A-road
A103 traffic and collisions
The A103 is an A-road of 3.1 miles, from Islington to Haringey. This page covers its traffic at 7 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 15m vehicle miles
- Average daily traffic 12,815 vehicles a day, both directions
- Busiest section 18,062 Middle Lane to Church Lane
- HGV share 1.9% of vehicle miles
- Traffic since 2019 −10.0% same count points
- Collisions, 2021 to 2025 204 290.0 per 100m vehicle miles
How busy is the A103?
On an average day in 2025, 12,815 vehicles passed each point on the A103, counting both directions. The busiest section is Middle Lane to Church Lane (Haringey), with 18,062 a day; the quietest listed is A503 to B540, with 10,619.
Busiest sections, 2025
Middle Lane to Church Lane carries 1.4 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| Middle Lane to Church Lane Haringey · 0.6 mi · HGVs 1.7% | 18,062 |
| A503 to B540 Islington · 1.1 mi · HGVs 1.5% | 10,619 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Islington to Haringey · 3.1 miles
A103 traffic and collisions by section
6 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 1 short link roads and spurs (0.2 miles) count in the road’s totals but are not listed.
Sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A1 to A503Islington | 12,633 | 19 |
| 2 | At A503Islington | 11,120 | 22 |
| 3 | A503 to B540Islington | 10,619 | 76 |
| 4 | B540 to A1201Haringey | 16,036 | 30 |
| 5 | Middle Lane to Church LaneHaringey | 18,062 | 48 |
| 6 | Church Lane to A504Haringey | 9,935 | 9 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A103 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.
A103 traffic by vehicle type
Cars and taxis make up 69.1% of the vehicle miles on the A103. HGVs account for 1.9%.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 2.5% |
| 2001 | 2.7% |
| 2002 | 2.4% |
| 2003 | 2.2% |
| 2004 | 2.5% |
| 2005 | 2.6% |
| 2006 | 2.4% |
| 2007 | 2.3% |
| 2008 | 2.7% |
| 2009 | 2.8% |
| 2010 | 3.0% |
| 2011 | 2.6% |
| 2012 | 3.0% |
| 2013 | 3.2% |
| 2014 | 2.8% |
| 2015 | 2.7% |
| 2016 | 2.7% |
| 2017 | 2.4% |
| 2018 | 1.8% |
| 2019 | 1.8% |
| 2020 | 1.8% |
| 2021 | 2.0% |
| 2022 | 2.0% |
| 2023 | 2.0% |
| 2024 | 1.9% |
| 2025 | 1.9% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A103 traffic trend
Traffic on the A103 came to 14.5 million vehicle miles in 2025. At the count points present in both years, it is down 10.0% on 2019, before the pandemic, and down 15.4% on 2015.
Vehicle miles a year
Like for like, traffic is down 31.5% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 22m |
| 2001 | 22m |
| 2002 | 22m |
| 2003 | 22m |
| 2004 | 20m |
| 2005 | 20m |
| 2006 | 21m |
| 2007 | 21m |
| 2008 | 21m |
| 2009 | 20m |
| 2010 | 19m |
| 2011 | 19m |
| 2012 | 18m |
| 2013 | 18m |
| 2014 | 18m |
| 2015 | 18m |
| 2016 | 17m |
| 2017 | 18m |
| 2018 | 17m |
| 2019 | 16m |
| 2020 | 13m |
| 2021 | 13m |
| 2022 | 14m |
| 2023 | 14m |
| 2024 | 15m |
| 2025 | 15m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 19,152 |
| 2001 | 18,894 |
| 2002 | 19,007 |
| 2003 | 18,736 |
| 2004 | 17,378 |
| 2005 | 17,105 |
| 2006 | 17,897 |
| 2007 | 18,054 |
| 2008 | 17,619 |
| 2009 | 16,775 |
| 2010 | 16,537 |
| 2011 | 16,277 |
| 2012 | 15,268 |
| 2013 | 15,060 |
| 2014 | 15,213 |
| 2015 | 15,348 |
| 2016 | 14,726 |
| 2017 | 14,972 |
| 2018 | 14,515 |
| 2019 | 14,245 |
| 2020 | 11,165 |
| 2021 | 11,756 |
| 2022 | 12,263 |
| 2023 | 12,293 |
| 2024 | 13,040 |
| 2025 | 12,815 |
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, 1 of the 7 count points were counted; DfT estimated the rest from earlier counts and local trends.
A103 collisions
Police recorded 204 collisions with the A103 as the first road from 2021 to 2025, 35 of them fatal or serious. That is 290.0 per 100 million vehicle miles, higher than the 31.5 for all A-roads in Great Britain. On average there were 13.2 a year for each mile of road.
Reported collisions by year
Up 8.6% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 29 | 6 |
| 2022 | 52 | 6 |
| 2023 | 30 | 6 |
| 2024 | 29 | 8 |
| 2025 | 29 | 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 |
|---|---|
| A503 to B540 Islington · 76 collisions | 357.9 |
| Middle Lane to Church Lane Haringey · 48 collisions | 272.4 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 47 collisions were recorded at junctions where the A103 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 A103
In route order. Each is the highway authority DfT files the count points under.
- Islington
- Haringey
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 | 204 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.