A-road
A4067 traffic and collisions
The A4067 is an A-road of 36.2 miles, from Powys to Swansea. This page covers its traffic at 12 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 184m vehicle miles
- Average daily traffic 13,900 vehicles a day, both directions
- Busiest section 39,651 M4 jn45 to A4217
- HGV share 1.8% of vehicle miles
- Traffic since 2019 −2.1% same count points
- Collisions, 2021 to 2025 102 12.2 per 100m vehicle miles
How busy is the A4067?
On an average day in 2025, 13,900 vehicles passed each point on the A4067, counting both directions. The busiest section is M4 jn45 to A4217 (Swansea), with 39,651 a day; the quietest listed is A4215 to A4221, with 1,648.
Busiest sections, 2025
M4 jn45 to A4217 carries 2.9 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| M4 jn45 to A4217 Swansea · 1.3 mi · HGVs 2.3% | 39,651 |
| A4217 to A48 Swansea · 2.3 mi · HGVs 1.9% | 36,181 |
| A483 to A4216 Swansea · 2.5 mi · HGVs 1.0% | 32,889 |
| A4216 to start (B4593 Mumbles) Swansea · 2.4 mi · HGVs 0.7% | 25,164 |
| A4067 spur to M4 jn45 Neath Port Talbot, Swansea · 4.1 mi · HGVs 2.0% | 20,958 |
| A483 / A4067 to A4217 merge Swansea · 1.1 mi · HGVs 1.0% | 20,611 |
| A4068 to A4067 spur Neath Port Talbot · 5.0 mi · HGVs 2.4% | 12,463 |
| A4221 to A4068 Powys · 3.4 mi · HGVs 1.6% | 8,306 |
| A40 to A4215 Powys · 1.1 mi · HGVs 3.1% | 3,159 |
| A4215 to A4221 Powys · 12.9 mi · HGVs 4.3% | 1,648 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Powys to Swansea · 36.2 miles
A4067 traffic and collisions by section
10 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 1 short link roads and spurs (0.1 miles) count in the road’s totals but are not listed.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A40 to A4215Powys | 3,159 | fewer than 3 |
| 2 | A4215 to A4221Powys | 1,648 | 22 |
| 3 | A4221 to A4068Powys | 8,306 | 10 |
| 4 | A4068 to A4067 spurNeath Port Talbot | 12,463 | 8 |
| 5 | A4067 spur to M4 jn45Neath Port Talbot, Swansea | 20,958 | 7 |
| 6 | M4 jn45 to A4217Swansea | 39,651 | 8 |
| 7 | A4217 to A48Swansea | 36,181 | 18 |
| 8 | A483 / A4067 to A4217 mergeSwansea | 20,611 | 0 |
| 9 | A483 to A4216Swansea | 32,889 | 21 |
| 10 | A4216 to start (B4593 Mumbles)Swansea | 25,164 | 7 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A4067 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.
A4067 traffic by vehicle type
Cars and taxis make up 80.8% of the vehicle miles on the A4067. HGVs account for 1.8%, rising to 4.3% on A4215 to A4221.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.7% |
| 2001 | 3.6% |
| 2002 | 3.1% |
| 2003 | 3.5% |
| 2004 | 3.3% |
| 2005 | 2.7% |
| 2006 | 3.2% |
| 2007 | 3.0% |
| 2008 | 2.9% |
| 2009 | 2.6% |
| 2010 | 2.4% |
| 2011 | 2.4% |
| 2012 | 2.5% |
| 2013 | 2.6% |
| 2014 | 2.6% |
| 2015 | 2.4% |
| 2016 | 2.4% |
| 2017 | 2.4% |
| 2018 | 2.0% |
| 2019 | 2.0% |
| 2020 | 2.3% |
| 2021 | 2.1% |
| 2022 | 2.0% |
| 2023 | 1.9% |
| 2024 | 1.8% |
| 2025 | 1.8% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A4067 traffic trend
Traffic on the A4067 came to 184 million vehicle miles in 2025. At the count points present in both years, it is down 2.1% on 2019, before the pandemic, and up 3.0% on 2015.
Vehicle miles a year
Like for like, traffic is up 12.0% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 141m |
| 2001 | 146m |
| 2002 | 154m |
| 2003 | 152m |
| 2004 | 160m |
| 2005 | 162m |
| 2006 | 167m |
| 2007 | 171m |
| 2008 | 166m |
| 2009 | 165m |
| 2010 | 160m |
| 2011 | 162m |
| 2012 | 161m |
| 2013 | 161m |
| 2014 | 162m |
| 2015 | 159m |
| 2016 | 162m |
| 2017 | 164m |
| 2018 | 167m |
| 2019 | 168m |
| 2020 | 130m |
| 2021 | 149m |
| 2022 | 161m |
| 2023 | 166m |
| 2024 | 177m |
| 2025 | 184m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 11,250 |
| 2001 | 11,602 |
| 2002 | 12,240 |
| 2003 | 12,133 |
| 2004 | 12,719 |
| 2005 | 12,913 |
| 2006 | 13,276 |
| 2007 | 13,645 |
| 2008 | 13,205 |
| 2009 | 13,147 |
| 2010 | 12,751 |
| 2011 | 12,866 |
| 2012 | 12,797 |
| 2013 | 12,854 |
| 2014 | 12,924 |
| 2015 | 12,633 |
| 2016 | 12,918 |
| 2017 | 13,063 |
| 2018 | 13,243 |
| 2019 | 13,301 |
| 2020 | 10,283 |
| 2021 | 11,737 |
| 2022 | 12,736 |
| 2023 | 13,123 |
| 2024 | 13,516 |
| 2025 | 13,900 |
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 (87.0% of today’s road for 2019). In 2025, 1 of the 12 count points were counted; DfT estimated the rest from earlier counts and local trends.
A4067 collisions
Police recorded 102 collisions with the A4067 as the first road from 2021 to 2025, 39 of them fatal or serious. That is 12.2 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 0.6 a year for each mile of road.
Reported collisions by year
Up 46.7% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 10 | 5 |
| 2022 | 12 | 9 |
| 2023 | 14 | 8 |
| 2024 | 13 | 9 |
| 2025 | 14 | 8 |
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 |
|---|---|
| A4217 to A48 Swansea · 18 collisions | 59.3 |
| A4215 to A4221 Powys · 22 collisions | 59.0 |
| A4221 to A4068 Powys · 10 collisions | 20.2 |
| A483 to A4216 Swansea · 21 collisions | 14.5 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 19 collisions were recorded at junctions where the A4067 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 A4067
In route order. Each is the highway authority DfT files the count points under.
- Powys
- Neath Port Talbot
- Swansea
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 | 12 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 102 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.