A-road
A814 traffic and collisions
The A814 is an A-road of 39.8 miles, from Glasgow City to Argyll & Bute. This page covers its traffic at 26 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 147m vehicle miles
- Average daily traffic 10,092 vehicles a day, both directions
- Busiest section 50,776 A814 Finnieston St to A739
- HGV share 2.2% of vehicle miles
- Traffic since 2019 −5.1% same count points
- Collisions, 2021 to 2025 145 20.4 per 100m vehicle miles
How busy is the A814?
On an average day in 2025, 10,092 vehicles passed each point on the A814, counting both directions. The busiest section is A814 Finnieston St to A739 (Glasgow City), with 50,776 a day; the quietest listed is A817 to A83, with 681.
Busiest sections, 2025
A814 Finnieston St to A739 carries 5.0 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| A814 Finnieston St to A739 Glasgow City · 2.2 mi · HGVs 1.9% | 50,776 |
| A739 to Kingsway Glasgow City · 1.5 mi · HGVs 1.8% | 22,203 |
| Kingsway to A741 Glasgow City · 0.7 mi · HGVs 2.1% | 17,795 |
| Greenhead Rd to A812 West Dunbartonshire · 1.3 mi · HGVs 2.4% | 16,668 |
| A82 to Greenhead Rd, Dumbarton West Dunbartonshire · 1.0 mi · HGVs 3.3% | 15,592 |
| A714 to A8014 Glasgow City, West Dunbartonshire · 1.3 mi · HGVs 1.7% | 15,078 |
| A804 to A814 Stobcross St Glasgow City · 0.6 mi · HGVs 2.9% | 12,870 |
| B832 Sinclair Street to Aros Rd Argyll & Bute · 2.9 mi · HGVs 1.6% | 9,162 |
| A812 to Campbell Drive, Helensburgh West Dunbartonshire, Argyll & Bute · 6.6 mi · HGVs 3.2% | 7,869 |
| Campbell Drive to B832 Sinclair Street Argyll & Bute · 1.1 mi · HGVs 2.6% | 7,276 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
Glasgow City to Argyll & Bute · 39.8 miles
A814 traffic and collisions by section
21 sections between junctions, in route order. Each is the average of its DfT count points, weighted by length. 3 short link roads and spurs (0.8 miles) count in the road’s totals but are not listed.
Show all 21 sections Tap a column heading to sort
| # | |||
|---|---|---|---|
| 1 | A8 Gorbals St to A8 SaltmarketGlasgow City | 3,594 | 0 |
| 2 | A77 to A8Glasgow City | 14,589 | 5 |
| 3 | A77 Commerce St to A77 Bridge StGlasgow City | 15,928 | 4 |
| 4 | A77 to A814 James Watt StGlasgow City | 18,175 | 3 |
| 5 | A814 James Watt St to M8/A804Glasgow City | 14,039 | 3 |
| 6 | A804 to A814 Stobcross StGlasgow City | 12,870 | 3 |
| 7 | A814 Finnieston St to A739Glasgow City | 50,776 | 26 |
| 8 | A739 to KingswayGlasgow City | 22,203 | 18 |
| 9 | Kingsway to A741Glasgow City | 17,795 | 15 |
| 10 | A714 to A8014Glasgow City, West Dunbartonshire | 15,078 | 13 |
| 11 | A8014 to A814 Station RdWest Dunbartonshire | 5,792 | 7 |
| 12 | A814 Station Rd to Roman CrescentWest Dunbartonshire | 4,581 | 0 |
| 13 | Roman Crescent to A82West Dunbartonshire | 4,398 | 0 |
| 14 | At A82West Dunbartonshire | 3,531 | fewer than 3 |
| 15 | A82 to Greenhead Rd, DumbartonWest Dunbartonshire | 15,592 | fewer than 3 |
| 16 | Greenhead Rd to A812West Dunbartonshire | 16,668 | 4 |
| 17 | A812 to Campbell Drive, HelensburghWest Dunbartonshire, Argyll & Bute | 7,869 | 15 |
| 18 | Campbell Drive to B832 Sinclair StreetArgyll & Bute | 7,276 | fewer than 3 |
| 19 | B832 Sinclair Street to Aros RdArgyll & Bute | 9,162 | fewer than 3 |
| 20 | Aros Rs, Helensburgh to A817Argyll & Bute | 6,655 | 3 |
| 21 | A817 to A83Argyll & Bute | 681 | 4 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A814 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.
A814 traffic by vehicle type
Cars and taxis make up 81.3% of the vehicle miles on the A814. HGVs account for 2.2%, rising to 3.5% on At A82.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.2% |
| 2001 | 3.1% |
| 2002 | 3.1% |
| 2003 | 3.3% |
| 2004 | 3.2% |
| 2005 | 3.4% |
| 2006 | 3.4% |
| 2007 | 3.5% |
| 2008 | 3.5% |
| 2009 | 3.3% |
| 2010 | 3.2% |
| 2011 | 3.1% |
| 2012 | 2.9% |
| 2013 | 2.6% |
| 2014 | 2.6% |
| 2015 | 2.6% |
| 2016 | 2.6% |
| 2017 | 2.7% |
| 2018 | 2.4% |
| 2019 | 2.3% |
| 2020 | 2.7% |
| 2021 | 2.7% |
| 2022 | 2.4% |
| 2023 | 2.3% |
| 2024 | 2.2% |
| 2025 | 2.2% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A814 traffic trend
Traffic on the A814 came to 147 million vehicle miles in 2025. At the count points present in both years, it is down 5.1% on 2019, before the pandemic, and down 6.3% on 2015.
Vehicle miles a year
Like for like, traffic is up 1.7% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 146m |
| 2001 | 143m |
| 2002 | 145m |
| 2003 | 150m |
| 2004 | 150m |
| 2005 | 161m |
| 2006 | 160m |
| 2007 | 162m |
| 2008 | 158m |
| 2009 | 156m |
| 2010 | 154m |
| 2011 | 154m |
| 2012 | 149m |
| 2013 | 152m |
| 2014 | 155m |
| 2015 | 156m |
| 2016 | 160m |
| 2017 | 160m |
| 2018 | 155m |
| 2019 | 155m |
| 2020 | 119m |
| 2021 | 131m |
| 2022 | 142m |
| 2023 | 145m |
| 2024 | 146m |
| 2025 | 147m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 9,950 |
| 2001 | 9,724 |
| 2002 | 9,861 |
| 2003 | 10,204 |
| 2004 | 10,238 |
| 2005 | 10,997 |
| 2006 | 10,922 |
| 2007 | 11,065 |
| 2008 | 10,793 |
| 2009 | 10,631 |
| 2010 | 10,483 |
| 2011 | 10,419 |
| 2012 | 10,162 |
| 2013 | 10,360 |
| 2014 | 10,533 |
| 2015 | 10,627 |
| 2016 | 10,872 |
| 2017 | 10,879 |
| 2018 | 10,559 |
| 2019 | 10,527 |
| 2020 | 8,097 |
| 2021 | 8,982 |
| 2022 | 9,779 |
| 2023 | 9,953 |
| 2024 | 10,042 |
| 2025 | 10,092 |
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, 0 of the 26 count points were counted; DfT estimated the rest from earlier counts and local trends.
A814 collisions
Police recorded 145 collisions with the A814 as the first road from 2021 to 2025, 62 of them fatal or serious, including 4 fatal. That is 20.4 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 0.7 a year for each mile of road.
Reported collisions by year
Up 16.7% from 2021 to 2025.
| Year | Slight | Fatal or serious |
|---|---|---|
| 2021 | 16 | 8 |
| 2022 | 14 | 15 |
| 2023 | 22 | 13 |
| 2024 | 19 | 10 |
| 2025 | 12 | 16 |
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 |
|---|---|
| Kingsway to A741 Glasgow City · 15 collisions | 68.1 |
| A714 to A8014 Glasgow City, West Dunbartonshire · 13 collisions | 37.5 |
| A739 to Kingsway Glasgow City · 18 collisions | 30.6 |
| A812 to Campbell Drive, Helensburgh West Dunbartonshire, Argyll & Bute · 15 collisions | 16.5 |
| A814 Finnieston St to A739 Glasgow City · 26 collisions | 13.1 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 13 collisions were recorded at junctions where the A814 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 A814
In route order. Each is the highway authority DfT files the count points under.
- Glasgow City
- West Dunbartonshire
- Argyll & Bute
Roadworks on the A814 in Scotland
The Scottish Road Works Register lists 7 sets of roadworks on the A814 in Scotland, 1 of them under way. 1 close the road, a lane or a slip road. From the extract of 16 September 2026.
-
A814 North Of Garelochhead From Access 700m South Of Finnart Oil Terminal To Glen Douglas Road
-
A814 South Of Cardross From Westerhill To Main Road
-
A814 Dual Carraigeway, Helensburgh
-
A814 Dual Carraigeway, Helensburgh
-
A814 Through Shandon From Blairvadach To South Access To Rnad Faslane
-
A814 At Whistlefield From Whistlefield Roundabout To Railway Bridge North Of Whistlefield
Works in Scotland only, and only where the register records them against the road number. The register publishes one extract a day, so works can start, finish or change after it is taken. Roadworks across Scotland
Source:SRWR Extract of 2026-09-16 Updated
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 | 26 count points in 2025 | 15 September 2026 |
| Reported collisions | Road safety open data (STATS19) Department for Transport Derived statistics UK Motoring | 2021 to 2025 | 145 reported collisions | 15 September 2026 |
| Roadworks | Scottish Road Works Register open data Scottish Road Works Commissioner | Extract of 2026-09-16 | 22,074 sets of roadworks recorded in Scotland | 16 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.