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Road traffic statistics

27085

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name M25
Road type Major
Start junction road 18
End junction road 19
Link length 4.20km (2.61 miles)
Easting & Northing 505020,198090
Latitude & longitude 51.67178,-0.48269

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 185,136 131,446 36,040 16,862 0 449 339
2023 Manual count 191,883 137,227 36,492 17,339 0 472 353
2022 Automatic counter 182,815 122,506 43,692 16,059 0 456 101
2021 Manual count 160,450 106,480 37,883 15,602 0 399 86
2020 Automatic counter 135,728 93,110 27,099 15,011 0 310 198
2019 Manual count 179,442 133,114 30,231 15,242 0 514 341
2018 Automatic counter 183,105 138,416 28,132 15,587 0 547 423
2017 Manual count 179,643 136,888 26,755 15,049 0 539 413
2016 Estimated using AADF from previous year on this link 178,567 137,874 25,771 13,671 0 768 482
2015 Manual count 175,486 136,758 24,267 13,210 0 758 492
2014 Manual count 177,350 134,971 27,577 13,816 0 640 345
2013 Manual count 172,540 137,652 20,325 13,767 0 409 388
2012 Manual count 161,782 126,065 21,359 13,191 0 665 502
2011 Manual count 158,379 122,360 21,916 13,169 0 580 354
2010 Manual count 126,743 98,027 16,400 11,536 0 388 392
2009 Manual count 146,337 115,673 18,227 11,377 0 612 448
2008 Manual count 145,354 110,895 20,124 13,138 0 697 500
2007 Manual count 146,814 111,215 19,329 15,167 0 590 513
2006 Manual count 156,513 122,749 19,275 13,356 0 519 614
2005 Manual count 151,043 116,502 19,149 14,232 0 653 507
2004 Manual count 150,062 118,444 15,232 14,971 0 737 678
2003 Manual count 148,126 117,500 15,102 14,305 0 689 530
2002 Manual count 135,757 107,986 13,314 13,423 0 580 454
2001 Manual count 136,906 109,344 12,306 13,556 0 1,017 683
2000 Manual count 147,048 116,386 14,109 14,969 0 951 633

Download data

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 27085 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 27085 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. 480

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