A-road

A4061 traffic and collisions

The A4061 is an A-road of 26.0 miles, from Rhondda Cynon Taf to Bridgend. This page covers its traffic at 12 DfT count points since 2000 and the collisions police recorded on it.

Last updated
Records analysed
12 count points in 2025
Methodology
View methodology
  • Traffic in 2025 80m vehicle miles
  • Average daily traffic 8,406 vehicles a day, both directions
  • Busiest section 33,265 M4 Junction 36 to A4061split
  • HGV share 1.9% of vehicle miles
  • Traffic since 2019 −0.2% same count points
  • Collisions, 2021 to 2025 56 14.7 per 100m vehicle miles

How busy is the A4061?

On an average day in 2025, 8,406 vehicles passed each point on the A4061, counting both directions. The busiest section is M4 Junction 36 to A4061split (Bridgend), with 33,265 a day; the quietest listed is Park Crescent to Park Crescent, Treorchy, with 2,525.

Busiest sections, 2025

M4 Junction 36 to A4061split carries 4.0 times the road’s average flow.

Sections of the A4061 with the highest average daily flow, 2025
Section Vehicles a day
M4 Junction 36 to A4061split Bridgend · 2.2 mi · HGVs 1.3% 33,265
A4065 to M4 Junction 36 Bridgend · 1.0 mi · HGVs 2.6% 17,747
A4093 to B4280 Bridgend · 2.2 mi · HGVs 1.6% 12,150
Hill St, Treherbert to A4058 Rhondda Cynon Taf · 1.8 mi · HGVs 1.0% 10,774
A4093W to A4093E Bridgend · 0.8 mi · HGVs 1.1% 6,739
Park Crescent, Treorchy to A4093W Bridgend · 6.0 mi · HGVs 1.0% 5,437
A465 / A4059 to Hill St, Treherbert Rhondda Cynon Taf · 8.1 mi · HGVs 5.9% 3,322
Park Crescent to Park Crescent, Treorchy Rhondda Cynon Taf · 2.9 mi · HGVs 1.3% 2,525

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

Route

Rhondda Cynon Taf to Bridgend · 26.0 miles

Rhondda Cynon Taf Bridgend
Schematic route: each line joins the junctions at the ends of a DfT count point link.

A4061 traffic and collisions by section

12 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
Sections of the A4061 in route order, 2025 traffic
#
1Hill St, Treherbert to A465 / A4059Rhondda Cynon Taf0.21,9584.4%0
2A465 / A4059 to Hill St, TreherbertRhondda Cynon Taf8.13,3225.9%8
3Hill St, Treherbert to A4058Rhondda Cynon Taf1.810,7741.0%+3.2%1751.2
4A4058 to Park CrescentRhondda Cynon Taf0.43,0301.3%−3.2%fewer than 3
5Park Crescent to Park Crescent, TreorchyRhondda Cynon Taf2.92,5251.3%−3.2%fewer than 3
6Park Crescent, Treorchy to A4093WBridgend6.05,4371.0%−5.7%1017.5
7A4093W to A4093EBridgend0.86,7391.1%−19.8%4
8A4093 to B4280Bridgend2.212,1501.6%−6.1%fewer than 3
9B4280 to A4065Bridgend0.213,4861.6%−6.1%0
10A4065 to M4 Junction 36Bridgend1.017,7472.6%+7.4%fewer than 3
11M4 Junction 36 to A4061splitBridgend2.233,2651.3%+4.9%7
12A473N to A4061 splitBridgend0.224,8400.6%−1.3%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 A4061 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.

A4061 traffic by vehicle type

Cars and taxis make up 77.8% of the vehicle miles on the A4061. HGVs account for 1.9%, rising to 5.9% on A465 / A4059 to Hill St, Treherbert.

Vehicle mix, 2025

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

HGV share of traffic

HGVs as a share of vehicle miles on the A4061, by year
Year HGV share
2000 3.7%
2001 3.3%
2002 3.4%
2003 3.0%
2004 2.8%
2005 2.9%
2006 2.7%
2007 3.0%
2008 3.0%
2009 2.8%
2010 2.8%
2011 2.7%
2012 2.7%
2013 2.4%
2014 2.3%
2015 2.2%
2016 2.2%
2017 2.3%
2018 2.2%
2019 2.2%
2020 2.6%
2021 2.3%
2022 2.2%
2023 2.1%
2024 1.9%
2025 1.9%

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

A4061 traffic trend

Traffic on the A4061 came to 79.8 million vehicle miles in 2025. At the count points present in both years, it is about the same as in 2019, before the pandemic, and down 2.2% on 2015.

Vehicle miles a year

Like for like, traffic is up 19.4% on 2000.

Vehicle miles on the A4061 each year, the whole road as it was that year
Year Vehicle miles
2000 66m
2001 65m
2002 67m
2003 65m
2004 70m
2005 70m
2006 74m
2007 74m
2008 74m
2009 73m
2010 71m
2011 73m
2012 75m
2013 73m
2014 78m
2015 78m
2016 79m
2017 77m
2018 80m
2019 80m
2020 61m
2021 70m
2022 75m
2023 78m
2024 79m
2025 80m

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

Average daily flow

Average daily flow along the A4061, weighted by link length, by year
Year Vehicles a day
2000 6,981
2001 6,944
2002 7,174
2003 7,010
2004 7,506
2005 7,516
2006 7,965
2007 7,894
2008 7,903
2009 7,848
2010 7,660
2011 7,866
2012 8,031
2013 7,881
2014 8,407
2015 8,412
2016 8,534
2017 8,305
2018 8,439
2019 8,501
2020 6,512
2021 7,402
2022 7,968
2023 8,264
2024 8,374
2025 8,406

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 (68.1% of today’s road for 2019). In 2025, 1 of the 12 count points were counted; DfT estimated the rest from earlier counts and local trends.

A4061 collisions

Police recorded 56 collisions with the A4061 as the first road from 2021 to 2025, 11 of them fatal or serious. That is 14.7 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 0.4 a year for each mile of road.

Reported collisions by year

Down 50.0% from 2021 to 2025.

Police-reported collisions on the A4061 by year
Year Collisions
2021 10
2022 14
2023 19
2024 8
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.

Collisions per 100 million vehicle miles by section of the A4061, 2021 to 2025
Section Per 100m vehicle miles
Hill St, Treherbert to A4058 Rhondda Cynon Taf · 17 collisions 51.2
Park Crescent, Treorchy to A4093W Bridgend · 10 collisions 17.5

Source:DfT STATS19,UK Motoring analysis 2021 to 2025 Updated

A further 13 collisions were recorded at junctions where the A4061 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 A4061

In route order. Each is the highway authority DfT files the count points under.

  • Rhondda Cynon Taf
  • Bridgend

Data sources and methodology

Datasets used on this page
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 12 count points in 2025 15 September 2026
Reported collisions Road safety open data (STATS19) Department for Transport
Derived statistics UK Motoring
2021 to 2025 56 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.