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Road traffic statistics

7652

Details

AADF latest year 2024
Region London
Local authority Harrow
Road name A4127
Road type Major
Start junction road LA Boundary
End junction road A4005
Link length 0.70km (0.43 miles)
Easting & Northing 515660,186000
Latitude & longitude 51.56103,-0.33287

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 20,887 16,556 2,771 562 236 613 385
2023 Estimated using AADF from previous year on this link 20,942 16,653 2,756 566 211 586 382
2022 Estimated using AADF from previous year on this link 20,925 16,688 2,708 573 206 578 379
2021 Manual count 20,157 16,247 2,494 541 201 501 374
2020 Estimated using AADF from previous year on this link 13,695 11,179 1,803 241 191 187 285
2019 Estimated using AADF from previous year on this link 17,679 14,747 2,068 276 154 246 341
2018 Estimated using AADF from previous year on this link 17,632 14,709 2,069 278 164 233 343
2017 Estimated using AADF from previous year on this link 17,622 14,722 2,028 284 166 231 357
2016 Estimated using AADF from previous year on this link 17,657 14,726 2,045 292 170 223 372
2015 Estimated using AADF from previous year on this link 17,862 15,037 1,982 283 165 208 352
2014 Estimated using AADF from previous year on this link 17,864 15,087 1,905 285 144 220 367
2013 Manual count 17,785 15,044 1,843 303 128 212 382
2012 Estimated using AADF from previous year on this link 19,844 17,155 1,724 494 42 166 303
2011 Estimated using AADF from previous year on this link 20,171 17,489 1,766 455 49 153 308
2010 Estimated using AADF from previous year on this link 20,211 17,541 1,775 444 49 153 298
2009 Manual count 20,711 18,028 1,795 445 51 163 280
2008 Estimated using AADF from previous year on this link 28,491 24,107 2,876 795 110 218 495
2007 Estimated using AADF from previous year on this link 29,130 24,674 2,938 808 94 223 487
2006 Estimated using AADF from previous year on this link 29,356 25,050 2,875 719 73 227 485
2005 Manual count 28,896 24,598 2,900 727 59 209 462
2004 Estimated using AADF from previous year on this link 28,990 25,152 2,679 492 48 186 481
2003 Estimated using AADF from previous year on this link 28,751 24,854 2,830 453 55 194 420
2002 Manual count 28,968 25,361 2,570 484 38 188 365
2001 Estimated using AADF from previous year on this link 26,715 23,397 2,165 506 101 278 369
2000 Estimated using AADF from previous year on this link 26,667 23,373 2,159 532 92 258 345

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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 7652 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 7652 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. 120

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