Trunk A-road
A631 traffic and collisions
The A631 is a trunk A-road of 63.8 miles, from Lincolnshire to Sheffield. This page covers its traffic at 27 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 234m vehicle miles
- Average daily traffic 10,050 vehicles a day, both directions
- Busiest section 33,917 A630 Centenary Way to A630 Rotherway
- HGV share 4.3% of vehicle miles
- Traffic since 2019 −0.1% same count points
- Collisions, 2021 to 2025 363 32.8 per 100m vehicle miles
How busy is the A631?
On an average day in 2025, 10,050 vehicles passed each point on the A631, counting both directions. The busiest section is A630 Centenary Way to A630 Rotherway (Rotherham), with 33,917 a day; the quietest listed is A46 to A1103, with 3,007.
Busiest sections, 2025
A630 Centenary Way to A630 Rotherway carries 3.4 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A630 Centenary Way to A630 Rotherway Rotherham · 0.7 mi · HGVs 5.1% | 33,917 |
| A618 to A630 Rotherham · 0.7 mi · HGVs 1.1% | 33,629 |
| M18 to A6021 Rotherham · 2.7 mi · HGVs 1.1% | 30,141 |
| A6123 to A618 Rotherham · 0.7 mi · HGVs 1.3% | 27,359 |
| A634 to M18 Rotherham · 2.0 mi · HGVs 4.1% | 21,368 |
| A6021 to A6123 Rotherham · 0.8 mi · HGVs 1.1% | 18,355 |
| A156 to A620 Lincolnshire, Nottinghamshire · 2.3 mi · HGVs 4.0% | 16,774 |
| M1 to A6102 Sheffield · 1.4 mi · HGVs 8.7% | 15,287 |
| A638 to A60 Doncaster · 4.3 mi · HGVs 3.2% | 12,998 |
| A620 to A161 Nottinghamshire · 0.9 mi · HGVs 5.3% | 12,405 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Lincolnshire to Sheffield · 63.8 miles
A631 traffic and collisions by section
22 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 1 short link roads and spurs (0.7 miles) count in the road’s totals but are not listed.
Show all 22 sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A157 to B1202Lincolnshire | 3,917 | 40 |
| 2 | B1202 to A46Lincolnshire | 5,566 | 7 |
| 3 | A46 to A1103Lincolnshire | 3,007 | 5 |
| 4 | A1103 to A15(T)Lincolnshire | 5,196 | 15 |
| 5 | A15 to B1398Lincolnshire | 5,947 | 3 |
| 6 | B1398 to A156/A159Lincolnshire | 8,503 | 23 |
| 7 | A156 Bridge Street to A159/A156 Ashcroft RoadLincolnshire | 12,203 | 3 |
| 8 | A156 to A620Lincolnshire, Nottinghamshire | 16,774 | 10 |
| 9 | A620 to A161Nottinghamshire | 12,405 | 3 |
| 10 | A161 to B1403Nottinghamshire | 9,780 | 14 |
| 11 | B1403 (w) to A638Nottinghamshire, Doncaster | 7,889 | 18 |
| 12 | A638 to A60Doncaster | 12,998 | 19 |
| 13 | A60 to Quilter RdDoncaster, Rotherham | 5,991 | 12 |
| 14 | Quilter Rd to A634Rotherham | 7,552 | 14 |
| 15 | A634 to M18Rotherham | 21,368 | 23 |
| 16 | M18 to A6021Rotherham | 30,141 | 28 |
| 17 | A6021 to A6123Rotherham | 18,355 | 10 |
| 18 | A6123 to A618Rotherham | 27,359 | 13 |
| 19 | A618 to A630Rotherham | 33,629 | 12 |
| 20 | A630 Centenary Way to A630 RotherwayRotherham | 33,917 | 17 |
| 21 | A630 to M1Rotherham, Sheffield | 10,942 | 41 |
| 22 | M1 to A6102Sheffield | 15,287 | 24 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A631 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.
A631 traffic by vehicle type
Cars and taxis make up 77.9% of the vehicle miles on the A631. HGVs account for 4.3%, rising to 10.5% on A15 to B1398.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 6.8% |
| 2001 | 6.2% |
| 2002 | 6.4% |
| 2003 | 6.3% |
| 2004 | 6.4% |
| 2005 | 6.3% |
| 2006 | 6.1% |
| 2007 | 6.5% |
| 2008 | 6.1% |
| 2009 | 5.6% |
| 2010 | 5.2% |
| 2011 | 5.2% |
| 2012 | 4.9% |
| 2013 | 4.9% |
| 2014 | 5.0% |
| 2015 | 4.6% |
| 2016 | 4.3% |
| 2017 | 4.5% |
| 2018 | 4.4% |
| 2019 | 4.5% |
| 2020 | 5.5% |
| 2021 | 5.1% |
| 2022 | 4.8% |
| 2023 | 4.6% |
| 2024 | 4.4% |
| 2025 | 4.3% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A631 traffic trend
Traffic on the A631 came to 234 million vehicle miles in 2025. At the count points present in both years, it is about the same as in 2019, before the pandemic, and down 3.5% on 2015.
Vehicle miles a year
Like for like, traffic is up 11.0% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 211m |
| 2001 | 214m |
| 2002 | 220m |
| 2003 | 218m |
| 2004 | 232m |
| 2005 | 226m |
| 2006 | 229m |
| 2007 | 235m |
| 2008 | 233m |
| 2009 | 231m |
| 2010 | 221m |
| 2011 | 223m |
| 2012 | 222m |
| 2013 | 224m |
| 2014 | 229m |
| 2015 | 233m |
| 2016 | 241m |
| 2017 | 231m |
| 2018 | 236m |
| 2019 | 234m |
| 2020 | 180m |
| 2021 | 203m |
| 2022 | 219m |
| 2023 | 223m |
| 2024 | 229m |
| 2025 | 234m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 9,159 |
| 2001 | 9,255 |
| 2002 | 9,540 |
| 2003 | 9,456 |
| 2004 | 10,074 |
| 2005 | 9,804 |
| 2006 | 9,906 |
| 2007 | 10,199 |
| 2008 | 10,102 |
| 2009 | 10,030 |
| 2010 | 9,593 |
| 2011 | 9,669 |
| 2012 | 9,627 |
| 2013 | 9,695 |
| 2014 | 9,911 |
| 2015 | 10,120 |
| 2016 | 10,446 |
| 2017 | 10,013 |
| 2018 | 10,125 |
| 2019 | 10,059 |
| 2020 | 7,719 |
| 2021 | 8,734 |
| 2022 | 9,397 |
| 2023 | 9,592 |
| 2024 | 9,823 |
| 2025 | 10,050 |
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 27 count points were counted; DfT estimated the rest from earlier counts and local trends.
A631 collisions
Police recorded 363 collisions with the A631 as the first road from 2021 to 2025, 127 of them fatal or serious, including 11 fatal. That is 32.8 per 100 million vehicle miles, close to 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
Up 2.7% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 57 | 16 |
| 2022 | 48 | 25 |
| 2023 | 40 | 34 |
| 2024 | 45 | 23 |
| 2025 | 47 | 28 |
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 |
|---|---|
| Quilter Rd to A634 Rotherham · 14 collisions | 116.4 |
| A630 to M1 Rotherham, Sheffield · 41 collisions | 115.1 |
| M1 to A6102 Sheffield · 24 collisions | 72.5 |
| A157 to B1202 Lincolnshire · 40 collisions | 43.7 |
| A6021 to A6123 Rotherham · 10 collisions | 41.7 |
| A630 Centenary Way to A630 Rotherway Rotherham · 17 collisions | 40.9 |
| A6123 to A618 Rotherham · 13 collisions | 38.9 |
| A60 to Quilter Rd Doncaster, Rotherham · 12 collisions | 37.7 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 31 collisions were recorded at junctions where the A631 was the second road; they are not in the figures above. Fatal or serious uses DfT’s adjusted serious figures. 97.5% of the collisions could be placed on a section. How we count collisions
Council areas on the A631
In route order. Each is the highway authority DfT files the count points under.
- Lincolnshire
- Nottinghamshire
- Doncaster
- Rotherham
- Sheffield
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 | 27 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 363 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.