Skip to main content
Road traffic statistics

36002

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name M1
Road type Major
Start junction road 9
End junction road LA Boundary
Link length 3.30km (2.05 miles)
Easting & Northing 509100,215300
Latitude & longitude 51.82568,-0.41831

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 171,450 110,786 38,430 21,607 0 397 230
2023 Estimated using AADF from previous year on this link 182,969 119,214 40,107 22,971 0 430 247
2022 Automatic counter 178,886 115,993 38,835 23,379 0 443 236
2021 Manual count 143,273 91,544 30,570 20,623 0 352 184
2020 Automatic counter 152,775 98,319 30,626 23,091 0 323 416
2019 Manual count 160,373 113,092 27,525 18,748 0 435 573
2018 Automatic counter 177,875 129,247 26,036 21,438 0 523 631
2017 Manual count 163,821 120,051 23,255 19,452 0 485 578
2016 Estimated using AADF from previous year on this link 158,529 113,963 23,255 20,217 0 526 569
2015 Manual count 155,892 113,040 21,898 19,855 0 519 581
2014 Manual count 154,640 112,467 22,894 18,038 0 534 707
2013 Manual count 139,935 104,362 18,253 15,905 0 624 791
2012 Manual count 134,295 103,577 16,131 13,538 0 417 632
2011 Manual count 115,440 87,024 14,062 13,269 0 440 645
2010 Manual count 127,646 92,473 18,215 15,625 0 661 672
2009 Manual count 148,118 110,126 20,238 16,538 0 630 586
2008 Manual count 120,721 88,849 14,999 15,532 0 628 713
2007 Manual count 119,015 85,914 15,515 16,417 0 612 557
2006 Manual count 117,139 86,508 14,077 15,297 0 446 811
2005 Estimated using AADF from previous year on this link 134,227 99,877 15,265 17,493 0 662 930
2004 Manual count 134,252 101,090 13,752 17,904 0 669 837
2003 Manual count 116,833 90,535 9,324 15,769 0 539 666
2002 Manual count 133,192 99,262 12,696 19,841 0 795 598
2001 Manual count 123,403 92,245 13,710 16,144 0 746 558
2000 Manual count 123,559 90,568 14,485 16,774 0 760 972

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 36002 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 36002 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. 432

To apply more filters to downloads, or retrieve data split into pages you can use our API.