Wales: the sustainable transport hierarchy in applications

This article is about Wales. The sustainable transport hierarchy in Planning Policy Wales puts walking and cycling first, then public transport, then ultra low emission vehicles, then other private motor vehicles, and it applies to site selection and to layout design rather than only to the transport chapter of your statement. If your scheme cannot show how it works for people arriving on foot, the hierarchy has already been breached by the time the transport assessment is written.

Welsh practice diverges from England here in a way that catches architects working across the border. The hierarchy is national policy, not advice. Future Wales: The National Plan 2040 forms part of the development plan alongside the adopted local development plan, so section 38(6) of the Planning and Compulsory Purchase Act 2004 bites on both. And the Well-being of Future Generations (Wales) Act 2015 sits behind the whole system, which gives officers a statutory hook for questions about modal shift that an English officer would have to find in a local plan policy.

What the hierarchy requires of a scheme

Applied properly, the hierarchy is a sequence of design decisions rather than a checklist to tick after the layout is fixed.

1. Choose a site where daily needs are reachable on foot or by bicycle
2. Lay out the scheme so that walking and cycling routes are the most direct, overlooked and attractive routes through it
3. Connect to the public transport network, with the stop within a distance people will actually walk
4. Provide for ultra low emission vehicles, including charging infrastructure
5. Then deal with general car parking and servicing

Officers read layouts for this. A cul-de-sac arrangement where the pedestrian route out of the site is a narrow unlit path at the rear while the vehicle route is a wide boulevard will be criticised, whatever the modal split assumptions in the transport chapter say.

The practical test I apply to a drawing: trace the route a ten-year-old would take to the nearest bus stop or school, and ask whether a parent would allow it.

Active travel duties in Wales

The Active Travel (Wales) Act 2013 places duties on local authorities that no English authority carries. They must map existing active travel routes and plan future ones, keep those maps under review, and take reasonable steps to improve the network year on year. Welsh Ministers publish statutory design guidance under the Act.

For an applicant this matters in three ways. The authority's active travel network map is a published document you can design to, so check whether a future route runs through or past your site. Where it does, the expectation is that your scheme delivers that link rather than leaving a gap. And the design standards in the Active Travel Act guidance are the benchmark against which your footways, crossings and cycle tracks will be judged, including widths, gradients and junction treatment.

Schemes that dedicate a strip of land for a future route without building it tend to attract a condition or an obligation requiring construction. Better to design it in and claim the credit.

Transport assessment expectations

Technical Advice Note 18 on transport sets the framework for transport assessments in Wales, covering when one is needed, scoping with the highway authority and what the document contains. Agree the scope in writing before any survey work starts, because retro-fitting an agreed scope after the counts are done is expensive.

A Transport Assessment prepared for a Welsh application should state the hierarchy explicitly and show how each step was tested and either delivered or ruled out with reasons. Where the scheme is smaller, a transport statement with the same logic is usually accepted, and the threshold for which document applies should be settled at scoping rather than assumed.

Note that PlanScope's drafting is grounded in English policy and English local plans, so a Welsh application needs the national policy position checked by your reviewer against Planning Policy Wales and the relevant Technical Advice Notes before submission.

Parking standards and maximum provision

Welsh parking policy has long worked on maximum standards rather than minimum ones, which reverses the instinct of designers used to English county standards expressed as a minimum per dwelling. The policy intent is that parking supply does not undermine the hierarchy.

Two consequences follow for the drawings. Overprovision needs justifying, which is an unfamiliar argument to make. And cycle parking is assessed as seriously as car parking, with the quality of provision mattering as much as the number: covered, secure, at ground level, closer to the door than the car.

Electric vehicle charging provision sits inside the hierarchy at step four rather than being a substitute for the earlier steps. A scheme that offers charging on every space while providing a hostile walking environment has not satisfied the policy.

Where on-street stress is the live issue, survey it. A Parking Survey carried out on agreed nights gives the discussion a factual base, and the methodology should be agreed with the authority in advance.

Bus and rail accessibility evidence

The accessibility case needs numbers that can be checked. State the walking distance to each bus stop and station by the actual route rather than as the crow flies, the services that call there with their published frequency, and the hours over which they run.

Evening and Sunday services are where rural Welsh schemes come unstuck. A site served well between 8am and 6pm on weekdays and not at all after that cannot claim public transport accessibility for shift workers, and an officer who knows the area will say so.

Where the scheme depends on a service improvement, the obligation has to be deliverable. A contribution towards a route that the operator has no intention of running is not mitigation, and committing to it damages credibility on the rest of the case.

Travel plans and monitoring

A travel plan is the mechanism that carries the hierarchy from consent into occupation. The ones that survive scrutiny share a few features: a named coordinator, baseline and target modal shares, a survey programme with dates, a budget, and a remedy if targets are missed.

The Travel Plan document should be drafted so it can be secured by condition or obligation without rewriting. Vague aspirations give the authority no choice but to impose its own wording.

For comparison, the equivalent gateway in Scotland runs through the development hierarchy rather than through transport policy, and the note on the hierarchy of developments in Scotland sets out how that classification works.

Where applications fall short

Four failures recur in Welsh transport chapters.

The hierarchy is cited in a policy list and then ignored in the assessment, so the document never shows the testing that policy requires. Walking distances are measured on a straight line rather than along the route, which inflates accessibility. Parking is justified against English minimum standards that have no application in Wales. And the travel plan is a template with the scheme name changed, containing no targets and no monitoring.

Fix the first of those and the rest usually follow. Write the transport chapter in the order of the hierarchy, step by step, and let the layout evidence the argument.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.