A-road
A390 traffic and collisions
The A390 is an A-road of 54.9 miles, from Devon to Cornwall. This page covers its traffic at 19 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 239m vehicle miles
- Average daily traffic 11,906 vehicles a day, both directions
- Busiest section 27,769 Station Road roundabout to roundabout at Threemilestone
- HGV share 2.5% of vehicle miles
- Traffic since 2019 −1.8% same count points
- Collisions, 2021 to 2025 300 26.7 per 100m vehicle miles
How busy is the A390?
On an average day in 2025, 11,906 vehicles passed each point on the A390, counting both directions. The busiest section is Station Road roundabout to roundabout at Threemilestone (Cornwall), with 27,769 a day; the quietest listed is A388 to A38(T), with 5,116.
Busiest sections, 2025
Station Road roundabout to roundabout at Threemilestone carries 2.3 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| Station Road roundabout to roundabout at Threemilestone Cornwall · 2.5 mi · HGVs 1.5% | 27,769 |
| Bucklers Lane to Charlestown Road roundabout Cornwall · 0.7 mi · HGVs 1.8% | 22,602 |
| Charlestown Road roundabout to B3273 Cornwall · 1.2 mi · HGVs 1.3% | 21,319 |
| A390 Roundabout near Roscarnick Farm to A390 Roundabout near Threemilestone, Cornwall Cornwall · 3.0 mi · HGVs 3.4% | 19,859 |
| A3078 to A39 Cornwall · 4.3 mi · HGVs 2.0% | 17,924 |
| A3058 to A3078 Cornwall · 8.1 mi · HGVs 2.5% | 16,144 |
| A39 to Station Road roundabout Cornwall · 0.7 mi · HGVs 1.9% | 15,899 |
| At B3269 Cornwall · 0.6 mi · HGVs 2.1% | 13,927 |
| At A3082 Cornwall · 1.7 mi · HGVs 2.4% | 13,078 |
| B3269 to A3082 Cornwall · 2.7 mi · HGVs 2.3% | 11,492 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Devon to Cornwall · 54.9 miles
A390 traffic and collisions by section
18 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length.
Show all 18 sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A390 to B3362Devon | 12,532 | fewer than 3 |
| 2 | B3362 to A388Devon, Cornwall | 7,053 | 38 |
| 3 | A388 to A38(T)Cornwall | 5,116 | 42 |
| 4 | A38 to B3268Cornwall | 6,252 | 21 |
| 5 | B3268 to B3269Cornwall | 7,473 | 8 |
| 6 | At B3269Cornwall | 13,927 | fewer than 3 |
| 7 | B3269 to A3082Cornwall | 11,492 | 20 |
| 8 | At A3082Cornwall | 13,078 | 7 |
| 9 | A3082 to A391Cornwall | 30,784 | fewer than 3 |
| 10 | A391 to Bucklers LaneCornwall | 21,322 | 3 |
| 11 | Bucklers Lane to Charlestown Road roundaboutCornwall | 22,602 | 12 |
| 12 | Charlestown Road roundabout to B3273Cornwall | 21,319 | 16 |
| 13 | B3273 to ACornwall | 20,711 | 11 |
| 14 | A3058 to A3078Cornwall | 16,144 | 21 |
| 15 | A3078 to A39Cornwall | 17,924 | 25 |
| 16 | A39 to Station Road roundaboutCornwall | 15,899 | 15 |
| 17 | Station Road roundabout to roundabout at ThreemilestoneCornwall | 27,769 | 36 |
| 18 | A390 Roundabout near Roscarnick Farm to A390 Roundabout near Threemilestone, CornwallCornwall | 19,859 | 20 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A390 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.
A390 traffic by vehicle type
Cars and taxis make up 77.5% of the vehicle miles on the A390. HGVs account for 2.5%, rising to 4.1% on A388 to A38(T).
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.4% |
| 2001 | 3.2% |
| 2002 | 3.2% |
| 2003 | 3.1% |
| 2004 | 3.0% |
| 2005 | 3.0% |
| 2006 | 2.8% |
| 2007 | 3.0% |
| 2008 | 2.9% |
| 2009 | 2.7% |
| 2010 | 2.7% |
| 2011 | 2.6% |
| 2012 | 2.6% |
| 2013 | 2.6% |
| 2014 | 2.7% |
| 2015 | 2.9% |
| 2016 | 2.8% |
| 2017 | 2.8% |
| 2018 | 2.5% |
| 2019 | 2.2% |
| 2020 | 2.6% |
| 2021 | 2.7% |
| 2022 | 2.5% |
| 2023 | 2.5% |
| 2024 | 2.6% |
| 2025 | 2.5% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A390 traffic trend
Traffic on the A390 came to 239 million vehicle miles in 2025. At the count points present in both years, it is down 1.8% on 2019, before the pandemic, and down 3.2% on 2015.
Vehicle miles a year
Like for like, traffic is up 4.3% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 222m |
| 2001 | 235m |
| 2002 | 240m |
| 2003 | 253m |
| 2004 | 250m |
| 2005 | 251m |
| 2006 | 252m |
| 2007 | 239m |
| 2008 | 246m |
| 2009 | 247m |
| 2010 | 242m |
| 2011 | 239m |
| 2012 | 237m |
| 2013 | 238m |
| 2014 | 237m |
| 2015 | 235m |
| 2016 | 236m |
| 2017 | 239m |
| 2018 | 235m |
| 2019 | 236m |
| 2020 | 178m |
| 2021 | 205m |
| 2022 | 220m |
| 2023 | 227m |
| 2024 | 234m |
| 2025 | 239m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 11,356 |
| 2001 | 12,040 |
| 2002 | 12,270 |
| 2003 | 12,948 |
| 2004 | 12,794 |
| 2005 | 12,838 |
| 2006 | 12,895 |
| 2007 | 12,257 |
| 2008 | 12,618 |
| 2009 | 12,631 |
| 2010 | 12,383 |
| 2011 | 12,245 |
| 2012 | 12,151 |
| 2013 | 12,172 |
| 2014 | 12,128 |
| 2015 | 12,025 |
| 2016 | 12,075 |
| 2017 | 12,186 |
| 2018 | 11,979 |
| 2019 | 11,973 |
| 2020 | 9,060 |
| 2021 | 10,401 |
| 2022 | 11,185 |
| 2023 | 11,545 |
| 2024 | 11,715 |
| 2025 | 11,906 |
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 19 count points were counted; DfT estimated the rest from earlier counts and local trends.
A390 collisions
Police recorded 300 collisions with the A390 as the first road from 2021 to 2025, 69 of them fatal or serious, including 11 fatal. That is 26.7 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 1.1 a year for each mile of road.
Reported collisions by year
Down 16.4% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 43 | 12 |
| 2022 | 52 | 14 |
| 2023 | 50 | 22 |
| 2024 | 48 | 13 |
| 2025 | 38 | 8 |
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 |
|---|---|
| Station Road roundabout to roundabout at Threemilestone Cornwall · 36 collisions | 142.1 |
| A39 to Station Road roundabout Cornwall · 15 collisions | 76.3 |
| A388 to A38(T) Cornwall · 42 collisions | 50.4 |
| A390 Roundabout near Roscarnick Farm to A390 Roundabout near Threemilestone, Cornwall Cornwall · 20 collisions | 46.3 |
| Bucklers Lane to Charlestown Road roundabout Cornwall · 12 collisions | 41.2 |
| B3269 to A3082 Cornwall · 20 collisions | 36.8 |
| Charlestown Road roundabout to B3273 Cornwall · 16 collisions | 35.8 |
| B3362 to A388 Devon, Cornwall · 38 collisions | 33.1 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 25 collisions were recorded at junctions where the A390 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 A390
In route order. Each is the highway authority DfT files the count points under.
- Devon
- Cornwall
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 | 300 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.