A-road
A350 traffic and collisions
The A350 is an A-road of 65.5 miles, from Wiltshire to Bournemouth, Christchurch and Poole. This page covers its traffic at 37 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 372m vehicle miles
- Average daily traffic 15,539 vehicles a day, both directions
- Busiest section 51,816 A35 Creekmoor Junction to A3049 / A350 (roundabout)
- HGV share 5.6% of vehicle miles
- Traffic since 2019 +2.4% same count points
- Collisions, 2021 to 2025 445 25.7 per 100m vehicle miles
How busy is the A350?
On an average day in 2025, 15,539 vehicles passed each point on the A350, counting both directions. The busiest section is A35 Creekmoor Junction to A3049 / A350 (roundabout) (Bournemouth, Christchurch and Poole), with 51,816 a day; the quietest listed is A30 Royal Chase Roundabout to A357 Junction, with 4,245.
Busiest sections, 2025
A35 Creekmoor Junction to A3049 / A350 (roundabout) carries 3.3 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A35 Creekmoor Junction to A3049 / A350 (roundabout) Bournemouth, Christchurch and Poole · 1.1 mi · HGVs 2.0% | 51,816 |
| B4158 to M4 Jn 17 Wiltshire · 3.0 mi · HGVs 5.9% | 35,011 |
| A349 Broadstone Way to A350 Holes Bay Road/Towngate Bridge (roundanbout) Bournemouth, Christchurch and Poole · 1.1 mi · HGVs 2.0% | 32,121 |
| M4 Jn 17 to A420 Wiltshire · 1.2 mi · HGVs 6.7% | 29,653 |
| A365 to A361 Wiltshire · 1.7 mi · HGVs 6.0% | 27,893 |
| A420 to A4 Wiltshire · 1.6 mi · HGVs 5.5% | 27,847 |
| B3107 to A365 Wiltshire · 0.9 mi · HGVs 6.3% | 27,216 |
| Dolphin Centre Roundabout to A35 Sandbanks Road Bournemouth, Christchurch and Poole · 0.9 mi · HGVs 1.0% | 21,880 |
| A363 to Rothe Rise Wiltshire · 2.5 mi · HGVs 4.7% | 20,394 |
| The Mead roundabout to A3098 Wiltshire · 0.9 mi · HGVs 4.0% | 19,784 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Wiltshire to Bournemouth, Christchurch and Poole · 65.5 miles
A350 traffic and collisions by section
31 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 5 short link roads and spurs (2.0 miles) count in the road’s totals but are not listed.
Show all 31 sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | B4158 to M4 Jn 17Wiltshire | 35,011 | 26 |
| 2 | M4 Jn 17 to A420Wiltshire | 29,653 | 16 |
| 3 | A420 to A4Wiltshire | 27,847 | 17 |
| 4 | A4 to A350Wiltshire | 14,356 | 7 |
| 5 | Avon Rd, Melksham to A350 By-pass RoundaboutWiltshire | 19,584 | 39 |
| 6 | Avon Rd to A365Wiltshire | 21,738 | 9 |
| 7 | A365 to B3107Wiltshire | 34,447 | 6 |
| 8 | B3107 to A365Wiltshire | 27,216 | 13 |
| 9 | A365 to A350Wiltshire | 28,323 | fewer than 3 |
| 10 | A365 to A361Wiltshire | 27,893 | 22 |
| 11 | A350 to A363Wiltshire | 16,119 | 37 |
| 12 | A363 to The Mead roundaboutWiltshire | 15,907 | 14 |
| 13 | The Mead roundabout to A3098Wiltshire | 19,784 | 7 |
| 14 | A3098 to A363Wiltshire | 14,650 | 3 |
| 15 | A363 to Rothe RiseWiltshire | 20,394 | 12 |
| 16 | A36 to B3095Wiltshire | 12,991 | 14 |
| 17 | B3095 to A303 feederWiltshire | 8,512 | 19 |
| 18 | A303 feeder to B3089 EWiltshire | 8,554 | 4 |
| 19 | Railway Bridge to B3089Wiltshire | 9,692 | 17 |
| 20 | C- road to Knapp's Hill to A30Wiltshire, Dorset | 11,673 | 19 |
| 21 | A30 Royal Chase Roundabout to A357 JunctionDorset | 4,245 | 11 |
| 22 | A357 Junction to A354 Salisbury Road (roundabout)Dorset | 9,627 | 4 |
| 23 | B3075 Junction to A354 Blandford Bypass (roundabout)Dorset | 12,571 | 7 |
| 24 | A31 to B3075Dorset | 9,829 | 17 |
| 25 | A31 (roundabout) to C5 Wareham Road JunctionDorset | 12,031 | 17 |
| 26 | C5 Wareham Road Junction to A35 / B3068 roundaboutDorset | 18,534 | 14 |
| 27 | A35 Creekmoor Junction to A3049 / A350 (roundabout)Bournemouth, Christchurch and Poole | 51,816 | 6 |
| 28 | A3049 / A350 (roundabout) to A349 Broadstone WayBournemouth, Christchurch and Poole | 25,394 | 19 |
| 29 | A349 Broadstone Way to A350 Holes Bay Road/Towngate Bridge (roundanbout)Bournemouth, Christchurch and Poole | 32,121 | 13 |
| 30 | A350 Holes Bay Road/Towngate Bridge (roundanbout) to Dolphin Centre RoundaboutBournemouth, Christchurch and Poole | 29,242 | 3 |
| 31 | Dolphin Centre Roundabout to A35 Sandbanks RoadBournemouth, Christchurch and Poole | 21,880 | 12 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A350 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.
A350 traffic by vehicle type
Cars and taxis make up 75.8% of the vehicle miles on the A350. HGVs account for 5.6%, rising to 11.4% on A4 to A350.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 7.7% |
| 2001 | 7.0% |
| 2002 | 6.9% |
| 2003 | 7.2% |
| 2004 | 7.3% |
| 2005 | 6.5% |
| 2006 | 6.2% |
| 2007 | 6.2% |
| 2008 | 6.3% |
| 2009 | 5.5% |
| 2010 | 5.3% |
| 2011 | 5.4% |
| 2012 | 5.2% |
| 2013 | 5.3% |
| 2014 | 5.3% |
| 2015 | 5.6% |
| 2016 | 5.6% |
| 2017 | 5.6% |
| 2018 | 5.5% |
| 2019 | 5.4% |
| 2020 | 6.5% |
| 2021 | 6.7% |
| 2022 | 6.3% |
| 2023 | 5.9% |
| 2024 | 5.6% |
| 2025 | 5.6% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A350 traffic trend
Traffic on the A350 came to 372 million vehicle miles in 2025. At the count points present in both years, it is up 2.4% on 2019, before the pandemic, and up 7.8% on 2015.
Vehicle miles a year
Like for like, traffic is up 26.5% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 290m |
| 2001 | 312m |
| 2002 | 318m |
| 2003 | 317m |
| 2004 | 315m |
| 2005 | 321m |
| 2006 | 329m |
| 2007 | 332m |
| 2008 | 323m |
| 2009 | 320m |
| 2010 | 321m |
| 2011 | 317m |
| 2012 | 320m |
| 2013 | 321m |
| 2014 | 326m |
| 2015 | 328m |
| 2016 | 334m |
| 2017 | 339m |
| 2018 | 352m |
| 2019 | 363m |
| 2020 | 283m |
| 2021 | 307m |
| 2022 | 339m |
| 2023 | 348m |
| 2024 | 363m |
| 2025 | 372m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 12,353 |
| 2001 | 13,303 |
| 2002 | 13,569 |
| 2003 | 13,544 |
| 2004 | 13,436 |
| 2005 | 13,679 |
| 2006 | 14,033 |
| 2007 | 14,157 |
| 2008 | 13,789 |
| 2009 | 13,640 |
| 2010 | 13,677 |
| 2011 | 13,844 |
| 2012 | 13,800 |
| 2013 | 13,705 |
| 2014 | 13,913 |
| 2015 | 14,019 |
| 2016 | 14,295 |
| 2017 | 14,472 |
| 2018 | 14,866 |
| 2019 | 15,271 |
| 2020 | 11,857 |
| 2021 | 12,891 |
| 2022 | 14,218 |
| 2023 | 14,618 |
| 2024 | 15,209 |
| 2025 | 15,539 |
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, 4 of the 37 count points were counted; DfT estimated the rest from earlier counts and local trends.
A350 collisions
Police recorded 445 collisions with the A350 as the first road from 2021 to 2025, 123 of them fatal or serious. That is 25.7 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 1.4 a year for each mile of road.
Reported collisions by year
Up 19.0% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 61 | 23 |
| 2022 | 60 | 24 |
| 2023 | 67 | 21 |
| 2024 | 64 | 25 |
| 2025 | 70 | 30 |
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 |
|---|---|
| B4158 to M4 Jn 17 Wiltshire · 26 collisions | 67.8 |
| C5 Wareham Road Junction to A35 / B3068 roundabout Dorset · 14 collisions | 54.4 |
| C- road to Knapp's Hill to A30 Wiltshire, Dorset · 19 collisions | 41.1 |
| A36 to B3095 Wiltshire · 14 collisions | 40.0 |
| Dolphin Centre Roundabout to A35 Sandbanks Road Bournemouth, Christchurch and Poole · 12 collisions | 34.7 |
| A31 to B3075 Dorset · 17 collisions | 32.9 |
| A350 to A363 Wiltshire · 37 collisions | 31.8 |
| B3107 to A365 Wiltshire · 13 collisions | 30.4 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 74 collisions were recorded at junctions where the A350 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 A350
In route order. Each is the highway authority DfT files the count points under.
- Wiltshire
- Dorset
- Bournemouth, Christchurch and Poole
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 | 37 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 445 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.