Trunk A-road
A84 traffic and collisions
The A84 is a trunk A-road of 29.7 miles, in Stirling. This page covers its traffic at 7 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 74m vehicle miles
- Average daily traffic 6,810 vehicles a day, both directions
- Busiest section 15,912 M9 to A9
- HGV share 5.1% of vehicle miles
- Traffic since 2019 −3.0% same count points
- Collisions, 2021 to 2025 36 10.0 per 100m vehicle miles
How busy is the A84?
On an average day in 2025, 6,810 vehicles passed each point on the A84, counting both directions. The busiest section is M9 to A9 (Stirling), with 15,912 a day; the quietest listed is A821 to A85, with 3,765.
Busiest sections, 2025
M9 to A9 carries 2.3 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| M9 to A9 Stirling · 0.7 mi · HGVs 2.0% | 15,912 |
| A9 to M9 Stirling · 1.2 mi · HGVs 2.1% | 15,650 |
| M9 to A873 Stirling · 4.2 mi · HGVs 6.0% | 10,444 |
| A873 to A820 Stirling · 2.3 mi · HGVs 7.0% | 8,339 |
| A820 to A81 Stirling · 7.5 mi · HGVs 5.2% | 7,257 |
| A81 to A821 Stirling · 1.2 mi · HGVs 2.8% | 6,185 |
| A821 to A85 Stirling · 12.6 mi · HGVs 5.8% | 3,765 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
In Stirling · 29.7 miles
A84 traffic and collisions by section
7 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 | M9 to A9Stirling | 15,912 | fewer than 3 |
| 2 | A9 to M9Stirling | 15,650 | 3 |
| 3 | M9 to A873Stirling | 10,444 | 6 |
| 4 | A873 to A820Stirling | 8,339 | 5 |
| 5 | A820 to A81Stirling | 7,257 | 13 |
| 6 | A81 to A821Stirling | 6,185 | fewer than 3 |
| 7 | A821 to A85Stirling | 3,765 | fewer than 3 |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A84 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.
A84 traffic by vehicle type
Cars and taxis make up 75.7% of the vehicle miles on the A84. HGVs account for 5.1%, rising to 7.0% on A873 to A820.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 7.2% |
| 2001 | 6.5% |
| 2002 | 6.6% |
| 2003 | 6.4% |
| 2004 | 7.2% |
| 2005 | 6.2% |
| 2006 | 7.2% |
| 2007 | 7.6% |
| 2008 | 7.6% |
| 2009 | 6.9% |
| 2010 | 7.0% |
| 2011 | 7.1% |
| 2012 | 7.1% |
| 2013 | 7.2% |
| 2014 | 7.3% |
| 2015 | 7.3% |
| 2016 | 7.3% |
| 2017 | 5.2% |
| 2018 | 5.3% |
| 2019 | 5.1% |
| 2020 | 6.1% |
| 2021 | 5.9% |
| 2022 | 5.3% |
| 2023 | 5.2% |
| 2024 | 5.1% |
| 2025 | 5.1% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A84 traffic trend
Traffic on the A84 came to 73.8 million vehicle miles in 2025. At the count points present in both years, it is down 3.0% on 2019, before the pandemic, and up 10.2% on 2015.
Vehicle miles a year
Like for like, traffic is up 69.7% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 43m |
| 2001 | 44m |
| 2002 | 45m |
| 2003 | 48m |
| 2004 | 46m |
| 2005 | 47m |
| 2006 | 64m |
| 2007 | 67m |
| 2008 | 67m |
| 2009 | 66m |
| 2010 | 66m |
| 2011 | 66m |
| 2012 | 63m |
| 2013 | 63m |
| 2014 | 65m |
| 2015 | 66m |
| 2016 | 69m |
| 2017 | 72m |
| 2018 | 74m |
| 2019 | 76m |
| 2020 | 54m |
| 2021 | 69m |
| 2022 | 71m |
| 2023 | 73m |
| 2024 | 73m |
| 2025 | 74m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 4,060 |
| 2001 | 4,134 |
| 2002 | 4,220 |
| 2003 | 4,460 |
| 2004 | 4,334 |
| 2005 | 4,430 |
| 2006 | 5,992 |
| 2007 | 6,305 |
| 2008 | 6,247 |
| 2009 | 6,190 |
| 2010 | 6,131 |
| 2011 | 6,203 |
| 2012 | 5,929 |
| 2013 | 5,901 |
| 2014 | 6,054 |
| 2015 | 6,206 |
| 2016 | 6,434 |
| 2017 | 6,690 |
| 2018 | 6,835 |
| 2019 | 7,019 |
| 2020 | 4,982 |
| 2021 | 6,400 |
| 2022 | 6,563 |
| 2023 | 6,695 |
| 2024 | 6,747 |
| 2025 | 6,810 |
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 7 count points were counted; DfT estimated the rest from earlier counts and local trends.
A84 collisions
Police recorded 36 collisions with the A84 as the first road from 2021 to 2025, 14 of them fatal or serious, including 3 fatal. That is 10.0 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 0.2 a year for each mile of road.
Reported collisions by year
About the same in 2025 as in 2021.
| Year | Collisions |
|---|---|
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 5 |
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 |
|---|---|
| A820 to A81 Stirling · 13 collisions | 13.6 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
A further 4 collisions were recorded at junctions where the A84 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 A84
In route order. Each is the highway authority DfT files the count points under.
- Stirling
Roadworks on the A84 in Scotland
The Scottish Road Works Register lists 17 sets of roadworks on the A84 in Scotland, 2 of them under way. 3 close the road, a lane or a slip road. From the extract of 16 September 2026.
-
A84t From Junction With B826 To Junction With A820, Doune
-
A84t From Junction With Access To Lenny House To Junction With A821 At Kilmahog
-
A84t From Junction With Leny Road To Junction With Access To Leny House, Callander
-
A84t From Craigforth Roundabout West To Junction With B826, Blairdrummond
-
A84t From Junction With Access To Lenny House To Junction With A821 At Kilmahog
-
A84t From Junction With Access To Gart Farm To Junction With Stirling Road, Callander
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 | 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 | 36 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.