Trunk A-road
A99 traffic and collisions
The A99 is a trunk A-road of 33.4 miles, in Highland. This page covers its traffic at 7 DfT count points since 2000 and the collisions police recorded on it.
- Traffic in 2025 26m vehicle miles
- Average daily traffic 2,130 vehicles a day, both directions
- Busiest section 7,307 B9159 High St to B874
- HGV share 5.0% of vehicle miles
- Traffic since 2019 +12.1% same count points
How busy is the A99?
On an average day in 2025, 2,130 vehicles passed each point on the A99, counting both directions. The busiest section is B9159 High St to B874 (Highland), with 7,307 a day; the quietest listed is B876 to A836, with 952.
Busiest sections, 2025
B9159 High St to B874 carries 3.4 times the road’s average flow.
| Section | Vehicles a day |
|---|---|
| B9159 High St to B874 Highland · 1.2 mi · HGVs 1.4% | 7,307 |
| B874 to B876 Highland · 1.9 mi · HGVs 2.6% | 3,717 |
| A9 to A882 Highland · 16.7 mi · HGVs 7.1% | 2,428 |
| B876 to A836 Highland · 12.9 mi · HGVs 2.3% | 952 |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Route
In Highland · 33.4 miles
A99 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 | A9 to A882Highland | 2,428 | – |
| 2 | A882 to Station RdHighland | 7,330 | – |
| 3 | Station Rd to B9159 High StHighland | 7,183 | – |
| 4 | B9159 High St to B874Highland | 7,307 | – |
| 5 | B874 to B876Highland | 3,717 | – |
| 6 | B876 to A836Highland | 952 | – |
| 7 | A836 to PierHighland | 780 | – |
Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A99 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.
A99 traffic by vehicle type
Cars and taxis make up 68.3% of the vehicle miles on the A99. HGVs account for 5.0%, rising to 7.1% on A9 to A882.
Vehicle mix, 2025
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
HGV share of traffic
| Year | HGV share |
|---|---|
| 2000 | 3.8% |
| 2001 | 3.7% |
| 2002 | 4.9% |
| 2003 | 4.4% |
| 2004 | 4.3% |
| 2005 | 4.5% |
| 2006 | 5.7% |
| 2007 | 5.9% |
| 2008 | 5.1% |
| 2009 | 5.0% |
| 2010 | 5.2% |
| 2011 | 5.2% |
| 2012 | 5.2% |
| 2013 | 5.1% |
| 2014 | 5.1% |
| 2015 | 5.2% |
| 2016 | 5.3% |
| 2017 | 5.4% |
| 2018 | 5.4% |
| 2019 | 5.5% |
| 2020 | 6.4% |
| 2021 | 5.9% |
| 2022 | 5.1% |
| 2023 | 5.0% |
| 2024 | 5.0% |
| 2025 | 5.0% |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
A99 traffic trend
Traffic on the A99 came to 26 million vehicle miles in 2025. At the count points present in both years, it is up 12.1% on 2019, before the pandemic, and up 22.7% on 2015.
Vehicle miles a year
Like for like, traffic is up 40.0% on 2000.
| Year | Vehicle miles |
|---|---|
| 2000 | 18m |
| 2001 | 19m |
| 2002 | 17m |
| 2003 | 18m |
| 2004 | 18m |
| 2005 | 18m |
| 2006 | 18m |
| 2007 | 18m |
| 2008 | 20m |
| 2009 | 20m |
| 2010 | 20m |
| 2011 | 20m |
| 2012 | 20m |
| 2013 | 20m |
| 2014 | 20m |
| 2015 | 21m |
| 2016 | 22m |
| 2017 | 22m |
| 2018 | 22m |
| 2019 | 23m |
| 2020 | 18m |
| 2021 | 22m |
| 2022 | 24m |
| 2023 | 25m |
| 2024 | 26m |
| 2025 | 26m |
Source:DfT,UK Motoring analysis 2000 to 2025 Updated
Average daily flow
| Year | Vehicles a day |
|---|---|
| 2000 | 1,508 |
| 2001 | 1,536 |
| 2002 | 1,388 |
| 2003 | 1,476 |
| 2004 | 1,484 |
| 2005 | 1,487 |
| 2006 | 1,488 |
| 2007 | 1,473 |
| 2008 | 1,635 |
| 2009 | 1,663 |
| 2010 | 1,624 |
| 2011 | 1,629 |
| 2012 | 1,603 |
| 2013 | 1,632 |
| 2014 | 1,677 |
| 2015 | 1,724 |
| 2016 | 1,782 |
| 2017 | 1,840 |
| 2018 | 1,804 |
| 2019 | 1,900 |
| 2020 | 1,454 |
| 2021 | 1,772 |
| 2022 | 2,000 |
| 2023 | 2,037 |
| 2024 | 2,107 |
| 2025 | 2,130 |
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 7 count points were counted; DfT estimated the rest from earlier counts and local trends.
A99 collisions
Police recorded fewer than 3 collisions with the A99 as the first road from 2021 to 2025, 8 of them fatal or serious.
Reported collisions by year
Down 40.0% from 2021 to 2025.
| Year | Collisions | Fatal or serious |
|---|---|---|
| 2021 | 5 | fewer than 3 |
| 2022 | fewer than 3 | 0 |
| 2023 | 6 | 3 |
| 2024 | 3 | fewer than 3 |
| 2025 | 3 | fewer than 3 |
Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated
Fatal or serious uses DfT’s adjusted serious figures. How we count collisions
Council areas on the A99
In route order. Each is the highway authority DfT files the count points under.
- Highland
Roadworks on the A99 in Scotland
The Scottish Road Works Register lists 12 sets of roadworks on the A99 in Scotland, 1 of them under way. 1 close the road, a lane or a slip road. From the extract of 16 September 2026.
-
A99t Mansville Road Junction - Whiteleen Cottage, Ulbster
-
A99 From B876 Junction To C1006 Reaster Road Junction, Reiss
-
A99t A9t Junction - Burrigill Road West Junction, Latheron
-
A99t Burrigill Road West Junction - Camster Road Junction, Lybster
-
A99t A9t Junction - Burrigill Road West Junction, Latheron
-
A99t Burrigill Road West Junction - Camster Road Junction, Lybster
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 | 18 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.