A-road
A605 traffic and collisions
The A605 is an A-road of 37.1 miles, from North Northamptonshire to Cambridgeshire. This page covers its traffic at 19 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 213m vehicle miles
- Average daily traffic 15,735 vehicles a day, both directions
- Busiest section 24,145 A14 to A427
- HGV share 8.9% of vehicle miles
- Traffic since 2019 +3.7% same count points
- Collisions, 2021 to 2025 173 17.8 per 100m vehicle miles
How busy is the A605?
On an average day in 2025, 15,735 vehicles passed each point on the A605, counting both directions. The busiest section is A14 to A427 (North Northamptonshire), with 24,145 a day; the quietest listed is Guildenburgh Crescent to A141, with 8,548.
Busiest sections, 2025
A14 to A427 carries 1.5 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A14 to A427 North Northamptonshire · 7.8 mi · HGVs 12.2% | 24,145 |
| A427 to A1(M) North Northamptonshire, Cambridgeshire · 7.7 mi · HGVs 11.7% | 20,292 |
| A1139 to A1260 Peterborough · 1.7 mi · HGVs 1.0% | 14,787 |
| A1260 to A1129 Peterborough · 1.0 mi · HGVs 1.0% | 14,674 |
| Stranhan Way roundabout before on slip for fletton Park to Junction A605/Crossway Hand Peterborough, Cambridgeshire · 5.0 mi · HGVs 7.9% | 13,981 |
| A1129 to B1091 Peterborough · 0.5 mi · HGVs 0.5% | 12,680 |
| A15 to A1129 Peterborough · 0.7 mi · HGVs 0.4% | 12,578 |
| Crossway Hand to Guildenburgh Crescent Cambridgeshire · 1.5 mi · HGVs 5.1% | 12,310 |
| A1129 to A15 Peterborough · 0.7 mi · HGVs 0.6% | 12,212 |
| A605 split to A1139 Peterborough · 0.8 mi · HGVs 0.8% | 10,113 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
North Northamptonshire to Cambridgeshire · 37.1 miles
A605 traffic and collisions by section
13 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 4 short link roads and spurs (1.0 miles) count in the road’s totals but are not listed.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A14 to A427North Northamptonshire | 24,145 | 25 |
| 2 | A427 to A1(M)North Northamptonshire, Cambridgeshire | 20,292 | 32 |
| 3 | A1 to A605 splitCambridgeshire | 3,098 | 0 |
| 4 | A605 split to A1139Peterborough | 10,113 | 4 |
| 5 | A1139 to A1260Peterborough | 14,787 | 7 |
| 6 | A1260 to A1129Peterborough | 14,674 | 14 |
| 7 | A1129 to A15Peterborough | 12,212 | 13 |
| 8 | A15 to A1129Peterborough | 12,578 | 12 |
| 9 | A1129 to B1091Peterborough | 12,680 | 15 |
| 10 | A1139 to A1139 link to A605 spurPeterborough | 12,434 | fewer than 3 |
| 11 | Stranhan Way roundabout before on slip for fletton Park to Junction A605/Crossway HandPeterborough, Cambridgeshire | 13,981 | 16 |
| 12 | Crossway Hand to Guildenburgh CrescentCambridgeshire | 12,310 | 13 |
| 13 | Guildenburgh Crescent to A141Cambridgeshire | 8,548 | 14 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A605 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.
A605 traffic by vehicle type
Cars and taxis make up 74.6% of the vehicle miles on the A605. HGVs account for 8.9%, rising to 12.2% on A14 to A427.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 10.6% |
| 2001 | 10.5% |
| 2002 | 9.6% |
| 2003 | 9.9% |
| 2004 | 9.8% |
| 2005 | 11.0% |
| 2006 | 10.5% |
| 2007 | 10.5% |
| 2008 | 10.2% |
| 2009 | 9.4% |
| 2010 | 9.1% |
| 2011 | 8.8% |
| 2012 | 8.9% |
| 2013 | 9.0% |
| 2014 | 9.1% |
| 2015 | 9.1% |
| 2016 | 9.2% |
| 2017 | 9.5% |
| 2018 | 9.2% |
| 2019 | 9.0% |
| 2020 | 10.6% |
| 2021 | 10.3% |
| 2022 | 10.0% |
| 2023 | 9.4% |
| 2024 | 9.1% |
| 2025 | 8.9% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A605 traffic trend
Traffic on the A605 came to 213 million vehicle miles in 2025. At the count points present in both years, it is up 3.7% on 2019, before the pandemic, and up 4.0% on 2015.
Vehicle miles a year
Like for like, traffic is up 18.4% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 167m |
| 2001 | 167m |
| 2002 | 176m |
| 2003 | 168m |
| 2004 | 177m |
| 2005 | 180m |
| 2006 | 179m |
| 2007 | 181m |
| 2008 | 181m |
| 2009 | 180m |
| 2010 | 178m |
| 2011 | 179m |
| 2012 | 180m |
| 2013 | 182m |
| 2014 | 187m |
| 2015 | 193m |
| 2016 | 192m |
| 2017 | 193m |
| 2018 | 199m |
| 2019 | 198m |
| 2020 | 152m |
| 2021 | 167m |
| 2022 | 187m |
| 2023 | 199m |
| 2024 | 205m |
| 2025 | 213m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 13,446 |
| 2001 | 13,418 |
| 2002 | 14,114 |
| 2003 | 13,532 |
| 2004 | 14,209 |
| 2005 | 14,244 |
| 2006 | 14,054 |
| 2007 | 14,285 |
| 2008 | 14,258 |
| 2009 | 14,152 |
| 2010 | 14,016 |
| 2011 | 14,063 |
| 2012 | 13,886 |
| 2013 | 14,012 |
| 2014 | 14,350 |
| 2015 | 14,860 |
| 2016 | 14,807 |
| 2017 | 14,862 |
| 2018 | 14,984 |
| 2019 | 14,976 |
| 2020 | 11,511 |
| 2021 | 12,637 |
| 2022 | 14,112 |
| 2023 | 14,947 |
| 2024 | 15,457 |
| 2025 | 15,735 |
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 (76.0% of today’s road for 2019). In 2025, 2 of the 19 count points were counted; DfT estimated the rest from earlier counts and local trends.
A605 collisions
Police recorded 173 collisions with the A605 as the first road from 2021 to 2025, 39 of them fatal or serious, including 8 fatal. That is 17.8 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 0.9 a year for each mile of road.
Reported collisions by year
Down 2.9% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 26 | 8 |
| 2022 | 27 | 9 |
| 2023 | 30 | 10 |
| 2024 | 26 | 4 |
| 2025 | 24 | 9 |
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 |
|---|---|
| A1129 to B1091 Peterborough · 15 collisions | 139.0 |
| A1129 to A15 Peterborough · 13 collisions | 95.5 |
| A15 to A1129 Peterborough · 12 collisions | 89.4 |
| A1260 to A1129 Peterborough · 14 collisions | 62.7 |
| Crossway Hand to Guildenburgh Crescent Cambridgeshire · 13 collisions | 40.2 |
| Stranhan Way roundabout before on slip for fletton Park to Junction A605/Crossway Hand Peterborough, Cambridgeshire · 16 collisions | 34.4 |
| A427 to A1(M) North Northamptonshire, Cambridgeshire · 32 collisions | 18.7 |
| Guildenburgh Crescent to A141 Cambridgeshire · 14 collisions | 12.5 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 27 collisions were recorded at junctions where the A605 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 A605
In route order. Each is the highway authority DfT files the count points under.
- North Northamptonshire
- Cambridgeshire
- Peterborough
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 | 173 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.