A-road
A334 traffic and collisions
The A334 is an A-road of 9.2 miles, from Hampshire to Southampton. This page covers its traffic at 8 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 56m vehicle miles
- Average daily traffic 16,690 vehicles a day, both directions
- Busiest section 35,241 B3035 Botley Rd to M27
- HGV share 2.5% of vehicle miles
- Traffic since 2019 +5.2% same count points
- Collisions, 2021 to 2025 123 47.7 per 100m vehicle miles
How busy is the A334?
On an average day in 2025, 16,690 vehicles passed each point on the A334, counting both directions. The busiest section is B3035 Botley Rd to M27 (Hampshire), with 35,241 a day; the quietest listed is B2177 to B3035, with 8,437.
Busiest sections, 2025
B3035 Botley Rd to M27 carries 2.1 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| B3035 Botley Rd to M27 Hampshire · 0.8 mi · HGVs 2.8% | 35,241 |
| M27 to A27 Hampshire · 0.6 mi · HGVs 1.1% | 26,574 |
| A3051 to B3033 Lwr Northam Rd Hampshire · 1.4 mi · HGVs 3.6% | 19,114 |
| B3033 Lwr Northam Rd to B3035 Botley Rd Hampshire · 0.8 mi · HGVs 2.6% | 18,857 |
| A27 to A3024 Southampton · 1.3 mi · HGVs 1.0% | 17,023 |
| A32 to B2177 Hampshire · 1.3 mi · HGVs 2.6% | 13,942 |
| B2177 to B3035 Hampshire · 2.8 mi · HGVs 3.2% | 8,437 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Hampshire to Southampton · 9.2 miles
A334 traffic and collisions by section
8 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A32 to B2177Hampshire | 13,942 | 19 |
| 2 | B2177 to B3035Hampshire | 8,437 | 21 |
| 3 | B3035 to A3051Hampshire | 18,460 | 12 |
| 4 | A3051 to B3033 Lwr Northam RdHampshire | 19,114 | 18 |
| 5 | B3033 Lwr Northam Rd to B3035 Botley RdHampshire | 18,857 | 9 |
| 6 | B3035 Botley Rd to M27Hampshire | 35,241 | 10 |
| 7 | M27 to A27Hampshire | 26,574 | 3 |
| 8 | A27 to A3024Southampton | 17,023 | 31 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A334 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.
A334 traffic by vehicle type
Cars and taxis make up 79.8% of the vehicle miles on the A334. HGVs account for 2.5%, rising to 3.6% on A3051 to B3033 Lwr Northam Rd.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.8% |
| 2001 | 3.4% |
| 2002 | 3.2% |
| 2003 | 3.3% |
| 2004 | 2.9% |
| 2005 | 2.9% |
| 2006 | 2.7% |
| 2007 | 2.5% |
| 2008 | 2.5% |
| 2009 | 2.8% |
| 2010 | 3.4% |
| 2011 | 3.5% |
| 2012 | 3.2% |
| 2013 | 3.2% |
| 2014 | 3.1% |
| 2015 | 2.6% |
| 2016 | 2.7% |
| 2017 | 2.6% |
| 2018 | 2.6% |
| 2019 | 2.6% |
| 2020 | 2.9% |
| 2021 | 2.9% |
| 2022 | 2.7% |
| 2023 | 2.5% |
| 2024 | 2.5% |
| 2025 | 2.5% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A334 traffic trend
Traffic on the A334 came to 56 million vehicle miles in 2025. At the count points present in both years, it is up 5.2% on 2019, before the pandemic, and about the same as in 2015.
Vehicle miles a year
Like for like, traffic is up 8.9% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 50m |
| 2001 | 49m |
| 2002 | 48m |
| 2003 | 50m |
| 2004 | 50m |
| 2005 | 49m |
| 2006 | 50m |
| 2007 | 51m |
| 2008 | 51m |
| 2009 | 53m |
| 2010 | 52m |
| 2011 | 52m |
| 2012 | 51m |
| 2013 | 50m |
| 2014 | 51m |
| 2015 | 54m |
| 2016 | 56m |
| 2017 | 53m |
| 2018 | 53m |
| 2019 | 53m |
| 2020 | 42m |
| 2021 | 46m |
| 2022 | 51m |
| 2023 | 52m |
| 2024 | 53m |
| 2025 | 56m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 15,133 |
| 2001 | 14,768 |
| 2002 | 14,737 |
| 2003 | 15,192 |
| 2004 | 15,205 |
| 2005 | 15,013 |
| 2006 | 15,188 |
| 2007 | 15,396 |
| 2008 | 15,473 |
| 2009 | 16,124 |
| 2010 | 15,707 |
| 2011 | 15,771 |
| 2012 | 15,557 |
| 2013 | 15,066 |
| 2014 | 15,566 |
| 2015 | 16,450 |
| 2016 | 16,917 |
| 2017 | 16,262 |
| 2018 | 15,747 |
| 2019 | 15,870 |
| 2020 | 12,457 |
| 2021 | 13,700 |
| 2022 | 15,135 |
| 2023 | 15,516 |
| 2024 | 15,735 |
| 2025 | 16,690 |
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, 3 of the 8 count points were counted; DfT estimated the rest from earlier counts and local trends.
A334 collisions
Police recorded 123 collisions with the A334 as the first road from 2021 to 2025, fewer than 3 of them fatal or serious. That is 47.7 per 100 million vehicle miles, higher than the 31.5 for all A-roads in Great Britain. On average there were 2.7 a year for each mile of road.
Reported collisions by year
Up 22.7% from 2021 to 2025.
| Year | Collisions |
|---|---|
| 2021 | 22 |
| 2022 | 28 |
| 2023 | 23 |
| 2024 | 23 |
| 2025 | 27 |
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 |
|---|---|
| A27 to A3024 Southampton · 31 collisions | 94.5 |
| A32 to B2177 Hampshire · 19 collisions | 61.4 |
| B2177 to B3035 Hampshire · 21 collisions | 51.4 |
| A3051 to B3033 Lwr Northam Rd Hampshire · 18 collisions | 41.4 |
| B3035 Botley Rd to M27 Hampshire · 10 collisions | 20.2 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 28 collisions were recorded at junctions where the A334 was the second road; they are not in the figures above. Fatal or serious uses DfT’s adjusted serious figures. 100.0% of the collisions could be placed on a section. How we count collisions
Council areas on the A334
In route order. Each is the highway authority DfT files the count points under.
- Hampshire
- Southampton
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 | 8 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 123 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.