A-road
A482 traffic and collisions
The A482 is an A-road of 29.4 miles, from Carmarthenshire to Ceredigion. This page covers its traffic at 5 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 35m vehicle miles
- Average daily traffic 3,244 vehicles a day, both directions
- Busiest section 7,987 A475 Harford Sq roundabout to A485 Lampeter
- HGV share 5.8% of vehicle miles
- Traffic since 2019 +3.1% same count points
- Collisions, 2021 to 2025 55 32.9 per 100m vehicle miles
How busy is the A482?
On an average day in 2025, 3,244 vehicles passed each point on the A482, counting both directions. The busiest section is A475 Harford Sq roundabout to A485 Lampeter (Ceredigion), with 7,987 a day; the quietest listed is A40 to A485, with 3,047.
Busiest sections, 2025
A475 Harford Sq roundabout to A485 Lampeter carries 2.5 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A475 Harford Sq roundabout to A485 Lampeter Ceredigion · 0.5 mi · HGVs 2.8% | 7,987 |
| A485 to A475 Harford Sq roundabout Carmarthenshire, Ceredigion · 0.6 mi · HGVs 3.2% | 7,047 |
| A485 Lampeter to A487 Aberaeron Ceredigion · 12.7 mi · HGVs 7.2% | 3,120 |
| A40 to A485 Carmarthenshire · 15.6 mi · HGVs 5.1% | 3,047 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Carmarthenshire to Ceredigion · 29.4 miles
A482 traffic and collisions by section
4 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A40 to A485Carmarthenshire | 3,047 | 16 |
| 2 | A485 to A475 Harford Sq roundaboutCarmarthenshire, Ceredigion | 7,047 | 4 |
| 3 | A475 Harford Sq roundabout to A485 LampeterCeredigion | 7,987 | fewer than 3 |
| 4 | A485 Lampeter to A487 AberaeronCeredigion | 3,120 | 31 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A482 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.
A482 traffic by vehicle type
Cars and taxis make up 73.4% of the vehicle miles on the A482. HGVs account for 5.8%, rising to 7.2% on A485 Lampeter to A487 Aberaeron.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 6.2% |
| 2001 | 5.7% |
| 2002 | 7.1% |
| 2003 | 6.2% |
| 2004 | 5.6% |
| 2005 | 6.2% |
| 2006 | 6.5% |
| 2007 | 6.1% |
| 2008 | 6.8% |
| 2009 | 6.6% |
| 2010 | 6.7% |
| 2011 | 6.8% |
| 2012 | 6.9% |
| 2013 | 6.9% |
| 2014 | 7.0% |
| 2015 | 6.6% |
| 2016 | 6.6% |
| 2017 | 6.7% |
| 2018 | 6.8% |
| 2019 | 6.8% |
| 2020 | 6.7% |
| 2021 | 6.6% |
| 2022 | 6.2% |
| 2023 | 6.0% |
| 2024 | 5.9% |
| 2025 | 5.8% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A482 traffic trend
Traffic on the A482 came to 34.8 million vehicle miles in 2025. At the count points present in both years, it is up 3.1% on 2019, before the pandemic, and up 7.8% on 2015.
Vehicle miles a year
Like for like, traffic is up 11.9% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 31m |
| 2001 | 30m |
| 2002 | 32m |
| 2003 | 33m |
| 2004 | 31m |
| 2005 | 31m |
| 2006 | 34m |
| 2007 | 35m |
| 2008 | 33m |
| 2009 | 33m |
| 2010 | 32m |
| 2011 | 32m |
| 2012 | 32m |
| 2013 | 33m |
| 2014 | 34m |
| 2015 | 32m |
| 2016 | 33m |
| 2017 | 34m |
| 2018 | 34m |
| 2019 | 34m |
| 2020 | 28m |
| 2021 | 31m |
| 2022 | 33m |
| 2023 | 34m |
| 2024 | 35m |
| 2025 | 35m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 2,898 |
| 2001 | 2,782 |
| 2002 | 2,964 |
| 2003 | 3,111 |
| 2004 | 2,883 |
| 2005 | 2,863 |
| 2006 | 3,143 |
| 2007 | 3,265 |
| 2008 | 3,031 |
| 2009 | 3,080 |
| 2010 | 2,993 |
| 2011 | 3,013 |
| 2012 | 2,963 |
| 2013 | 3,039 |
| 2014 | 3,125 |
| 2015 | 3,010 |
| 2016 | 3,080 |
| 2017 | 3,119 |
| 2018 | 3,143 |
| 2019 | 3,146 |
| 2020 | 2,559 |
| 2021 | 2,906 |
| 2022 | 3,084 |
| 2023 | 3,158 |
| 2024 | 3,212 |
| 2025 | 3,244 |
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, 1 of the 5 count points were counted; DfT estimated the rest from earlier counts and local trends.
A482 collisions
Police recorded 55 collisions with the A482 as the first road from 2021 to 2025, 27 of them fatal or serious. That is 32.9 per 100 million vehicle miles, close to the 31.5 for all A-roads in Great Britain. On average there were 0.4 a year for each mile of road.
Reported collisions by year
Up 33.3% from 2021 to 2025.
| Year | Collisions |
|---|---|
| 2021 | 9 |
| 2022 | 12 |
| 2023 | 6 |
| 2024 | 16 |
| 2025 | 12 |
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 |
|---|---|
| A485 Lampeter to A487 Aberaeron Ceredigion · 31 collisions | 44.5 |
| A40 to A485 Carmarthenshire · 16 collisions | 19.2 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
Fatal or serious uses DfT’s adjusted serious figures. How we count collisions
Council areas on the A482
In route order. Each is the highway authority DfT files the count points under.
- Carmarthenshire
- Ceredigion
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 | 5 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 55 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.