A-road
A323 traffic and collisions
The A323 is an A-road of 17.2 miles, from Surrey to Hampshire. This page covers its traffic at 13 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 70m vehicle miles
- Average daily traffic 11,145 vehicles a day, both directions
- Busiest section 15,295 B3208 to A325
- HGV share 1.7% of vehicle miles
- Traffic since 2019 −8.4% same count points
- Collisions, 2021 to 2025 171 50.5 per 100m vehicle miles
How busy is the A323?
On an average day in 2025, 11,145 vehicles passed each point on the A323, counting both directions. The busiest section is B3208 to A325 (Hampshire), with 15,295 a day; the quietest listed is Velmead Rd to B3013, with 5,779.
Busiest sections, 2025
B3208 to A325 carries 1.4 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| B3208 to A325 Hampshire · 1.9 mi · HGVs 1.1% | 15,295 |
| A324 to B3411 Surrey · 0.7 mi · HGVs 2.0% | 14,424 |
| Rydes Hill Rd, Guildford to A324 Surrey · 4.8 mi · HGVs 1.5% | 10,905 |
| B3411 to B3206 Surrey · 1.1 mi · HGVs 2.1% | 10,586 |
| A325 to Velmead Rd, Fleet Hampshire · 2.7 mi · HGVs 1.7% | 10,473 |
| A30 to Elvetham Heath, Fleet Hampshire · 2.3 mi · HGVs 2.9% | 9,445 |
| Rydes Hill Rd to A322 Surrey · 0.7 mi · HGVs 1.9% | 9,143 |
| A3013 to Elvetham Heath Hampshire · 1.0 mi · HGVs 1.5% | 8,781 |
| Velmead Rd to B3013 Hampshire · 1.1 mi · HGVs 1.6% | 5,779 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Surrey to Hampshire · 17.2 miles
A323 traffic and collisions by section
12 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 | Rydes Hill Rd to A322Surrey | 9,143 | 14 |
| 2 | Rydes Hill Rd, Guildford to A324Surrey | 10,905 | 26 |
| 3 | A324 to B3411Surrey | 14,424 | 9 |
| 4 | B3411 to B3206Surrey | 10,586 | 7 |
| 5 | B3206 to A331Surrey | 17,136 | 20 |
| 6 | A331 to B3208Surrey, Hampshire | 24,928 | 14 |
| 7 | B3208 to A325Hampshire | 15,295 | 36 |
| 8 | A325 to Velmead Rd, FleetHampshire | 10,473 | 16 |
| 9 | Velmead Rd to B3013Hampshire | 5,779 | 4 |
| 10 | B3013 to A3013Hampshire | 13,360 | 5 |
| 11 | A3013 to Elvetham HeathHampshire | 8,781 | 6 |
| 12 | A30 to Elvetham Heath, FleetHampshire | 9,445 | 14 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A323 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.
A323 traffic by vehicle type
Cars and taxis make up 81.6% of the vehicle miles on the A323. HGVs account for 1.7%, rising to 2.9% on A30 to Elvetham Heath, Fleet.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 2.7% |
| 2001 | 2.9% |
| 2002 | 2.8% |
| 2003 | 2.7% |
| 2004 | 2.9% |
| 2005 | 2.4% |
| 2006 | 2.7% |
| 2007 | 2.2% |
| 2008 | 2.1% |
| 2009 | 1.9% |
| 2010 | 1.9% |
| 2011 | 1.9% |
| 2012 | 1.8% |
| 2013 | 1.9% |
| 2014 | 1.9% |
| 2015 | 1.8% |
| 2016 | 1.8% |
| 2017 | 1.7% |
| 2018 | 1.7% |
| 2019 | 1.7% |
| 2020 | 1.9% |
| 2021 | 1.9% |
| 2022 | 1.7% |
| 2023 | 1.7% |
| 2024 | 1.7% |
| 2025 | 1.7% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A323 traffic trend
Traffic on the A323 came to 70 million vehicle miles in 2025. At the count points present in both years, it is down 8.4% on 2019, before the pandemic, and down 9.3% on 2015.
Vehicle miles a year
Like for like, traffic is down 11.5% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 79m |
| 2001 | 77m |
| 2002 | 81m |
| 2003 | 81m |
| 2004 | 79m |
| 2005 | 80m |
| 2006 | 79m |
| 2007 | 80m |
| 2008 | 78m |
| 2009 | 77m |
| 2010 | 77m |
| 2011 | 78m |
| 2012 | 74m |
| 2013 | 74m |
| 2014 | 76m |
| 2015 | 77m |
| 2016 | 77m |
| 2017 | 76m |
| 2018 | 77m |
| 2019 | 76m |
| 2020 | 58m |
| 2021 | 64m |
| 2022 | 67m |
| 2023 | 68m |
| 2024 | 70m |
| 2025 | 70m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 12,633 |
| 2001 | 12,353 |
| 2002 | 12,988 |
| 2003 | 12,961 |
| 2004 | 12,725 |
| 2005 | 12,754 |
| 2006 | 12,695 |
| 2007 | 12,872 |
| 2008 | 12,481 |
| 2009 | 12,400 |
| 2010 | 12,328 |
| 2011 | 12,486 |
| 2012 | 11,881 |
| 2013 | 11,871 |
| 2014 | 12,192 |
| 2015 | 12,321 |
| 2016 | 12,385 |
| 2017 | 12,150 |
| 2018 | 12,187 |
| 2019 | 12,172 |
| 2020 | 9,265 |
| 2021 | 10,189 |
| 2022 | 10,643 |
| 2023 | 10,855 |
| 2024 | 11,106 |
| 2025 | 11,145 |
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, 2 of the 13 count points were counted; DfT estimated the rest from earlier counts and local trends.
A323 collisions
Police recorded 171 collisions with the A323 as the first road from 2021 to 2025, 54 of them fatal or serious. That is 50.5 per 100 million vehicle miles, higher than the 31.5 for all A-roads in Great Britain. On average there were 2.0 a year for each mile of road.
Reported collisions by year
Up 13.5% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 26 | 11 |
| 2022 | 25 | 12 |
| 2023 | 21 | 10 |
| 2024 | 16 | 8 |
| 2025 | 29 | 13 |
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 |
|---|---|
| Rydes Hill Rd to A322 Surrey · 14 collisions | 123.8 |
| B3208 to A325 Hampshire · 36 collisions | 67.1 |
| A30 to Elvetham Heath, Fleet Hampshire · 14 collisions | 36.7 |
| A325 to Velmead Rd, Fleet Hampshire · 16 collisions | 31.0 |
| Rydes Hill Rd, Guildford to A324 Surrey · 26 collisions | 28.3 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 10 collisions were recorded at junctions where the A323 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 A323
In route order. Each is the highway authority DfT files the count points under.
- Surrey
- Hampshire
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 | 13 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 171 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.