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Road traffic statistics

37151

Details

AADF latest year 2021
Region South West
Local authority South Gloucestershire
Road name A420
Road type Major
Start junction road A4175
End junction road Bath Road
Link length 3.60km (2.24 miles)
Easting & Northing 369607,172710
Latitude & longitude 51.45255,-2.43878

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
2021 Manual count 10,324 7,481 2,254 470 11 108 11
2020 Estimated using AADF from previous year on this link 10,209 7,523 2,075 423 33 173 14
2019 Estimated using AADF from previous year on this link 13,454 10,302 2,425 473 26 233 21
2018 Estimated using AADF from previous year on this link 13,421 10,280 2,433 470 21 217 22
2017 Manual count 13,358 10,329 2,323 461 22 222 23
2016 Estimated using AADF from previous year on this link 13,902 10,491 2,546 582 27 255 29
2015 Estimated using AADF from previous year on this link 13,567 10,362 2,357 564 27 254 29
2014 Estimated using AADF from previous year on this link 13,528 10,486 2,202 545 28 266 29
2013 Manual count 13,212 10,341 2,049 536 34 258 28
2012 Estimated using AADF from previous year on this link 13,105 9,830 2,539 539 10 152 44
2011 Estimated using AADF from previous year on this link 13,272 10,114 2,420 528 11 165 45
2010 Estimated using AADF from previous year on this link 13,075 10,084 2,287 509 13 152 43
2009 Manual count 13,224 10,280 2,223 508 13 172 41
2008 Estimated using AADF from previous year on this link 15,986 12,426 2,583 703 28 202 72
2007 Estimated using AADF from previous year on this link 16,070 12,513 2,577 702 28 208 70
2006 Estimated using AADF from previous year on this link 15,897 12,602 2,326 689 28 206 74
2005 Manual count 15,556 12,391 2,219 678 30 190 78
2004 Estimated using AADF from previous year on this link 14,597 11,483 2,244 611 15 208 51
2003 Manual count 14,151 11,291 2,016 578 15 204 62
2002 Estimated using AADF from previous year on this link 17,064 13,880 2,161 827 50 126 70
2001 Manual count 16,629 13,489 2,144 804 47 124 68
2000 Estimated using AADF from previous year on this link 15,181 12,127 1,955 833 32 164 102

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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 37151 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 37151 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. 22
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. 44
Raw counts Vehicle counts recorded at this count point. 168

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