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Road traffic statistics

7635

Details

AADF latest year 2024
Region London
Local authority Harrow
Road name A4090
Road type Major
Start junction road A312
End junction road A404
Link length 3.50km (2.17 miles)
Easting & Northing 513250,188000
Latitude & longitude 51.5795,-0.36698

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 19,106 15,599 2,293 438 158 520 254
2023 Estimated using AADF from previous year on this link 19,163 15,692 2,280 442 142 498 252
2022 Manual count 19,153 15,724 2,240 448 138 491 250
2021 Estimated using AADF from previous year on this link 17,633 14,813 2,192 239 115 142 247
2020 Estimated using AADF from previous year on this link 16,380 13,730 2,056 225 128 124 245
2019 Estimated using AADF from previous year on this link 21,188 18,113 2,358 260 104 163 294
2018 Estimated using AADF from previous year on this link 21,137 18,066 2,359 261 111 155 296
2017 Manual count 21,120 18,082 2,312 265 112 154 308
2016 Estimated using AADF from previous year on this link 17,439 14,665 1,942 506 92 143 183
2015 Estimated using AADF from previous year on this link 17,668 14,974 1,883 504 89 133 173
2014 Estimated using AADF from previous year on this link 17,654 15,025 1,810 498 77 141 181
2013 Estimated using AADF from previous year on this link 17,585 14,981 1,751 528 69 136 188
2012 Estimated using AADF from previous year on this link 17,418 14,852 1,708 514 84 139 204
2011 Estimated using AADF from previous year on this link 17,709 15,141 1,749 484 97 128 207
2010 Estimated using AADF from previous year on this link 17,755 15,186 1,758 482 97 128 201
2009 Estimated using AADF from previous year on this link 18,184 15,607 1,777 474 100 137 189
2008 Manual count 18,392 15,733 1,825 510 92 145 179
2007 Manual count 20,616 17,363 2,388 336 70 219 310
2006 Manual count 20,949 17,248 2,412 482 43 204 603
2005 Manual count 21,311 18,530 1,773 510 93 223 275
2004 Manual count 21,440 18,416 2,062 548 53 201 213
2003 Manual count 22,013 18,760 2,561 321 67 129 242
2002 Manual count 28,917 26,057 1,948 522 103 130 260
2001 Manual count 22,203 19,295 2,108 405 69 134 261
2000 Manual count 22,048 19,130 1,943 498 122 213 264

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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 7635 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 7635 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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