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Road traffic statistics

37193

Details

AADF latest year 2024
Region London
Local authority Hillingdon
Road name A437
Road type Major
Start junction road A312
End junction road A4020
Link length 4.70km (2.92 miles)
Easting & Northing 508872,180018
Latitude & longitude 51.50861,-0.43261

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 17,266 13,599 2,851 317 180 175 324
2023 Automatic counter 16,923 13,364 2,770 312 161 163 314
2022 Automatic counter 16,819 13,326 2,708 315 157 161 310
2021 Automatic counter 15,232 12,191 2,344 279 154 130 288
2020 Automatic counter 13,802 11,014 2,143 256 172 111 278
2019 Estimated using AADF from previous year on this link 16,044 13,125 2,219 267 139 134 300
2018 Manual count 16,007 13,091 2,220 268 148 127 302
2017 Estimated using AADF from previous year on this link 18,577 15,509 2,326 412 108 128 203
2016 Estimated using AADF from previous year on this link 18,619 15,514 2,345 425 111 124 211
2015 Estimated using AADF from previous year on this link 18,842 15,841 2,274 413 107 115 200
2014 Estimated using AADF from previous year on this link 18,827 15,895 2,185 417 93 122 208
2013 Manual count 18,746 15,849 2,114 449 83 118 217
2012 Estimated using AADF from previous year on this link 16,956 14,234 1,516 777 88 85 343
2011 Estimated using AADF from previous year on this link 17,216 14,511 1,553 726 102 78 348
2010 Estimated using AADF from previous year on this link 17,247 14,554 1,561 716 102 78 338
2009 Estimated using AADF from previous year on this link 17,641 14,958 1,578 703 106 84 318
2008 Manual count 17,835 15,079 1,620 746 97 88 302
2007 Manual count 15,600 12,863 1,684 714 117 196 143
2006 Manual count 19,500 15,285 3,195 648 196 196 176
2005 Manual count 20,026 16,711 2,000 959 98 109 247
2004 Manual count 19,344 16,336 1,934 701 83 113 260
2003 Manual count 20,427 16,916 2,391 687 159 244 189
2002 Manual count 19,993 17,161 1,916 590 66 138 188
2001 Manual count 20,582 17,900 1,932 442 134 109 199
2000 Manual count 22,704 19,774 2,008 548 36 188 186

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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 37193 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 37193 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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