Skip to main content
Road traffic statistics

78042

Details

AADF latest year 2024
Region South West
Local authority Swindon
Road name A420
Road type Major
Start junction road A419
End junction road supermarket roundabout
Link length 0.60km (0.37 miles)
Easting & Northing 418750,186550
Latitude & longitude 51.57751,-1.73081

Location

Contents

Average Annual Daily Flow

Average annual daily flow
Year Count method All motor vehicles Cars & taxis LGVs HGVs Pedal cycles Motorcycles Buses & coaches
2024 Estimated from nearby links 22,810 16,987 4,084 1,445 20 199 95
2023 Estimated from nearby links 22,549 16,785 4,012 1,455 21 201 95
2022 Estimated from nearby links 22,118 16,380 3,934 1,491 22 216 96
2021 Estimated from nearby links 19,830 14,730 3,557 1,324 4 141 78
2020 Estimated from nearby links 18,015 13,470 3,106 1,236 5 136 66
2019 Estimated from nearby links 23,738 18,446 3,629 1,377 4 183 103
2018 Estimated from nearby links 23,692 18,405 3,641 1,371 3 171 104
2017 Estimated from nearby links 26,446 20,812 3,262 2,056 21 220 96
2016 Estimated from nearby links 26,256 20,837 3,082 2,011 21 227 99
2015 Estimated from nearby links 25,735 20,582 2,854 1,972 21 226 100
2014 Estimated from nearby links 24,720 19,979 2,568 1,853 21 219 102
2013 Estimated from nearby links 22,504 17,432 3,065 1,736 24 166 104
2012 Estimated from nearby links 22,473 17,643 2,887 1,684 24 158 101
2011 Estimated from nearby links 22,465 17,771 2,772 1,660 26 162 100
2010 Estimated from nearby links 22,518 17,878 2,710 1,668 30 164 98
2009 Estimated from nearby links 23,689 18,722 2,717 1,937 26 226 87
2008 Estimated from nearby links 24,008 18,741 2,863 2,076 20 186 142
2007 Estimated from nearby links 24,162 18,873 2,857 2,100 20 192 140
2006 Estimated from nearby links 24,021 19,006 2,579 2,098 20 190 148
2005 Estimated from nearby links 23,878 18,509 2,888 2,167 21 254 60
2004 Estimated from nearby links 23,911 18,639 2,761 2,183 20 264 64
2003 Estimated from nearby links 23,234 18,328 2,481 2,088 20 260 77
2002 Estimated from nearby links 22,528 17,933 2,241 2,038 25 239 77
2001 Estimated from nearby links 23,297 17,982 2,504 2,392 20 292 127
2000 Estimated from nearby links 22,630 17,441 2,370 2,433 23 265 121

Download data

Data disclaimer

Traffic figures at the regional and national level are robust, and are reported as accredited official statistics. However, DfT’s traffic estimates for individual road links and small areas are less robust, as they are not always based on up-to-date counts made at these locations. Where other more up-to-date sources of traffic data are available (e.g. from local highways authorities), this may provide a more accurate estimate of traffic at these locations.

It is the responsibility of the user to decide which data are most appropriate for their purpose, and if DfT road link level traffic estimates are used, to make a note of the limitations in any published material.

Quality flags in data downloads

DfT’s road link level traffic estimates are calculated using a variety of methods, with some methods likely to produce more accurate estimates than others.

The data tables available to download here contain a column - estimation_method – showing the method used to estimate traffic for each location and year. Figures having an estimation method of “Counted” are likely to be more accurate than those marked as “Estimated”, and the latter should be used with caution.

Site details
Manual count point site 78042 details
Average annual daily flow
Number of vehicles that travel past the count point (in both directions) on an average day of the year.
Average annual daily flow by direction
Number of vehicles that travel past the count point on an average day of the year, by direction of travel.
Raw counts
Vehicle counts recorded at this count point.
Data Description Records Download
Site details Manual count point site 78042 details 1
Average annual daily flow Number of vehicles that travel past the count point (in both directions) on an average day of the year. 25
Average annual daily flow by direction Number of vehicles that travel past the count point on an average day of the year, by direction of travel. 25
Raw counts Vehicle counts recorded at this count point. 0

To apply more filters to downloads, or retrieve data split into pages you can use our API.