in plan making and decision taking. National Planning Practice Guidance on scope, staging, baseline, scenarios and cumulative transport assessment.
Local plans: the examination process (legacy system). Planning Inspectorate guidance on submission and examination under the legacy route.
Taking part in Local Plan examinations (legacy system). Explains Regulation 19 representations and participation in examination.
Town and Country Planning (Local Planning) (England) Regulations 2026. The regulations underpinning the new plan-making process.
Procedural guide for examinations and gateways under the 2026 Regulations. Planning Inspectorate procedure for Gateway 2, Gateway 3 and examination.
Disclaimer
The content of this article is for general information only. It is not, and should not be taken as, professional advice. If you require any further information in relation to this article, please contact us.
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