Trunk A-road

A720 traffic and collisions

The A720 is a trunk A-road of 14.0 miles, from City of Edinburgh to East Lothian. This page covers its traffic at 10 DfT count points since 2000 and the collisions police recorded on it.

Last updated
Records analysed
10 count points in 2025
Methodology
View methodology
  • Traffic in 2025 348m vehicle miles
  • Average daily traffic 68,177 vehicles a day, both directions
  • Busiest section 93,585 M8 to A71
  • HGV share 5.3% of vehicle miles
  • Traffic since 2019 +4.3% same count points
  • Collisions, 2021 to 2025 139 8.5 per 100m vehicle miles

How busy is the A720?

On an average day in 2025, 68,177 vehicles passed each point on the A720, counting both directions. The busiest section is M8 to A71 (City of Edinburgh), with 93,585 a day; the quietest listed is A8 to M8, with 35,309.

Busiest sections, 2025

M8 to A71 carries 1.4 times the road’s average flow.

Sections of the A720 with the highest average daily flow, 2025
Section Vehicles a day
M8 to A71 City of Edinburgh · 0.7 mi · HGVs 5.0% 93,585
Dreghorn Link junction to A702 City of Edinburgh · 1.6 mi · HGVs 4.7% 91,857
A71 to Dreghorn Link junction City of Edinburgh · 3.6 mi · HGVs 5.1% 78,369
A702 to A701 City of Edinburgh · 1.7 mi · HGVs 4.6% 78,304
A701 to A772 City of Edinburgh · 2.1 mi · HGVs 6.6% 60,645
A68 to A1 Midlothian, East Lothian · 0.8 mi · HGVs 5.4% 52,395
A6106 to A68 Midlothian · 1.4 mi · HGVs 6.7% 50,842
A772 to A7/A6106 City of Edinburgh · 0.9 mi · HGVs 6.4% 48,815
A8 to M8 City of Edinburgh · 1.2 mi · HGVs 2.5% 35,309

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

Route

City of Edinburgh to East Lothian · 14.0 miles

City of Edinburgh East Lothian
Schematic route: each line joins the junctions at the ends of a DfT count point link.

A720 traffic and collisions by section

9 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 A720 in route order, 2025 traffic
#
1A8 to M8City of Edinburgh1.235,3092.5%+8.4%1927.4
2M8 to A71City of Edinburgh0.793,5855.0%+9.7%1616.6
3A71 to Dreghorn Link junctionCity of Edinburgh3.678,3695.1%+2.9%438.7
4Dreghorn Link junction to A702City of Edinburgh1.691,8574.7%+4.5%114.3
5A702 to A701City of Edinburgh1.778,3044.6%+1.7%8
6A701 to A772City of Edinburgh2.160,6456.6%+2.1%177.6
7A772 to A7/A6106City of Edinburgh0.948,8156.4%+0.9%7
8A6106 to A68Midlothian1.450,8426.7%+7.3%129.9
9A68 to A1Midlothian, East Lothian0.852,3955.4%+15.9%6

Vehicles a day is the average daily flow in 2025. “Since 2019” compares the same count points. Collisions are those with the A720 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.

A720 traffic by vehicle type

Cars and taxis make up 74.5% of the vehicle miles on the A720. HGVs account for 5.3%, rising to 6.7% on A6106 to A68.

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 A720, by year
Year HGV share
2000 7.4%
2001 7.1%
2002 6.9%
2003 6.8%
2004 7.4%
2005 7.7%
2006 7.6%
2007 7.6%
2008 7.7%
2009 6.8%
2010 7.0%
2011 7.0%
2012 7.0%
2013 7.1%
2014 6.8%
2015 6.8%
2016 6.8%
2017 6.8%
2018 6.7%
2019 6.6%
2020 7.0%
2021 6.3%
2022 5.8%
2023 5.5%
2024 5.4%
2025 5.3%

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

A720 traffic trend

Traffic on the A720 came to 348 million vehicle miles in 2025. At the count points present in both years, it is up 4.3% on 2019, before the pandemic, and up 6.5% on 2015.

Vehicle miles a year

Like for like, traffic is up 23.5% on 2000.

Vehicle miles on the A720 each year, the whole road as it was that year
Year Vehicle miles
2000 263m
2001 271m
2002 280m
2003 284m
2004 287m
2005 292m
2006 302m
2007 300m
2008 280m
2009 303m
2010 286m
2011 287m
2012 284m
2013 291m
2014 288m
2015 303m
2016 310m
2017 307m
2018 315m
2019 334m
2020 231m
2021 284m
2022 330m
2023 336m
2024 345m
2025 348m

Source:DfT,UK Motoring analysis 2000 to 2025 Updated

Average daily flow

Average daily flow along the A720, weighted by link length, by year
Year Vehicles a day
2000 54,534
2001 56,193
2002 58,084
2003 58,961
2004 59,476
2005 60,680
2006 62,617
2007 62,229
2008 58,033
2009 62,889
2010 59,440
2011 59,532
2012 58,970
2013 60,415
2014 59,863
2015 62,858
2016 64,416
2017 63,629
2018 63,830
2019 65,371
2020 45,282
2021 55,610
2022 64,620
2023 65,803
2024 67,522
2025 68,177

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, 7 of the 10 count points were counted; DfT estimated the rest from earlier counts and local trends.

A720 collisions

Police recorded 139 collisions with the A720 as the first road from 2021 to 2025, 34 of them fatal or serious, including 3 fatal. That is 8.5 per 100 million vehicle miles, lower than the 31.5 for all A-roads in Great Britain. On average there were 2.0 a year for each mile of road.

Reported collisions by year

Up 24.0% from 2021 to 2025.

Police-reported collisions on the A720 by year: fatal or serious, and slight
Year SlightFatal or serious
2021 205
2022 256
2023 226
2024 195
2025 1912

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 A720, 2021 to 2025
Section Per 100m vehicle miles
A8 to M8 City of Edinburgh · 19 collisions 27.4
M8 to A71 City of Edinburgh · 16 collisions 16.6
A6106 to A68 Midlothian · 12 collisions 9.9
A71 to Dreghorn Link junction City of Edinburgh · 43 collisions 8.7
A701 to A772 City of Edinburgh · 17 collisions 7.6
Dreghorn Link junction to A702 City of Edinburgh · 11 collisions 4.3

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

A further 11 collisions were recorded at junctions where the A720 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 A720

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

  • City of Edinburgh
  • Midlothian
  • East Lothian

Roadworks on the A720 in Scotland

The Scottish Road Works Register lists 21 sets of roadworks on the A720 in Scotland, 3 of them under way. 21 close the road, a lane or a slip road. From the extract of 16 September 2026.

  • A720t City Of Edinburgh Bypass

    Road closed Under way, until 16 Oct 2026 Transport Scotland - SE Unit Op Company

  • A720t City Of Edinburgh Bypass

    Lane closed Under way, until 15 Sept 2026 Transport Scotland - SE Unit Op Company

  • A720t City Of Edinburgh Bypass

    Slip road closed Under way, until 16 Sept 2026 Transport Scotland - SE Unit Op Company

  • A720t City Of Edinburgh Bypass

    Lane closed 20 Sept 2026 to 22 Sept 2026 Transport Scotland

  • A720t City Of Edinburgh Bypass

    Road closed On 20 Sept 2026 Transport Scotland - SE Unit Op Company

  • A720t City Of Edinburgh Bypass

    Lane closed 21 Sept 2026 to 22 Sept 2026 Transport Scotland

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

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 10 count points in 2025 15 September 2026
Reported collisions Road safety open data (STATS19) Department for Transport
Derived statistics UK Motoring
2021 to 2025 139 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.