A-road
A430 traffic and collisions
The A430 is an A-road of 6.2 miles, in Gloucestershire. This page covers its traffic at 8 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 52m vehicle miles
- Average daily traffic 22,994 vehicles a day, both directions
- Busiest section 39,607 M5 Junction 12 to Roundabout with A38 and B4008 (near Quedgeley Trading Estate West)
- HGV share 2.6% of vehicle miles
- Traffic since 2019 −7.2% same count points
- Collisions, 2021 to 2025 89 39.8 per 100m vehicle miles
How busy is the A430?
On an average day in 2025, 22,994 vehicles passed each point on the A430, counting both directions. The busiest section is M5 Junction 12 to Roundabout with A38 and B4008 (near Quedgeley Trading Estate West) (Gloucestershire), with 39,607 a day; the quietest listed is A38/A417 to A430 spur, with 8,458.
Busiest sections, 2025
M5 Junction 12 to Roundabout with A38 and B4008 (near Quedgeley Trading Estate West) carries 1.7 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| M5 Junction 12 to Roundabout with A38 and B4008 (near Quedgeley Trading Estate West) Gloucestershire · 0.6 mi · HGVs 4.8% | 39,607 |
| A38 to Spinnaker Road Gloucestershire · 2.1 mi · HGVs 2.7% | 26,419 |
| Bristol Road to Metz Way Gloucestershire · 0.8 mi · HGVs 0.8% | 22,524 |
| Metz Way to Spinanaker Road Gloucestershire · 0.5 mi · HGVs 1.5% | 13,711 |
| A38/A417 to A430 spur Gloucestershire · 0.6 mi · HGVs 0.4% | 8,458 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
In Gloucestershire · 6.2 miles
A430 traffic and collisions by section
6 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 2 short link roads and spurs (1.2 miles) count in the road’s totals but are not listed.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A38/A417 to A430 spurGloucestershire | 8,458 | 6 |
| 2 | A430 spur to A4302Gloucestershire | 19,532 | 17 |
| 3 | Bristol Road to Metz WayGloucestershire | 22,524 | 32 |
| 4 | Metz Way to Spinanaker RoadGloucestershire | 13,711 | 6 |
| 5 | A38 to Spinnaker RoadGloucestershire | 26,419 | 13 |
| 6 | M5 Junction 12 to Roundabout with A38 and B4008 (near Quedgeley Trading Estate West)Gloucestershire | 39,607 | 0 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A430 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.
A430 traffic by vehicle type
Cars and taxis make up 80.7% of the vehicle miles on the A430. HGVs account for 2.6%, rising to 4.8% on M5 Junction 12 to Roundabout with A38 and B4008 (near Quedgeley Trading Estate West).
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.4% |
| 2001 | 3.5% |
| 2002 | 3.4% |
| 2003 | 3.7% |
| 2004 | 3.3% |
| 2005 | 3.5% |
| 2006 | 2.8% |
| 2007 | 2.8% |
| 2008 | 2.4% |
| 2009 | 3.7% |
| 2010 | 3.1% |
| 2011 | 3.0% |
| 2012 | 2.7% |
| 2013 | 2.7% |
| 2014 | 2.7% |
| 2015 | 2.5% |
| 2016 | 2.5% |
| 2017 | 2.5% |
| 2018 | 2.5% |
| 2019 | 2.4% |
| 2020 | 2.9% |
| 2021 | 2.8% |
| 2022 | 3.0% |
| 2023 | 2.8% |
| 2024 | 2.6% |
| 2025 | 2.6% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A430 traffic trend
Traffic on the A430 came to 52 million vehicle miles in 2025. At the count points present in both years, it is down 7.2% on 2019, before the pandemic, and down 3.6% on 2015.
Vehicle miles a year
Like for like, traffic is down 14.7% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 27m |
| 2001 | 26m |
| 2002 | 25m |
| 2003 | 25m |
| 2004 | 33m |
| 2005 | 32m |
| 2006 | 31m |
| 2007 | 28m |
| 2008 | 34m |
| 2009 | 65m |
| 2010 | 40m |
| 2011 | 35m |
| 2012 | 35m |
| 2013 | 35m |
| 2014 | 37m |
| 2015 | 35m |
| 2016 | 39m |
| 2017 | 39m |
| 2018 | 40m |
| 2019 | 41m |
| 2020 | 30m |
| 2021 | 33m |
| 2022 | 44m |
| 2023 | 46m |
| 2024 | 49m |
| 2025 | 52m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 21,052 |
| 2001 | 20,009 |
| 2002 | 19,168 |
| 2003 | 19,591 |
| 2004 | 23,062 |
| 2005 | 22,466 |
| 2006 | 21,686 |
| 2007 | 19,644 |
| 2008 | 19,620 |
| 2009 | 22,404 |
| 2010 | 20,998 |
| 2011 | 18,677 |
| 2012 | 18,596 |
| 2013 | 18,532 |
| 2014 | 18,783 |
| 2015 | 18,854 |
| 2016 | 20,866 |
| 2017 | 20,898 |
| 2018 | 20,661 |
| 2019 | 21,071 |
| 2020 | 15,606 |
| 2021 | 17,146 |
| 2022 | 20,504 |
| 2023 | 21,120 |
| 2024 | 22,783 |
| 2025 | 22,994 |
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 (41.9% of today’s road for 2019). In 2025, 0 of the 8 count points were counted; DfT estimated the rest from earlier counts and local trends.
A430 collisions
Police recorded 89 collisions with the A430 as the first road from 2021 to 2025, 18 of them fatal or serious. That is 39.8 per 100 million vehicle miles, higher than the 31.5 for all A-roads in Great Britain. On average there were 2.9 a year for each mile of road.
Reported collisions by year
Down 7.1% from 2021 to 2025.
| Year | Collisions |
|---|---|
| 2021 | 14 |
| 2022 | 21 |
| 2023 | 23 |
| 2024 | 18 |
| 2025 | 13 |
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 |
|---|---|
| Bristol Road to Metz Way Gloucestershire · 32 collisions | 102.2 |
| A38 to Spinnaker Road Gloucestershire · 13 collisions | 64.2 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 18 collisions were recorded at junctions where the A430 was the second road; they are not in the figures above. Fatal or serious uses DfT’s adjusted serious figures. 83.1% of the collisions could be placed on a section. How we count collisions
Council areas on the A430
In route order. Each is the highway authority DfT files the count points under.
- Gloucestershire
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 | 8 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 89 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.