Trunk A-road
A419 traffic and collisions
The A419 is a trunk A-road of 40.8 miles, from Swindon to Gloucestershire. This page covers its traffic at 19 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 448m vehicle miles
- Average daily traffic 30,092 vehicles a day, both directions
- Busiest section 66,430 A4259 to A4312 / A420
- HGV share 5.9% of vehicle miles
- Traffic since 2019 +1.6% same count points
- Collisions, 2021 to 2025 260 12.6 per 100m vehicle miles
How busy is the A419?
On an average day in 2025, 30,092 vehicles passed each point on the A419, counting both directions. The busiest section is A4259 to A4312 / A420 (Swindon), with 66,430 a day; the quietest listed is A429 E to A46 Bath Rd, with 7,267.
Busiest sections, 2025
A4259 to A4312 / A420 carries 2.2 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A4259 to A4312 / A420 Swindon · 2.8 mi · HGVs 7.0% | 66,430 |
| M5 to A4259 Swindon · 1.1 mi · HGVs 6.8% | 63,420 |
| A419 spur/A361 to B420 Swindon · 0.9 mi · HGVs 7.1% | 63,266 |
| A361 to A4311 Swindon · 1.7 mi · HGVs 5.4% | 54,713 |
| A4311 to A417 Swindon, Wiltshire, Gloucestershire · 8.6 mi · HGVs 7.0% | 44,552 |
| A4171 to A38 Gloucestershire · 4.5 mi · HGVs 2.2% | 25,035 |
| A429 to A417 Gloucestershire · 2.2 mi · HGVs 1.9% | 22,298 |
| A429 W to A429 E Gloucestershire · 1.7 mi · HGVs 3.0% | 19,532 |
| A46 Bath Rd to Butterrow Hill Gloucestershire · 0.8 mi · HGVs 2.8% | 15,252 |
| A4135 Paganhill Lane to A46 Gloucestershire · 0.8 mi · HGVs 2.2% | 13,863 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Swindon to Gloucestershire · 40.8 miles
A419 traffic and collisions by section
15 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 2 short link roads and spurs (3.3 miles) count in the road’s totals but are not listed.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | M5 to A4259Swindon | 63,420 | 14 |
| 2 | A4259 to A4312 / A420Swindon | 66,430 | 27 |
| 3 | A419 spur/A361 to B420Swindon | 63,266 | 22 |
| 4 | At A419 spurSwindon | 60,859 | 5 |
| 5 | A361 to A4311Swindon | 54,713 | 16 |
| 6 | A4311 to A417Swindon, Wiltshire, Gloucestershire | 44,552 | 57 |
| 7 | A417 to A419 Cirencester Road roundaboutGloucestershire | 22,298 | 0 |
| 8 | A429 to A417Gloucestershire | 22,298 | 12 |
| 9 | A429 W to A429 EGloucestershire | 19,532 | fewer than 3 |
| 10 | A429 E to A46 Bath RdGloucestershire | 7,267 | 36 |
| 11 | A46 Bath Rd to Butterrow HillGloucestershire | 15,252 | 9 |
| 12 | A4135 Paganhill Lane to A46Gloucestershire | 13,863 | 9 |
| 13 | A46 to A4171Gloucestershire | 23,508 | 4 |
| 14 | A4171 to A38Gloucestershire | 25,035 | 36 |
| 15 | A38 to M5 Junction 13Gloucestershire | 12,710 | 6 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A419 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.
A419 traffic by vehicle type
Cars and taxis make up 76.5% of the vehicle miles on the A419. HGVs account for 5.9%, rising to 7.1% on A419 spur/A361 to B420.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 8.3% |
| 2001 | 8.3% |
| 2002 | 8.3% |
| 2003 | 7.5% |
| 2004 | 7.7% |
| 2005 | 7.4% |
| 2006 | 7.7% |
| 2007 | 7.7% |
| 2008 | 7.7% |
| 2009 | 6.9% |
| 2010 | 6.3% |
| 2011 | 6.4% |
| 2012 | 6.0% |
| 2013 | 6.0% |
| 2014 | 6.0% |
| 2015 | 6.1% |
| 2016 | 6.4% |
| 2017 | 6.8% |
| 2018 | 6.9% |
| 2019 | 6.4% |
| 2020 | 7.8% |
| 2021 | 7.9% |
| 2022 | 7.2% |
| 2023 | 6.4% |
| 2024 | 6.2% |
| 2025 | 5.9% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A419 traffic trend
Traffic on the A419 came to 448 million vehicle miles in 2025. At the count points present in both years, it is up 1.6% on 2019, before the pandemic, and up 8.9% on 2015.
Vehicle miles a year
Like for like, traffic is up 42.3% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 298m |
| 2001 | 305m |
| 2002 | 308m |
| 2003 | 334m |
| 2004 | 333m |
| 2005 | 335m |
| 2006 | 341m |
| 2007 | 339m |
| 2008 | 326m |
| 2009 | 322m |
| 2010 | 341m |
| 2011 | 333m |
| 2012 | 337m |
| 2013 | 346m |
| 2014 | 355m |
| 2015 | 371m |
| 2016 | 383m |
| 2017 | 386m |
| 2018 | 396m |
| 2019 | 443m |
| 2020 | 319m |
| 2021 | 355m |
| 2022 | 404m |
| 2023 | 425m |
| 2024 | 432m |
| 2025 | 448m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 22,309 |
| 2001 | 22,793 |
| 2002 | 23,213 |
| 2003 | 25,133 |
| 2004 | 25,065 |
| 2005 | 25,185 |
| 2006 | 25,681 |
| 2007 | 25,510 |
| 2008 | 24,496 |
| 2009 | 24,251 |
| 2010 | 25,678 |
| 2011 | 25,039 |
| 2012 | 25,394 |
| 2013 | 26,042 |
| 2014 | 26,718 |
| 2015 | 27,947 |
| 2016 | 28,797 |
| 2017 | 29,029 |
| 2018 | 29,155 |
| 2019 | 29,870 |
| 2020 | 21,390 |
| 2021 | 23,858 |
| 2022 | 27,117 |
| 2023 | 28,546 |
| 2024 | 29,017 |
| 2025 | 30,092 |
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 (62.3% of today’s road for 2019). In 2025, 8 of the 19 count points were counted; DfT estimated the rest from earlier counts and local trends.
A419 collisions
Police recorded 260 collisions with the A419 as the first road from 2021 to 2025, 55 of them fatal or serious. That is 12.6 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 1.3 a year for each mile of road.
Reported collisions by year
About the same in 2025 as in 2021.
| Year | Collisions |
|---|---|
| 2021 | 53 |
| 2022 | 53 |
| 2023 | 53 |
| 2024 | 47 |
| 2025 | 54 |
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 |
|---|---|
| A429 E to A46 Bath Rd Gloucestershire · 36 collisions | 25.7 |
| A419 spur/A361 to B420 Swindon · 22 collisions | 23.2 |
| A4171 to A38 Gloucestershire · 36 collisions | 18.5 |
| A429 to A417 Gloucestershire · 12 collisions | 14.4 |
| M5 to A4259 Swindon · 14 collisions | 12.0 |
| A361 to A4311 Swindon · 16 collisions | 10.7 |
| A4259 to A4312 / A420 Swindon · 27 collisions | 9.0 |
| A4311 to A417 Swindon, Wiltshire, Gloucestershire · 57 collisions | 8.9 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 43 collisions were recorded at junctions where the A419 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 A419
In route order. Each is the highway authority DfT files the count points under.
- Swindon
- Wiltshire
- 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 | 19 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 260 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.