Travel plan or transport statement: what each one does

A transport statement describes what your development will do to the highway network. A travel plan describes what you will do about it, over years, with targets and someone responsible for meeting them. Anyone deciding between a travel plan or transport statement is usually asking the wrong question, because on schemes above the local threshold the highway authority will want both, and they answer different halves of the same objection.

The distinction has a practical edge. A transport statement is finished when it is submitted. A travel plan starts working on the day the first occupier moves in, and if it is written badly you are still dealing with it five years later.

What each document answers

A Transport Statement sits below a full Transport Assessment in scale rather than in kind. The Planning Practice Guidance describes a statement as the simpler document for proposals with moderate transport implications, and an assessment as the fuller analysis where the implications are greater.

Trip generation evidence in a transport statement

The arithmetic at the heart of a statement is the same whatever its length.

Establish the existing lawful use and the trips it generates or could generate. Establish the proposed use and its trips. Take the difference. Present the net figure, because a proposal that reduces peak hour vehicle movements is a completely different conversation from one that adds them, and the approach to a net trip generation table for a change of use is worth following exactly.

Trip rates normally come from the TRICS database, and the site selection behind them is where most disputes start. A highway officer will ask which sites you used, why, how many, their location type, and whether the sample includes anything that does not resemble your proposal. Set the selection criteria out in the statement rather than in an appendix nobody opens.

Two habits save arguments. Show the multi-modal rates alongside the vehicle ones, because the travel plan targets will later be set against modal share. And state the survey years of the TRICS sites, since retail and office trip rates from a decade ago do not describe current behaviour.

If the access is onto or near a trunk road or motorway junction, settle early whether the strategic road network is engaged, because that brings a different consultee with different expectations into the process.

Targets and monitoring in a travel plan

A travel plan has four working parts. Measures, targets, monitoring, and remedial action. Most weak plans have the first and a version of the second.

Measures are the things you will do. Cycle parking at a stated number and standard, a welcome pack, subsidised public transport for a defined period, a car club bay, a travel plan coordinator with named responsibilities, real time information displays. Each needs a delivery trigger, usually tied to occupation.

Targets are the numbers you are promising. They have to be expressed as modal share or as vehicle trips per unit, with a baseline and a date. A target to "encourage sustainable travel" is not a target and a highway authority will say so.

Monitoring is how the target is tested, and it is almost always a travel survey of occupiers at set intervals after occupation, with a stated minimum response rate. Specify the survey method now, because arguing about methodology at year three, when the result is unwelcome, is a poor use of everyone's time.

Remedial action is what happens on failure. Honest plans name the additional measures that will be funded and the mechanism for triggering them. Vague plans say the parties will meet to discuss, which is how a monitoring fee turns into a five year argument.

Thresholds that trigger each

National guidance sets no fixed numerical threshold. Local validation lists and highway authority standards do, and they differ between neighbouring authorities more than people expect.

As a working rule, the thresholds PlanScope uses to flag documents put a transport assessment in play at around 50 or more dwellings or 2,500 square metres or more of floorspace, with a statement below that and above the point where the highway effects are more than negligible. Councils' own validation lists and national policy thresholds take precedence over any rule of thumb, and a five minute call to the highway authority settles it.

Scale brings other consultees. Active Travel England is a statutory consultee on larger applications, with the threshold set by reference to dwelling numbers, floorspace and site area, so check the current figures before assuming a scheme sits below it. Its interest is in walking and cycling provision, which means the travel plan and the site layout get read together.

Securing a travel plan by condition or obligation

A condition can require a travel plan to be submitted and approved before occupation, and can require it to be implemented. What a condition cannot do is require a payment.

That is why monitoring fees are almost always secured through a section 106 agreement. The obligation typically covers the fee, the survey intervals, the remedial measures fund if there is one, and occasionally a bond that is returned if targets are met.

Read the drafting carefully on three points. Whether the monitoring period runs from first occupation or full occupation, which on a phased scheme can differ by years. Whether the remedial measures are capped. And whether failure to meet a target triggers an obligation to spend, or only an obligation to review.

Agreeing the scope up front avoids most of this, and the discipline described for agreeing a transport assessment scoping note works just as well for a travel plan framework.

Writing targets that can actually be measured

An illustrative example. A hypothetical 80 dwelling scheme on the edge of a market town, with a bus stop 200 metres from the site entrance and a signed cycle route into the centre.

A measurable target: reduce single occupancy car trips in the weekday morning peak from the TRICS derived baseline by 10 per cent by the end of year five, tested by an occupier travel survey achieving at least a 30 per cent response rate, carried out in the same month each survey year. Illustrative figures, and the actual numbers would be negotiated with the highway authority.

An unmeasurable target: promote the use of the bus service and encourage cycling.

The difference is whether anyone can tell, five years on, if the plan worked. Interim or framework plans for outline permissions and unknown occupiers face the same test, and they should fix the method even where they cannot yet fix the number. The Travel Plan document itself is short. The thinking behind the targets is not.

Where both are required, and the order to do them

Do the transport statement first, because the travel plan targets should be derived from its trip generation work rather than invented separately. Then draft the travel plan with the modal share baseline taken from the same TRICS output.

If the two documents contain different baseline numbers, the highway authority will notice, and the credibility of both takes the hit.

One honest uncertainty. Travel plan monitoring is inconsistently enforced across authorities, and it is tempting to treat the plan as a formality because of that. Schemes that do tend to find out at the next application on the same site, when the officer asks what happened to the last travel plan.

This is general guidance, not legal advice. Check the position with your local planning authority or a qualified transport planner before relying on it.

Enter your postcode on PlanScope to see which transport documents your scheme is likely to need. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.