A-road
A671 traffic and collisions
The A671 is an A-road of 32.6 miles, from Oldham to Lancashire. This page covers its traffic at 30 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 142m vehicle miles
- Average daily traffic 11,904 vehicles a day, both directions
- Busiest section 26,217 A680 to B6246
- HGV share 2.1% of vehicle miles
- Traffic since 2019 +4.2% same count points
- Collisions, 2021 to 2025 270 40.3 per 100m vehicle miles
How busy is the A671?
On an average day in 2025, 11,904 vehicles passed each point on the A671, counting both directions. The busiest section is A680 to B6246 (Lancashire), with 26,217 a day; the quietest listed is road to Meadows Ave, Bacup to A646, with 5,759.
Busiest sections, 2025
A680 to B6246 carries 2.2 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A680 to B6246 Lancashire · 0.6 mi · HGVs 3.3% | 26,217 |
| A640 to A58 Rochdale · 0.6 mi · HGVs 0.9% | 20,470 |
| A6048 to A663 Oldham · 0.7 mi · HGVs 1.2% | 18,360 |
| B6246 to A59 Lancashire · 0.9 mi · HGVs 4.0% | 16,601 |
| Whalley Road (non- A671) to Primrose Rd, Clitheroe Lancashire · 1.0 mi · HGVs 1.5% | 16,536 |
| A664 to A640 Rochdale · 0.7 mi · HGVs 2.4% | 15,844 |
| A646 to A678 Lancashire · 1.4 mi · HGVs 1.0% | 15,484 |
| A6068 to A680 Lancashire · 2.9 mi · HGVs 3.5% | 14,498 |
| M65 to A646 Lancashire · 1.2 mi · HGVs 0.7% | 13,944 |
| A58 to B6377 Shawclough Rd Rochdale, Lancashire · 1.8 mi · HGVs 1.2% | 12,522 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Oldham to Lancashire · 32.6 miles
A671 traffic and collisions by section
27 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 1 short link roads and spurs (0.3 miles) count in the road’s totals but are not listed.
Show all 27 sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A627 to A6048Oldham | 9,719 | 4 |
| 2 | A6048 to A663Oldham | 18,360 | 11 |
| 3 | A663 to A664Oldham, Rochdale | 10,327 | 31 |
| 4 | A664 to A640Rochdale | 15,844 | 10 |
| 5 | A640 to A58Rochdale | 20,470 | 6 |
| 6 | A58 to B6377 Shawclough RdRochdale, Lancashire | 12,522 | 10 |
| 7 | B6377 Shawclough Rd to A6066Lancashire | 10,305 | 29 |
| 8 | A6066 to A681Lancashire | 6,147 | 12 |
| 9 | A681 to road to Meadows AveLancashire | 6,392 | 8 |
| 10 | road to Meadows Ave, Bacup to A646Lancashire | 5,759 | 20 |
| 11 | A646(T) to Rock Lane, BurnleyLancashire | 8,208 | fewer than 3 |
| 12 | Rock Lane to A6114Lancashire | 9,111 | 7 |
| 13 | A671 to A682Lancashire | 15,908 | 8 |
| 14 | A682 to A671 splitLancashire | 12,092 | 4 |
| 15 | A671 Trafalgar St to A679Lancashire | 34,948 | 10 |
| 16 | A679 to M65Lancashire | 57,376 | 7 |
| 17 | M65 to A646Lancashire | 13,944 | 9 |
| 18 | A646 to A678Lancashire | 15,484 | 28 |
| 19 | A678 to A6068Lancashire | 4,749 | fewer than 3 |
| 20 | A6068 to A680Lancashire | 14,498 | 9 |
| 21 | A680 to B6246Lancashire | 26,217 | 4 |
| 22 | B6246 to A59Lancashire | 16,601 | 6 |
| 23 | A59 to Whalley RdLancashire | 13,844 | 0 |
| 24 | Whalley Road (non- A671) to Primrose Rd, ClitheroeLancashire | 16,536 | 4 |
| 25 | Primrose Rd to B6478Lancashire | 10,796 | 9 |
| 26 | B6478 to Green DriveLancashire | 8,011 | 6 |
| 27 | Green Drive, Clitheroe to A59Lancashire | 7,290 | 9 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A671 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.
A671 traffic by vehicle type
Cars and taxis make up 82.8% of the vehicle miles on the A671. HGVs account for 2.1%, rising to 4.2% on road to Meadows Ave, Bacup to A646.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.8% |
| 2001 | 3.3% |
| 2002 | 3.5% |
| 2003 | 3.8% |
| 2004 | 4.0% |
| 2005 | 3.7% |
| 2006 | 3.6% |
| 2007 | 3.7% |
| 2008 | 3.4% |
| 2009 | 2.9% |
| 2010 | 2.9% |
| 2011 | 2.9% |
| 2012 | 2.7% |
| 2013 | 2.7% |
| 2014 | 2.5% |
| 2015 | 2.5% |
| 2016 | 2.3% |
| 2017 | 2.3% |
| 2018 | 2.3% |
| 2019 | 2.3% |
| 2020 | 2.6% |
| 2021 | 2.5% |
| 2022 | 2.4% |
| 2023 | 2.2% |
| 2024 | 2.1% |
| 2025 | 2.1% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A671 traffic trend
Traffic on the A671 came to 142 million vehicle miles in 2025. At the count points present in both years, it is up 4.2% on 2019, before the pandemic, and up 5.6% on 2015.
Vehicle miles a year
Like for like, traffic is up 3.8% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 137m |
| 2001 | 138m |
| 2002 | 143m |
| 2003 | 140m |
| 2004 | 138m |
| 2005 | 138m |
| 2006 | 139m |
| 2007 | 136m |
| 2008 | 134m |
| 2009 | 134m |
| 2010 | 135m |
| 2011 | 135m |
| 2012 | 132m |
| 2013 | 131m |
| 2014 | 133m |
| 2015 | 134m |
| 2016 | 137m |
| 2017 | 136m |
| 2018 | 136m |
| 2019 | 136m |
| 2020 | 109m |
| 2021 | 121m |
| 2022 | 133m |
| 2023 | 136m |
| 2024 | 140m |
| 2025 | 142m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 11,472 |
| 2001 | 11,548 |
| 2002 | 11,996 |
| 2003 | 11,710 |
| 2004 | 11,538 |
| 2005 | 11,527 |
| 2006 | 11,633 |
| 2007 | 11,404 |
| 2008 | 11,185 |
| 2009 | 11,223 |
| 2010 | 11,348 |
| 2011 | 11,295 |
| 2012 | 11,018 |
| 2013 | 10,931 |
| 2014 | 11,113 |
| 2015 | 11,238 |
| 2016 | 11,479 |
| 2017 | 11,416 |
| 2018 | 11,379 |
| 2019 | 11,447 |
| 2020 | 9,136 |
| 2021 | 10,150 |
| 2022 | 11,143 |
| 2023 | 11,413 |
| 2024 | 11,765 |
| 2025 | 11,904 |
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, 4 of the 30 count points were counted; DfT estimated the rest from earlier counts and local trends.
A671 collisions
Police recorded 270 collisions with the A671 as the first road from 2021 to 2025, 94 of them fatal or serious, including 4 fatal. That is 40.3 per 100 million vehicle miles, higher than the 31.5 for all A-roads in Great Britain. On average there were 1.7 a year for each mile of road.
Reported collisions by year
Up 10.0% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 35 | 15 |
| 2022 | 38 | 22 |
| 2023 | 37 | 19 |
| 2024 | 34 | 15 |
| 2025 | 32 | 23 |
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 |
|---|---|
| A646 to A678 Lancashire · 28 collisions | 81.1 |
| A6066 to A681 Lancashire · 12 collisions | 78.9 |
| A664 to A640 Rochdale · 10 collisions | 54.6 |
| A663 to A664 Oldham, Rochdale · 31 collisions | 52.8 |
| A6048 to A663 Oldham · 11 collisions | 48.4 |
| road to Meadows Ave, Bacup to A646 Lancashire · 20 collisions | 40.0 |
| B6377 Shawclough Rd to A6066 Lancashire · 29 collisions | 39.8 |
| A58 to B6377 Shawclough Rd Rochdale, Lancashire · 10 collisions | 26.2 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 64 collisions were recorded at junctions where the A671 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 A671
In route order. Each is the highway authority DfT files the count points under.
- Oldham
- Rochdale
- Lancashire
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 | 30 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 270 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.