A-road
A5104 traffic and collisions
The A5104 is an A-road of 25.9 miles in England and Wales, from West Cheshire to Denbighshire. This page covers its traffic at 11 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 55m vehicle miles
- Average daily traffic 5,823 vehicles a day, both directions
- Busiest section 15,088 A55 main route to A55 spur/B5125
- HGV share 2.7% of vehicle miles
- Traffic since 2019 −4.1% same count points
- Collisions, 2021 to 2025 66 24.9 per 100m vehicle miles
How busy is the A5104?
On an average day in 2025, 5,823 vehicles passed each point on the A5104, counting both directions. The busiest section is A55 main route to A55 spur/B5125 (Flintshire), with 15,088 a day; the quietest listed is B5430 to A525, with 2,621.
Busiest sections, 2025
A55 main route to A55 spur/B5125 carries 2.6 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A55 main route to A55 spur/B5125 Flintshire · 1.2 mi · HGVs 1.4% | 15,088 |
| B5129 Saltney Ferry Rd to A55/B5125 Flintshire · 1.9 mi · HGVs 2.8% | 13,351 |
| A483 to B5129 Saltney Ferry Rd West Cheshire, Flintshire · 2.2 mi · HGVs 1.6% | 12,006 |
| A55 to A550 Flintshire · 1.6 mi · HGVs 3.0% | 11,085 |
| A541 to B5430 Flintshire · 4.7 mi · HGVs 2.4% | 4,858 |
| A550 to A541 Flintshire · 1.6 mi · HGVs 3.2% | 4,293 |
| A525 to A542 Denbighshire · 0.7 mi · HGVs 4.5% | 2,731 |
| A494 to A592 Denbighshire · 8.8 mi · HGVs 4.7% | 2,635 |
| B5430 to A525 Flintshire, Denbighshire · 3.2 mi · HGVs 2.1% | 2,621 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
West Cheshire to Denbighshire · 25.9 miles
A5104 traffic and collisions by section
9 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 | A483 to B5129 Saltney Ferry RdWest Cheshire, Flintshire | 12,006 | 21 |
| 2 | B5129 Saltney Ferry Rd to A55/B5125Flintshire | 13,351 | 10 |
| 3 | A55 main route to A55 spur/B5125Flintshire | 15,088 | 4 |
| 4 | A55 to A550Flintshire | 11,085 | 3 |
| 5 | A550 to A541Flintshire | 4,293 | fewer than 3 |
| 6 | A541 to B5430Flintshire | 4,858 | 8 |
| 7 | B5430 to A525Flintshire, Denbighshire | 2,621 | 4 |
| 8 | A525 to A542Denbighshire | 2,731 | fewer than 3 |
| 9 | A494 to A592Denbighshire | 2,635 | 12 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A5104 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.
A5104 traffic by vehicle type
Cars and taxis make up 77.0% of the vehicle miles on the A5104. HGVs account for 2.7%, rising to 4.7% on A494 to A592.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 4.2% |
| 2001 | 4.3% |
| 2002 | 4.5% |
| 2003 | 4.8% |
| 2004 | 3.9% |
| 2005 | 3.8% |
| 2006 | 3.6% |
| 2007 | 3.7% |
| 2008 | 3.4% |
| 2009 | 3.1% |
| 2010 | 3.1% |
| 2011 | 3.2% |
| 2012 | 3.2% |
| 2013 | 3.1% |
| 2014 | 3.3% |
| 2015 | 3.2% |
| 2016 | 3.0% |
| 2017 | 3.0% |
| 2018 | 3.1% |
| 2019 | 3.1% |
| 2020 | 3.5% |
| 2021 | 3.3% |
| 2022 | 2.9% |
| 2023 | 2.8% |
| 2024 | 2.7% |
| 2025 | 2.7% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A5104 traffic trend
Traffic on the A5104 came to 55 million vehicle miles in 2025. At the count points present in both years, it is down 4.1% on 2019, before the pandemic, and about the same as in 2015.
Vehicle miles a year
Like for like, traffic is up 12.1% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 49m |
| 2001 | 53m |
| 2002 | 56m |
| 2003 | 59m |
| 2004 | 57m |
| 2005 | 55m |
| 2006 | 57m |
| 2007 | 57m |
| 2008 | 54m |
| 2009 | 55m |
| 2010 | 53m |
| 2011 | 54m |
| 2012 | 54m |
| 2013 | 54m |
| 2014 | 54m |
| 2015 | 54m |
| 2016 | 57m |
| 2017 | 57m |
| 2018 | 57m |
| 2019 | 57m |
| 2020 | 43m |
| 2021 | 49m |
| 2022 | 53m |
| 2023 | 54m |
| 2024 | 54m |
| 2025 | 55m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 5,150 |
| 2001 | 5,628 |
| 2002 | 5,912 |
| 2003 | 6,297 |
| 2004 | 6,033 |
| 2005 | 5,864 |
| 2006 | 6,024 |
| 2007 | 5,999 |
| 2008 | 5,773 |
| 2009 | 5,823 |
| 2010 | 5,664 |
| 2011 | 5,717 |
| 2012 | 5,726 |
| 2013 | 5,714 |
| 2014 | 5,679 |
| 2015 | 5,774 |
| 2016 | 6,007 |
| 2017 | 6,056 |
| 2018 | 6,078 |
| 2019 | 6,069 |
| 2020 | 4,588 |
| 2021 | 5,168 |
| 2022 | 5,579 |
| 2023 | 5,687 |
| 2024 | 5,759 |
| 2025 | 5,823 |
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 11 count points were counted; DfT estimated the rest from earlier counts and local trends.
A5104 collisions
Police recorded 66 collisions with the A5104 as the first road from 2021 to 2025, 30 of them fatal or serious. That is 24.9 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 0.5 a year for each mile of road.
Reported collisions by year
Down 55.0% from 2021 to 2025.
| Year | Collisions |
|---|---|
| 2021 | 20 |
| 2022 | 13 |
| 2023 | 15 |
| 2024 | 9 |
| 2025 | 9 |
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 |
|---|---|
| A483 to B5129 Saltney Ferry Rd West Cheshire, Flintshire · 21 collisions | 45.0 |
| A494 to A592 Denbighshire · 12 collisions | 29.6 |
| B5129 Saltney Ferry Rd to A55/B5125 Flintshire · 10 collisions | 22.2 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 14 collisions were recorded at junctions where the A5104 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 A5104
In route order. Each is the highway authority DfT files the count points under.
- West Cheshire
- Flintshire
- Denbighshire
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 | 11 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 66 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.