A-road

A6121 traffic and collisions

The A6121 is an A-road of 17.5 miles, from Rutland to Lincolnshire. This page covers its traffic at 8 DfT count points since 2000 and the collisions police recorded on it.

Last updated
Records analysed
8 count points in 2025
Methodology
View methodology
  • Traffic in 2025 44m vehicle miles
  • Average daily traffic 6,940 vehicles a day, both directions
  • Busiest section 10,364 A606 to A1175
  • HGV share 2.5% of vehicle miles
  • Traffic since 2019 −3.9% same count points
  • Collisions, 2021 to 2025 55 26.2 per 100m vehicle miles

How busy is the A6121?

On an average day in 2025, 6,940 vehicles passed each point on the A6121, counting both directions. The busiest section is A606 to A1175 (Lincolnshire), with 10,364 a day; the quietest listed is A47 to A1(T), with 5,752.

Busiest sections, 2025

A606 to A1175 carries 1.5 times the road’s average flow.

Sections of the A6121 with the highest average daily flow, 2025
Section Vehicles a day
A606 to A1175 Lincolnshire · 0.5 mi · HGVs 2.6% 10,364
A1175 to Rutland Rd Lincolnshire · 0.7 mi · HGVs 1.0% 10,033
Rutland Rd to A151 Lincolnshire, Rutland · 8.4 mi · HGVs 1.2% 7,453
Exeter Gardens to A606 Lincolnshire · 0.7 mi · HGVs 2.0% 7,238
A47 to A1(T) Rutland · 7.0 mi · HGVs 4.9% 5,752

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

Route

Rutland to Lincolnshire · 17.5 miles

Rutland Lincolnshire
Schematic route: each line joins the junctions at the ends of a DfT count point link.

A6121 traffic and collisions by section

6 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 A6121 in route order, 2025 traffic
#
1A47 to A1(T)Rutland7.05,7524.9%−1.1%3
2A1(T) to Exeter GardensLincolnshire0.26,5862.0%−5.6%3
3Exeter Gardens to A606Lincolnshire0.77,2382.0%−5.6%4
4A606 to A1175Lincolnshire0.510,3642.6%−5.4%6
5A1175 to Rutland RdLincolnshire0.710,0331.0%−5.5%1188.6
6Rutland Rd to A151Lincolnshire, Rutland8.47,4531.2%−5.1%2825.8

Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A6121 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.

A6121 traffic by vehicle type

Cars and taxis make up 83.9% of the vehicle miles on the A6121. HGVs account for 2.5%, rising to 4.9% on A47 to A1(T).

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 A6121, by year
Year HGV share
2000 5.0%
2001 6.1%
2002 5.4%
2003 4.9%
2004 4.4%
2005 4.5%
2006 4.6%
2007 5.1%
2008 5.0%
2009 4.8%
2010 4.9%
2011 4.9%
2012 5.0%
2013 5.2%
2014 5.2%
2015 5.2%
2016 3.1%
2017 3.1%
2018 2.7%
2019 2.7%
2020 3.2%
2021 3.1%
2022 3.0%
2023 2.8%
2024 2.6%
2025 2.5%

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

A6121 traffic trend

Traffic on the A6121 came to 44.3 million vehicle miles in 2025. At the count points present in both years, it is down 3.9% on 2019, before the pandemic, and down 1.9% on 2015.

Vehicle miles a year

Like for like, traffic is up 3.8% on 2000.

Vehicle miles on the A6121 each year, the whole road as it was that year
Year Vehicle miles
2000 43m
2001 42m
2002 43m
2003 42m
2004 43m
2005 44m
2006 45m
2007 43m
2008 43m
2009 44m
2010 43m
2011 43m
2012 43m
2013 43m
2014 44m
2015 45m
2016 48m
2017 48m
2018 46m
2019 46m
2020 35m
2021 38m
2022 41m
2023 42m
2024 44m
2025 44m

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

Average daily flow

Average daily flow along the A6121, weighted by link length, by year
Year Vehicles a day
2000 6,686
2001 6,527
2002 6,676
2003 6,631
2004 6,683
2005 6,813
2006 7,004
2007 6,684
2008 6,750
2009 6,805
2010 6,669
2011 6,744
2012 6,720
2013 6,763
2014 6,882
2015 7,073
2016 7,456
2017 7,499
2018 7,198
2019 7,221
2020 5,453
2021 5,998
2022 6,457
2023 6,592
2024 6,870
2025 6,940

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 8 count points were counted; DfT estimated the rest from earlier counts and local trends.

A6121 collisions

Police recorded 55 collisions with the A6121 as the first road from 2021 to 2025, 17 of them fatal or serious, including 4 fatal. That is 26.2 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 0.6 a year for each mile of road.

Reported collisions by year

Up 25.0% from 2021 to 2025.

Police-reported collisions on the A6121 by year
Year Collisions
2021 12
2022 8
2023 11
2024 9
2025 15

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 A6121, 2021 to 2025
Section Per 100m vehicle miles
A1175 to Rutland Rd Lincolnshire · 11 collisions 88.6
Rutland Rd to A151 Lincolnshire, Rutland · 28 collisions 25.8

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

A further 15 collisions were recorded at junctions where the A6121 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 A6121

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

  • Rutland
  • Lincolnshire

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 8 count points in 2025 15 September 2026
Reported collisions Road safety open data (STATS19) Department for Transport
Derived statistics UK Motoring
2021 to 2025 55 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.