How the scores work

Methodology

How connectivity scores are produced, what they mean, and where they fall short. Every number on Sweetstep comes with a source, a method, and an honest caveat.

What this tool measures

Sweetstep displays scores from the DfT Connectivity Metric 2025 (published — not formally designated as National Statistics), produced by the Department for Transport, covering England and Wales. It is not yet formally published as official statistics.

The metric measures travel-time accessibility to six destination types via four transport modes:

Destination	Transport modes
Employment	Walking · Cycling · Public transport · Driving
Education	Walking · Cycling · Public transport · Driving
Healthcare	Walking · Cycling · Public transport · Driving
Shopping	Walking · Cycling · Public transport · Driving
Leisure & Community	Walking · Cycling · Public transport · Driving
Residential	Walking · Cycling · Public transport · Driving

Current release covers England & Wales (188,880 Output Areas). Scotland and Northern Ireland use different methodologies — see Data coverage below.

How scores work

Score grades

Sweetstep groups scores into four display grades. These thresholds are display conventions chosen by Sweetstep — they are not defined or endorsed by the Department for Transport.

Excellent

Score ≥ 80

Top fifth nationally. Almost everything you need is within easy reach by foot, bike, or bus.

Good

Score 60 – 79

Above the national median. Most everyday services are reachable without a car.

Moderate

Score 40 – 59

Around or slightly below the median. Some journeys — especially to jobs or healthcare — may need a car or longer trip.

Limited

Score < 40

Bottom third nationally. Most essential services are difficult to reach without a car.

Risk flags

Geographic units

Scores are assigned at the Output Area (OA) level — the smallest census geography in England and Wales, typically covering around 300 residents.

One OA may contain multiple postcodes; one postcode maps to exactly one OA. OA codes (e.g. E00012345) have no recognisable place names — this is an inherent limitation of the geographic unit.

Limitations

Modelled, not measured: Scores represent theoretical travel-time accessibility, not observed journey behaviour. An area may score well but have low actual trip rates.

Relative scoring: The national median is anchored at 50. A change to the underlying dataset shifts all scores, not just affected areas.

Publication status: This dataset is published but not formally designated as National Statistics by the UK Statistics Authority.

Snapshot in time: Scores reflect transport infrastructure at the time of data collection. New services, route closures, and station openings are not captured.

Geographic opacity: Output Area codes have no recognisable names. The tool maps postcodes to OAs but cannot guarantee a single postcode represents the full range of connectivity within that OA.

Cross-nation incompatibility: Scotland and Northern Ireland use different methodologies and score scales. Direct comparison with England and Wales scores is not valid.

Data coverage

Nation	Score type	Modes	Status
England & Wales	0–100 index	Walking, Cycling, PT, Driving	Live
Scotland	Travel time (mins)	Drive, PT only	Pending
Northern Ireland	Drive-time index	Drive only	Pending

Replicability

The source dataset is publicly available from the Department for Transport under the Open Government Licence v3.0.