A-road
A306 traffic and collisions
The A306 is an A-road of 3.9 miles, from Hammersmith and Fulham to Wandsworth. This page covers its traffic at 7 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 16m vehicle miles
- Average daily traffic 11,084 vehicles a day, both directions
- Busiest section 15,820 A3(T) to B306
- HGV share 2.0% of vehicle miles
- Traffic since 2019 −30.9% same count points
- Collisions, 2021 to 2025 106 135.8 per 100m vehicle miles
How busy is the A306?
On an average day in 2025, 11,084 vehicles passed each point on the A306, counting both directions. The busiest section is A3(T) to B306 (Wandsworth), with 15,820 a day; the quietest listed is Riverview Gardens to A3003 / Queen Elizabeth Way, with 4,957.
Busiest sections, 2025
A3(T) to B306 carries 1.4 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A3(T) to B306 Wandsworth · 1.7 mi · HGVs 2.0% | 15,820 |
| A205(T) to A3003 Richmond upon Thames · 0.8 mi · HGVs 2.3% | 7,409 |
| Riverview Gardens to A3003 / Queen Elizabeth Way Richmond upon Thames · 0.9 mi · HGVs 1.7% | 4,957 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Hammersmith and Fulham to Wandsworth · 3.9 miles
A306 traffic and collisions by section
6 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 | A4 to A219/A315Hammersmith and Fulham | 29,436 | 3 |
| 2 | Hammersmith Flyover (Roundabout) to Rutland Grove Road IntersectionHammersmith and Fulham | 567 | fewer than 3 |
| 3 | Rutland Grove Road Intersection to Riverview GardensHammersmith and Fulham, Richmond upon Thames | 0 | fewer than 3 |
| 4 | Riverview Gardens to A3003 / Queen Elizabeth WayRichmond upon Thames | 4,957 | 11 |
| 5 | A205(T) to A3003Richmond upon Thames | 7,409 | 21 |
| 6 | A3(T) to B306Wandsworth | 15,820 | 69 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A306 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.
A306 traffic by vehicle type
Cars and taxis make up 71.8% of the vehicle miles on the A306. HGVs account for 2.0%.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 1.8% |
| 2001 | 1.6% |
| 2002 | 1.8% |
| 2003 | 1.9% |
| 2004 | 2.2% |
| 2005 | 2.2% |
| 2006 | 2.1% |
| 2007 | 1.8% |
| 2008 | 1.5% |
| 2009 | 1.5% |
| 2010 | 1.6% |
| 2011 | 1.6% |
| 2012 | 2.3% |
| 2013 | 2.3% |
| 2014 | 2.0% |
| 2015 | 2.2% |
| 2016 | 2.2% |
| 2017 | 1.7% |
| 2018 | 1.7% |
| 2019 | 1.6% |
| 2020 | 2.0% |
| 2021 | 2.2% |
| 2022 | 2.2% |
| 2023 | 2.2% |
| 2024 | 2.2% |
| 2025 | 2.0% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A306 traffic trend
Traffic on the A306 came to 15.8 million vehicle miles in 2025. At the count points present in both years, it is down 30.9% on 2019, before the pandemic, and down 50.4% on 2015.
Vehicle miles a year
Like for like, traffic is down 30.7% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 32m |
| 2001 | 32m |
| 2002 | 33m |
| 2003 | 32m |
| 2004 | 33m |
| 2005 | 33m |
| 2006 | 32m |
| 2007 | 34m |
| 2008 | 34m |
| 2009 | 33m |
| 2010 | 32m |
| 2011 | 32m |
| 2012 | 36m |
| 2013 | 37m |
| 2014 | 37m |
| 2015 | 37m |
| 2016 | 30m |
| 2017 | 30m |
| 2018 | 30m |
| 2019 | 30m |
| 2020 | 19m |
| 2021 | 15m |
| 2022 | 15m |
| 2023 | 16m |
| 2024 | 16m |
| 2025 | 16m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 23,172 |
| 2001 | 23,179 |
| 2002 | 23,990 |
| 2003 | 23,369 |
| 2004 | 24,101 |
| 2005 | 23,817 |
| 2006 | 23,305 |
| 2007 | 24,404 |
| 2008 | 24,384 |
| 2009 | 23,985 |
| 2010 | 23,044 |
| 2011 | 23,263 |
| 2012 | 26,269 |
| 2013 | 26,505 |
| 2014 | 26,745 |
| 2015 | 26,776 |
| 2016 | 21,266 |
| 2017 | 21,701 |
| 2018 | 21,317 |
| 2019 | 21,285 |
| 2020 | 13,409 |
| 2021 | 10,682 |
| 2022 | 10,757 |
| 2023 | 11,069 |
| 2024 | 11,225 |
| 2025 | 11,084 |
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 (69.2% of today’s road for 2019). In 2025, 2 of the 7 count points were counted; DfT estimated the rest from earlier counts and local trends.
A306 collisions
Police recorded 106 collisions with the A306 as the first road from 2021 to 2025, fewer than 3 of them fatal or serious. That is 135.8 per 100 million vehicle miles, higher than the 31.5 for all A-roads in Great Britain. On average there were 5.4 a year for each mile of road.
Reported collisions by year
Down 5.3% from 2021 to 2025.
| Year | Collisions |
|---|---|
| 2021 | 19 |
| 2022 | 30 |
| 2023 | 22 |
| 2024 | 17 |
| 2025 | 18 |
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 |
|---|---|
| A205(T) to A3003 Richmond upon Thames · 21 collisions | 201.4 |
| A3(T) to B306 Wandsworth · 69 collisions | 142.7 |
| Riverview Gardens to A3003 / Queen Elizabeth Way Richmond upon Thames · 11 collisions | 135.7 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 33 collisions were recorded at junctions where the A306 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 A306
In route order. Each is the highway authority DfT files the count points under.
- Hammersmith and Fulham
- Richmond upon Thames
- Wandsworth
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 | 7 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 106 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.