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Road traffic statistics

38815

Details

AADF latest year 2024
Region London
Local authority Bromley
Road name A21
Road type Major
Start junction road A233
End junction road A222
Link length 3.50km (2.17 miles)
Easting & Northing 541300,168000
Latitude & longitude 51.39345,0.02959

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 Automatic counter 18,905 15,119 2,699 286 260 242 560
2023 Automatic counter 19,509 15,643 2,762 296 232 238 570
2022 Automatic counter 20,478 16,468 2,852 317 226 247 594
2021 Automatic counter 19,153 15,539 2,546 291 221 207 569
2020 Automatic counter 19,012 15,377 2,547 292 248 194 602
2019 Automatic counter 21,894 18,112 2,609 300 200 227 645
2018 Automatic counter 22,210 18,369 2,654 307 217 219 660
2017 Automatic counter 22,518 18,647 2,639 316 223 221 696
2016 Estimated using AADF from previous year on this link 26,444 22,559 2,442 547 67 222 675
2015 Estimated using AADF from previous year on this link 26,798 23,034 2,368 551 65 207 638
2014 Estimated using AADF from previous year on this link 26,823 23,112 2,275 552 57 218 666
2013 Estimated using AADF from previous year on this link 26,750 23,046 2,201 598 51 211 694
2012 Manual count 26,547 22,847 2,147 586 62 216 752
2011 Estimated using AADF from previous year on this link 30,819 25,879 3,179 400 234 361 1,000
2010 Manual count 30,878 25,957 3,195 394 236 363 969
2009 Estimated using AADF from previous year on this link 30,060 24,951 3,387 436 280 322 964
2008 Manual count 30,354 25,152 3,477 470 258 341 914
2007 Manual count 28,568 22,883 3,728 528 209 341 1,088
2006 Manual count 32,688 26,749 3,909 549 242 395 1,086
2005 Manual count 32,474 27,574 2,928 603 193 368 1,001
2004 Manual count 32,374 27,357 3,074 709 79 350 884
2003 Manual count 35,407 30,326 2,922 777 103 518 864
2002 Manual count 34,185 29,402 2,645 705 119 439 994
2001 Manual count 33,778 28,790 2,712 905 149 539 832
2000 Manual count 33,130 27,739 2,999 827 163 520 1,045

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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 38815 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 38815 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. 264

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