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Road traffic statistics

27127

Details

AADF latest year 2024
Region South West
Local authority Bristol, City of
Road name A420
Road type Major
Start junction road A4320
End junction road B4467
Link length 1.40km (0.87 miles)
Easting & Northing 361000,173360
Latitude & longitude 51.45786,-2.56272

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 using AADF from previous year on this link 18,386 13,735 3,475 248 450 424 504
2023 Estimated using AADF from previous year on this link 18,103 13,530 3,413 246 445 411 502
2022 Estimated using AADF from previous year on this link 17,801 13,280 3,357 250 452 417 497
2021 Estimated using AADF from previous year on this link 16,615 12,434 3,096 241 506 382 463
2020 Manual count 15,159 11,286 2,840 225 619 360 448
2019 Estimated using AADF from previous year on this link 19,898 15,434 3,192 308 824 498 465
2018 Estimated using AADF from previous year on this link 19,764 15,243 3,221 308 751 531 460
2017 Estimated using AADF from previous year on this link 19,924 15,413 3,161 305 680 537 507
2016 Manual count 19,910 15,527 3,003 305 710 532 543
2015 Estimated using AADF from previous year on this link 18,742 13,679 3,549 360 639 309 845
2014 Estimated using AADF from previous year on this link 18,303 13,413 3,384 372 688 350 785
2013 Estimated using AADF from previous year on this link 17,764 13,059 3,164 360 709 365 815
2012 Estimated using AADF from previous year on this link 17,680 13,175 3,045 352 718 328 780
2011 Estimated using AADF from previous year on this link 17,801 13,384 3,009 348 759 343 717
2010 Estimated using AADF from previous year on this link 17,623 13,424 2,696 338 688 406 759
2009 Estimated using AADF from previous year on this link 17,452 13,505 2,525 325 684 427 670
2008 Manual count 17,114 13,215 2,488 350 684 383 678
2007 Estimated using AADF from previous year on this link 19,526 15,283 2,798 429 381 469 547
2006 Estimated using AADF from previous year on this link 20,069 16,036 2,564 435 609 465 569
2005 Manual count 19,967 15,988 2,523 432 389 446 578
2004 Estimated using AADF from previous year on this link 19,577 15,579 2,474 558 485 422 544
2003 Manual count 19,664 15,548 2,497 555 599 479 585
2002 Estimated using AADF from previous year on this link 22,093 17,389 2,694 556 303 672 782
2001 Estimated using AADF from previous year on this link 22,114 17,424 2,688 572 291 665 765
2000 Manual count 21,756 17,082 2,698 583 303 642 751

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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 27127 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 27127 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. 50
Raw counts Vehicle counts recorded at this count point. 144

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