A-road
A5025 traffic and collisions
The A5025 is an A-road of 33.5 miles, in Isle of Anglesey. This page covers its traffic at 6 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 72m vehicle miles
- Average daily traffic 5,899 vehicles a day, both directions
- Busiest section 10,895 A55 to B5109E
- HGV share 2.3% of vehicle miles
- Traffic since 2019 +4.4% same count points
- Collisions, 2021 to 2025 40 12.2 per 100m vehicle miles
How busy is the A5025?
On an average day in 2025, 5,899 vehicles passed each point on the A5025, counting both directions. The busiest section is A55 to B5109E (Isle of Anglesey), with 10,895 a day; the quietest listed is B5111 Stryd Mona (Mona St) to High St, Cemaes, with 2,787.
Busiest sections, 2025
A55 to B5109E carries 1.8 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A55 to B5109E Isle of Anglesey · 4.8 mi · HGVs 1.9% | 10,895 |
| B5109E to B5108 Isle of Anglesey · 3.0 mi · HGVs 1.8% | 6,961 |
| High St, Cemaes to A5/B4545 Isle of Anglesey · 11.6 mi · HGVs 2.1% | 6,111 |
| B5108 to A5108 Isle of Anglesey · 1.9 mi · HGVs 2.8% | 5,385 |
| A5108 to B5111 Isle of Anglesey · 6.7 mi · HGVs 3.3% | 4,180 |
| B5111 Stryd Mona (Mona St) to High St, Cemaes Isle of Anglesey · 5.5 mi · HGVs 2.9% | 2,787 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
In Isle of Anglesey · 33.5 miles
A5025 traffic and collisions by section
6 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 | A55 to B5109EIsle of Anglesey | 10,895 | 10 |
| 2 | B5109E to B5108Isle of Anglesey | 6,961 | 7 |
| 3 | B5108 to A5108Isle of Anglesey | 5,385 | fewer than 3 |
| 4 | A5108 to B5111Isle of Anglesey | 4,180 | 6 |
| 5 | B5111 Stryd Mona (Mona St) to High St, CemaesIsle of Anglesey | 2,787 | 3 |
| 6 | High St, Cemaes to A5/B4545Isle of Anglesey | 6,111 | 11 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A5025 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.
A5025 traffic by vehicle type
Cars and taxis make up 79.4% of the vehicle miles on the A5025. HGVs account for 2.3%.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.1% |
| 2001 | 3.3% |
| 2002 | 2.8% |
| 2003 | 2.7% |
| 2004 | 2.8% |
| 2005 | 2.7% |
| 2006 | 2.5% |
| 2007 | 2.5% |
| 2008 | 3.1% |
| 2009 | 3.0% |
| 2010 | 3.0% |
| 2011 | 2.8% |
| 2012 | 2.7% |
| 2013 | 2.1% |
| 2014 | 2.1% |
| 2015 | 2.4% |
| 2016 | 2.3% |
| 2017 | 2.4% |
| 2018 | 2.5% |
| 2019 | 2.5% |
| 2020 | 2.9% |
| 2021 | 2.8% |
| 2022 | 2.7% |
| 2023 | 2.6% |
| 2024 | 2.3% |
| 2025 | 2.3% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A5025 traffic trend
Traffic on the A5025 came to 72.1 million vehicle miles in 2025. At the count points present in both years, it is up 4.4% on 2019, before the pandemic, and up 5.0% on 2015.
Vehicle miles a year
Like for like, traffic is down 2.1% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 74m |
| 2001 | 73m |
| 2002 | 67m |
| 2003 | 69m |
| 2004 | 72m |
| 2005 | 72m |
| 2006 | 71m |
| 2007 | 71m |
| 2008 | 72m |
| 2009 | 73m |
| 2010 | 72m |
| 2011 | 72m |
| 2012 | 71m |
| 2013 | 67m |
| 2014 | 68m |
| 2015 | 69m |
| 2016 | 68m |
| 2017 | 69m |
| 2018 | 69m |
| 2019 | 69m |
| 2020 | 52m |
| 2021 | 58m |
| 2022 | 62m |
| 2023 | 64m |
| 2024 | 71m |
| 2025 | 72m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 6,027 |
| 2001 | 5,972 |
| 2002 | 5,493 |
| 2003 | 5,629 |
| 2004 | 5,915 |
| 2005 | 5,850 |
| 2006 | 5,804 |
| 2007 | 5,781 |
| 2008 | 5,882 |
| 2009 | 5,961 |
| 2010 | 5,861 |
| 2011 | 5,909 |
| 2012 | 5,816 |
| 2013 | 5,472 |
| 2014 | 5,571 |
| 2015 | 5,620 |
| 2016 | 5,558 |
| 2017 | 5,620 |
| 2018 | 5,642 |
| 2019 | 5,652 |
| 2020 | 4,270 |
| 2021 | 4,712 |
| 2022 | 5,092 |
| 2023 | 5,190 |
| 2024 | 5,828 |
| 2025 | 5,899 |
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, 0 of the 6 count points were counted; DfT estimated the rest from earlier counts and local trends.
A5025 collisions
Police recorded 40 collisions with the A5025 as the first road from 2021 to 2025, fewer than 3 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 0.2 a year for each mile of road.
Reported collisions by year
Down 54.5% from 2021 to 2025.
| Year | Collisions |
|---|---|
| 2021 | 11 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 8 |
| 2025 | 5 |
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 |
|---|---|
| A55 to B5109E Isle of Anglesey · 10 collisions | 12.0 |
| High St, Cemaes to A5/B4545 Isle of Anglesey · 11 collisions | 9.8 |
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 A5025
In route order. Each is the highway authority DfT files the count points under.
- Isle of Anglesey
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 | 6 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 40 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.