A-road
A3203 traffic and collisions
The A3203 is an A-road of 1.0 miles, from Westminster to Southwark. This page covers its traffic at 5 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 4.2m vehicle miles
- Average daily traffic 11,600 vehicles a day, both directions
- Busiest section 19,503 A3212 to A3036
- HGV share 4.5% of vehicle miles
- Traffic since 2019 −17.4% same count points
- Collisions, 2021 to 2025 51 240.5 per 100m vehicle miles
How busy is the A3203?
On an average day in 2025, 11,600 vehicles passed each point on the A3203, counting both directions. The busiest section is A3212 to A3036 (Westminster, Lambeth), with 19,503 a day; the quietest listed is A302 to A201/A3202, with 466.
Busiest sections, 2025
A3212 to A3036 carries 1.7 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A3212 to A3036 Westminster, Lambeth · 0.2 mi · HGVs 4.0% | 19,503 |
| A3036 to A23 Lambeth · 0.4 mi · HGVs 5.4% | 13,217 |
| A23 to A302 Southwark · 0.2 mi · HGVs 3.7% | 11,599 |
| A302 to A201/A3202 Southwark · 0.2 mi · HGVs 0.9% | 466 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Westminster to Southwark · 1.0 miles
A3203 traffic and collisions by section
4 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 | A3212 to A3036Westminster, Lambeth | 19,503 | 9 |
| 2 | A3036 to A23Lambeth | 13,217 | 33 |
| 3 | A23 to A302Southwark | 11,599 | 3 |
| 4 | A302 to A201/A3202Southwark | 466 | 6 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A3203 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.
A3203 traffic by vehicle type
Cars and taxis make up 56.3% of the vehicle miles on the A3203. HGVs account for 4.5%.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 5.2% |
| 2001 | 5.3% |
| 2002 | 3.1% |
| 2003 | 3.1% |
| 2004 | 4.0% |
| 2005 | 4.1% |
| 2006 | 3.9% |
| 2007 | 3.4% |
| 2008 | 4.2% |
| 2009 | 4.0% |
| 2010 | 4.1% |
| 2011 | 4.2% |
| 2012 | 4.6% |
| 2013 | 4.9% |
| 2014 | 5.4% |
| 2015 | 5.3% |
| 2016 | 5.6% |
| 2017 | 5.5% |
| 2018 | 3.7% |
| 2019 | 3.7% |
| 2020 | 4.0% |
| 2021 | 4.0% |
| 2022 | 4.9% |
| 2023 | 4.8% |
| 2024 | 4.6% |
| 2025 | 4.5% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A3203 traffic trend
Traffic on the A3203 came to 4.2 million vehicle miles in 2025. At the count points present in both years, it is down 17.4% on 2019, before the pandemic, and down 15.4% on 2015.
Vehicle miles a year
Like for like, traffic is down 45.0% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 8.2m |
| 2001 | 8.1m |
| 2002 | 7.7m |
| 2003 | 7.2m |
| 2004 | 7.0m |
| 2005 | 6.6m |
| 2006 | 6.0m |
| 2007 | 6.0m |
| 2008 | 5.6m |
| 2009 | 6.0m |
| 2010 | 5.9m |
| 2011 | 5.8m |
| 2012 | 5.7m |
| 2013 | 5.7m |
| 2014 | 5.0m |
| 2015 | 5.0m |
| 2016 | 4.6m |
| 2017 | 4.6m |
| 2018 | 5.1m |
| 2019 | 5.1m |
| 2020 | 4.1m |
| 2021 | 4.4m |
| 2022 | 4.2m |
| 2023 | 4.2m |
| 2024 | 4.3m |
| 2025 | 4.2m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 22,411 |
| 2001 | 22,118 |
| 2002 | 21,155 |
| 2003 | 19,850 |
| 2004 | 19,151 |
| 2005 | 18,166 |
| 2006 | 16,450 |
| 2007 | 16,557 |
| 2008 | 15,473 |
| 2009 | 16,309 |
| 2010 | 16,088 |
| 2011 | 15,889 |
| 2012 | 15,510 |
| 2013 | 15,489 |
| 2014 | 13,614 |
| 2015 | 13,692 |
| 2016 | 12,622 |
| 2017 | 12,602 |
| 2018 | 13,954 |
| 2019 | 14,019 |
| 2020 | 11,110 |
| 2021 | 11,935 |
| 2022 | 11,427 |
| 2023 | 11,475 |
| 2024 | 11,663 |
| 2025 | 11,600 |
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 (80.0% of today’s road for 2019). In 2025, 0 of the 5 count points were counted; DfT estimated the rest from earlier counts and local trends.
A3203 collisions
Police recorded 51 collisions with the A3203 as the first road from 2021 to 2025, 9 of them fatal or serious. That is 240.5 per 100 million vehicle miles, higher than the 31.5 for all A-roads in Great Britain. On average there were 10.2 a year for each mile of road.
Reported collisions by year
About the same in 2025 as in 2021.
| Year | Collisions |
|---|---|
| 2021 | 9 |
| 2022 | 12 |
| 2023 | 15 |
| 2024 | 6 |
| 2025 | 9 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 26 collisions were recorded at junctions where the A3203 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 A3203
In route order. Each is the highway authority DfT files the count points under.
- Westminster
- Lambeth
- Southwark
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 | 5 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 51 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.