A-road
A354 traffic and collisions
The A354 is an A-road of 48.2 miles, from Wiltshire to Dorset. This page covers its traffic at 16 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 196m vehicle miles
- Average daily traffic 11,144 vehicles a day, both directions
- Busiest section 30,414 A35 to Jurassic Roundabout
- HGV share 2.7% of vehicle miles
- Traffic since 2019 +0.5% same count points
- Collisions, 2021 to 2025 284 30.7 per 100m vehicle miles
How busy is the A354?
On an average day in 2025, 11,144 vehicles passed each point on the A354, counting both directions. The busiest section is A35 to Jurassic Roundabout (Dorset), with 30,414 a day; the quietest listed is A35(T) to A350, with 6,402.
Busiest sections, 2025
A35 to Jurassic Roundabout carries 2.7 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A35 to Jurassic Roundabout Dorset · 3.7 mi · HGVs 2.4% | 30,414 |
| A350 Blandford Bypass (roundabout) to A350 (roundabout) Dorset · 1.7 mi · HGVs 3.9% | 21,465 |
| Whitehead Drive, Weymouh to Victoria Square Dorset · 2.2 mi · HGVs 2.2% | 19,190 |
| Jurassic Roundabout to A353 Westham Roundabout Dorset · 3.5 mi · HGVs 1.7% | 17,802 |
| B3157 Foord's Corner Roundabout to Whitehead Drive roundabout Dorset · 0.7 mi · HGVs 2.3% | 16,740 |
| Harbour Roundabout to B3157 Foord's Corner Roundabout Dorset · 1.3 mi · HGVs 1.9% | 11,329 |
| Victoria Square to High Street Dorset · 0.6 mi · HGVs 1.7% | 7,991 |
| High Street to Easton Square Dorset · 1.4 mi · HGVs 3.0% | 7,873 |
| Andrews Way, Salisbury to B3081 Handley Cross Roundabout Wiltshire, Hampshire, Dorset · 11.4 mi · HGVs 3.1% | 7,710 |
| B3081 Handley Cross Roundabout to A350 Blandford Bypass (roundabout) Dorset · 9.3 mi · HGVs 3.6% | 7,288 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Wiltshire to Dorset · 48.2 miles
A354 traffic and collisions by section
13 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 1 short link roads and spurs (0.5 miles) count in the road’s totals but are not listed.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | Andrews Way to A338Wiltshire | 9,622 | fewer than 3 |
| 2 | Andrews Way, Salisbury to B3081 Handley Cross RoundaboutWiltshire, Hampshire, Dorset | 7,710 | 42 |
| 3 | B3081 Handley Cross Roundabout to A350 Blandford Bypass (roundabout)Dorset | 7,288 | 28 |
| 4 | A350 Blandford Bypass (roundabout) to A350 (roundabout)Dorset | 21,465 | 15 |
| 5 | A35(T) to A350Dorset | 6,402 | 33 |
| 6 | A35 to Jurassic RoundaboutDorset | 30,414 | 54 |
| 7 | Jurassic Roundabout to A353 Westham RoundaboutDorset | 17,802 | 23 |
| 8 | A353 Westham Roundabout to Harbour RoundaboutDorset | 17,394 | 5 |
| 9 | Harbour Roundabout to B3157 Foord's Corner RoundaboutDorset | 11,329 | 23 |
| 10 | B3157 Foord's Corner Roundabout to Whitehead Drive roundaboutDorset | 16,740 | 11 |
| 11 | Whitehead Drive, Weymouh to Victoria SquareDorset | 19,190 | 26 |
| 12 | Victoria Square to High StreetDorset | 7,991 | 6 |
| 13 | High Street to Easton SquareDorset | 7,873 | 16 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A354 as the first road, placed on the nearest section by their recorded position; rates (per 100 million vehicle miles) are shown for sections of half a mile or more with 10 or more.
A354 traffic by vehicle type
Cars and taxis make up 77.8% of the vehicle miles on the A354. HGVs account for 2.7%, rising to 3.9% on A350 Blandford Bypass (roundabout) to A350 (roundabout).
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 4.3% |
| 2001 | 4.0% |
| 2002 | 3.9% |
| 2003 | 3.8% |
| 2004 | 3.7% |
| 2005 | 3.8% |
| 2006 | 3.7% |
| 2007 | 3.7% |
| 2008 | 3.6% |
| 2009 | 3.3% |
| 2010 | 3.4% |
| 2011 | 3.5% |
| 2012 | 3.5% |
| 2013 | 3.1% |
| 2014 | 3.1% |
| 2015 | 3.2% |
| 2016 | 3.3% |
| 2017 | 3.4% |
| 2018 | 3.0% |
| 2019 | 3.0% |
| 2020 | 3.5% |
| 2021 | 3.3% |
| 2022 | 3.2% |
| 2023 | 3.0% |
| 2024 | 2.8% |
| 2025 | 2.7% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A354 traffic trend
Traffic on the A354 came to 196 million vehicle miles in 2025. At the count points present in both years, it is up 0.5% on 2019, before the pandemic, and up 4.6% on 2015.
Vehicle miles a year
Like for like, traffic is up 7.5% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 171m |
| 2001 | 173m |
| 2002 | 183m |
| 2003 | 184m |
| 2004 | 192m |
| 2005 | 193m |
| 2006 | 196m |
| 2007 | 197m |
| 2008 | 191m |
| 2009 | 187m |
| 2010 | 176m |
| 2011 | 165m |
| 2012 | 164m |
| 2013 | 190m |
| 2014 | 192m |
| 2015 | 190m |
| 2016 | 193m |
| 2017 | 185m |
| 2018 | 183m |
| 2019 | 193m |
| 2020 | 146m |
| 2021 | 165m |
| 2022 | 184m |
| 2023 | 188m |
| 2024 | 192m |
| 2025 | 196m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 9,840 |
| 2001 | 9,956 |
| 2002 | 10,527 |
| 2003 | 10,565 |
| 2004 | 11,028 |
| 2005 | 11,061 |
| 2006 | 11,254 |
| 2007 | 11,296 |
| 2008 | 10,957 |
| 2009 | 10,757 |
| 2010 | 10,084 |
| 2011 | 9,568 |
| 2012 | 9,541 |
| 2013 | 11,022 |
| 2014 | 11,192 |
| 2015 | 11,059 |
| 2016 | 11,220 |
| 2017 | 10,755 |
| 2018 | 10,646 |
| 2019 | 11,034 |
| 2020 | 8,334 |
| 2021 | 9,461 |
| 2022 | 10,515 |
| 2023 | 10,736 |
| 2024 | 10,986 |
| 2025 | 11,144 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
The chart counts the whole road as it was each year, so new or renumbered stretches move it. The percentage changes compare only count points present in both years. In 2025, 3 of the 16 count points were counted; DfT estimated the rest from earlier counts and local trends.
A354 collisions
Police recorded 284 collisions with the A354 as the first road from 2021 to 2025, 87 of them fatal or serious, including 7 fatal. That is 30.7 per 100 million vehicle miles, close to the 31.5 for all A-roads in Great Britain. On average there were 1.2 a year for each mile of road.
Reported collisions by year
Up 26.1% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 28 | 18 |
| 2022 | 44 | 22 |
| 2023 | 31 | 12 |
| 2024 | 56 | 15 |
| 2025 | 37 | 21 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
Sections with the highest collision rates
Per 100 million vehicle miles, 2021 to 2025. Sections of half a mile or more with 10 or more collisions.
| Section | Per 100m vehicle miles |
|---|---|
| Jurassic Roundabout to A353 Westham Roundabout Dorset · 23 collisions | 101.1 |
| Harbour Roundabout to B3157 Foord's Corner Roundabout Dorset · 23 collisions | 92.6 |
| High Street to Easton Square Dorset · 16 collisions | 82.7 |
| B3157 Foord's Corner Roundabout to Whitehead Drive roundabout Dorset · 11 collisions | 53.1 |
| Whitehead Drive, Weymouh to Victoria Square Dorset · 26 collisions | 33.7 |
| Andrews Way, Salisbury to B3081 Handley Cross Roundabout Wiltshire, Hampshire, Dorset · 42 collisions | 28.2 |
| A35 to Jurassic Roundabout Dorset · 54 collisions | 28.1 |
| A35(T) to A350 Dorset · 33 collisions | 26.5 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 9 collisions were recorded at junctions where the A354 was the second road; they are not in the figures above. Fatal or serious uses DfT’s adjusted serious figures. How we count collisions
Council areas on the A354
In route order. Each is the highway authority DfT files the count points under.
- Wiltshire
- Hampshire
- Dorset
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| Traffic counts and vehicle mix | Road traffic statistics (AADF by count point) Department for Transport Derived statistics UK Motoring | 2000 to 2025 | 16 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 284 reported collisions | 15 September 2026 |
- Annual average daily flow (AADF) is the average number of vehicles passing a point on a typical day of the year, both directions combined.
- Vehicle miles are AADF multiplied by link length and 365, summed over every count point link on the road.
- Sections join count point links between junctions, using the link lines in DfT’s major road database.
- STATS19 covers personal injury collisions reported to the police. Damage-only collisions are not included, and not every injury collision is reported.
- Serious and slight figures are DfT’s adjusted estimates, which allow for police forces moving to injury-based reporting.
- Counts of one or two collisions below Great Britain level are shown as “fewer than 3”.
Contains public sector information licensed under the Open Government Licence v3.0.