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Road traffic statistics

48041

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name M25
Road type Major
Start junction road 19
End junction road 20
Link length 2.70km (1.68 miles)
Easting & Northing 507421,199705
Latitude & longitude 51.68584,-0.44748

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 147,345 95,213 37,271 14,392 0 372 97
2023 Estimated using AADF from previous year on this link 154,824 101,059 38,214 15,051 0 397 103
2022 Automatic counter 151,158 98,329 37,003 15,320 0 409 98
2021 Manual count 132,684 85,084 32,279 14,878 0 361 83
2020 Automatic counter 116,025 79,731 21,766 14,041 0 229 258
2019 Manual count 143,411 106,361 22,797 13,474 0 359 419
2018 Automatic counter 147,252 108,647 24,321 13,508 0 441 335
2017 Manual count 154,755 115,135 24,799 14,005 0 465 351
2016 Estimated using AADF from previous year on this link 160,461 122,354 23,810 13,569 0 489 239
2015 Manual count 157,725 121,363 22,420 13,214 0 483 244
2014 Manual count 150,811 116,490 20,631 12,903 0 517 271
2013 Manual count 141,341 109,940 17,679 12,934 0 451 335
2012 Manual count 139,875 110,336 17,641 11,164 0 354 379
2011 Manual count 102,486 78,434 11,244 12,240 0 377 191
2010 Manual count 114,344 88,766 12,870 12,154 0 384 170
2009 Manual count 101,920 80,312 11,378 9,562 0 461 207
2008 Estimated using AADF from previous year on this link 115,918 86,844 15,822 11,999 0 804 449
2007 Estimated using AADF from previous year on this link 115,765 87,543 14,787 12,225 0 836 374
2006 Estimated using AADF from previous year on this link 122,364 94,744 14,137 12,332 0 792 359
2005 Manual count 121,256 94,461 13,163 12,575 0 680 377
2004 Manual count 116,596 90,135 12,121 13,348 0 566 426
2003 Estimated using AADF from previous year on this link 125,100 98,318 12,922 12,609 0 749 502
2002 Manual count 123,477 96,770 12,366 13,219 0 696 426
2001 Manual count 126,442 99,115 13,363 12,810 0 569 585
2000 Manual count 113,860 88,520 11,123 13,328 0 469 420

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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 48041 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 48041 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. 360

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