What a highway officer reads first in a Transport Statement

A highway officer reading a transport statement for a five-house scheme looks at three things before anything else: whether the access can achieve the required visibility, where the trip numbers came from, and whether the parking meets the adopted standard. If those three are answered with measurements and sources, the consultation response is usually a set of conditions. If any of them is asserted rather than evidenced, the response is a holding objection and four weeks disappear.

Everything else in the document matters less than people assume. Officers rarely read the policy section.

The three things checked before anything else

Visibility at the access, because a substandard splay is the one issue that supports a refusal on highway safety grounds on its own. Trip generation, because it sets the scale of everything that follows. Parking count against the adopted standard, because a shortfall produces overspill and overspill produces objections.

Put all three on the first page. A short summary table giving the proposed access width, the X and Y visibility distances achieved, the measured speeds they are based on, the net change in vehicle trips in each peak hour, and the parking provided against the standard, lets the officer check the scheme in ninety seconds. Bury those figures in appendices and they will read the appendices first anyway, with less goodwill.

A Transport Statement is a proportionate document for a minor scheme. It does not need junction modelling, and including modelling the scheme does not warrant tends to invite questions rather than answer them.

Visibility splays and the speed survey behind them

The splay is defined by two dimensions. The X distance is measured back from the edge of the carriageway along the centre line of the access, conventionally 2.4 metres, reduced only on very lightly trafficked accesses. The Y distance runs along the carriageway in each direction and equals the stopping sight distance for the speed of traffic on that road.

The point officers check, and the one that catches out most submissions, is which speed was used. Stopping sight distance derives from actual vehicle speeds, not from the posted speed limit. Manual for Streets sets out the relationship, and on a road where the limit is 30 miles per hour but traffic runs at 36, the required Y distance is longer than the value for 30.

So commission a speed survey where the splay is tight. A seven-day automatic traffic count, positioned clear of junctions and away from any parked car that would suppress speeds, giving 85th percentile wet weather speeds in each direction, is what a highway authority accepts. Then draw the splay on a plan to scale, over the actual boundary, showing hedges, walls, poles and parked cars. State what has to be removed and who owns it, because a splay that crosses land you do not control is not deliverable.

Height matters too. The splay must be clear between the driver's eye height and the object height the standard specifies, so a 900 millimetre wall inside the splay defeats it.

Access geometry and swept paths

Then the geometry, which is checked against the highway authority's own design guide rather than against national guidance alone.

Include swept path drawings for the largest vehicle that will regularly use the access, which on a residential scheme is the refuse vehicle rather than a car. Where the refuse vehicle cannot enter, show the collection point and the carry distance instead, and check that distance against the council's own limit. Construction traffic is a separate question, usually dealt with by condition through a Construction Traffic Management Plan.

Gates are worth a sentence. A gate opening outwards over a footway, or set on the back edge of the highway with no standing area, gets objected to every time.

Trip numbers and their source

Give the net change, not the gross figure. A scheme replacing a builder's yard with four houses may reduce peak hour movements, and saying so in the first paragraph reframes the whole consultation.

State where the rates came from. If a trip rate database was used, give the database, the date of the query, every filter applied and the number of sites retained, and put the output in an appendix. If the numbers were derived from first principles, say what the assumptions were: dwellings, occupancy, car ownership from census data for the relevant area, and the proportion of trips in the peak hour.

For very small schemes, an honest statement that the development generates a handful of movements in the peak hour and that the change is within daily variation on the adjoining road is often enough. Officers accept that where the arithmetic is shown. They do not accept a conclusion with no arithmetic behind it. Where a fuller analysis is needed, the threshold for moving to a Transport Assessment is set by the highway authority and by the scale of the scheme.

Parking provision against the standard

Find the adopted standard before designing the layout, and note whether it is expressed as a maximum or a minimum, because the two lead to opposite conclusions. State the provision per dwelling by bedroom count, the visitor spaces, the accessible spaces and the dimensions of each bay.

Two additions are now routine. Electric vehicle charge points for new dwellings with associated parking are a Building Regulations requirement under the relevant approved document, and councils frequently condition them as well. Cycle parking has to be usable, covered, secure and accessible without carrying a bicycle through the house.

Where provision falls below the standard, evidence it rather than arguing it. Observed on-street parking accumulation in the surrounding streets during the relevant overnight and evening periods, recorded through a Parking Survey with a stated survey area and dates, is what answers an overspill objection.

Cycle and refuse storage detail

These get checked because they are where a layout quietly fails. Cycle storage shown as a shed in a rear garden reached through the house will not be used. A bin store 40 metres from the collection point in a council with a 25 metre limit will attract an objection from the waste team that the highway officer then repeats.

Show both on the layout with dimensions, give the container capacity against the council's standard, and mark the collection point and the carry route. It takes a paragraph and it removes two consultation responses.

Responding to a highways objection

Get the actual reason first, in writing, from the highways consultation response rather than from the case officer's summary. Objections usually rest on one of four things: the splay, the geometry, the trip numbers or the parking count.

Then respond proportionately. Offer a speed survey where the splay is disputed. Offer a swept path drawing where geometry is disputed. Offer a revised layout where parking is short, or the survey evidence where it is not. Offer conditions where the issue is detail rather than principle, and where off-site highway works are needed, confirm that a highway agreement under section 278 of the Highways Act 1980 is accepted in principle.

Remember what the policy test actually is. National policy provides that development should only be prevented or refused on highways grounds where there would be an unacceptable impact on highway safety, or the residual cumulative impacts on the road network would be severe. The highway authority is a consultee, and its objection is a material consideration rather than a veto. Saying so politely, with the evidence attached, is how minor schemes get recommended for approval over a holding objection.

Enter your postcode on PlanScope to see whether your scheme needs a transport statement, a parking survey or both.

This is general guidance, not legal advice. Check the position with your local highway authority or a qualified transport planner 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.