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Road traffic statistics

46920

Details

AADF latest year 2024
Region London
Local authority Harrow
Road name A312
Road type Major
Start junction road A4005
End junction road A404
Link length 1.20km (0.75 miles)
Easting & Northing 514700,187000
Latitude & longitude 51.57022,-0.34639

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 14,289 11,539 2,036 210 146 211 294
2023 Estimated using AADF from previous year on this link 14,335 11,607 2,024 211 131 202 291
2022 Estimated using AADF from previous year on this link 14,322 11,631 1,989 215 128 199 289
2021 Estimated using AADF from previous year on this link 13,816 11,324 1,832 203 125 172 286
2020 Estimated using AADF from previous year on this link 12,839 10,496 1,718 191 140 151 283
2019 Manual count 16,575 13,846 1,971 220 113 198 340
2018 Estimated using AADF from previous year on this link 15,279 13,300 1,303 368 9 49 259
2017 Estimated using AADF from previous year on this link 15,276 13,312 1,277 370 9 49 269
2016 Estimated using AADF from previous year on this link 15,305 13,316 1,288 373 9 47 280
2015 Estimated using AADF from previous year on this link 15,532 13,596 1,249 378 9 44 265
2014 Estimated using AADF from previous year on this link 15,539 13,642 1,200 374 8 46 277
2013 Estimated using AADF from previous year on this link 15,498 13,603 1,161 401 7 45 288
2012 Estimated using AADF from previous year on this link 15,368 13,486 1,133 391 9 46 312
2011 Manual count 15,636 13,748 1,160 369 10 42 317
2010 Estimated using AADF from previous year on this link 17,632 15,192 1,597 361 137 137 345
2009 Estimated using AADF from previous year on this link 18,056 15,614 1,615 356 141 146 325
2008 Estimated using AADF from previous year on this link 18,238 15,739 1,658 379 130 154 308
2007 Estimated using AADF from previous year on this link 18,651 16,110 1,693 386 111 158 304
2006 Estimated using AADF from previous year on this link 18,818 16,354 1,656 345 86 161 302
2005 Estimated using AADF from previous year on this link 18,520 16,060 1,671 353 69 148 288
2004 Estimated using AADF from previous year on this link 18,676 16,239 1,636 371 68 161 269
2003 Manual count 18,515 16,046 1,728 336 79 169 236
2002 Estimated using AADF from previous year on this link 18,529 16,221 1,461 440 56 204 203
2001 Estimated using AADF from previous year on this link 18,522 16,221 1,432 470 54 213 186
2000 Manual count 18,494 16,204 1,428 491 49 197 174

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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 46920 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 46920 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. 96

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