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Road traffic statistics

99436

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4146
Road type Major
Start junction road A4251
End junction road A414
Link length 0.90km (0.56 miles)
Easting & Northing 505000,206130
Latitude & longitude 51.74405,-0.48056

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 15,269 12,626 2,045 265 96 123 212
2023 Estimated using AADF from previous year on this link 15,085 12,476 2,009 265 100 124 212
2022 Manual count 14,765 12,174 1,970 274 105 133 214
2021 Estimated using AADF from previous year on this link 11,767 9,631 1,622 243 90 67 204
2020 Estimated using AADF from previous year on this link 10,685 8,807 1,416 225 121 65 172
2019 Estimated using AADF from previous year on this link 14,323 12,061 1,655 252 95 87 269
2018 Manual count 14,298 12,034 1,660 250 78 81 272
2017 Estimated using AADF from previous year on this link 16,499 13,441 2,097 496 79 98 368
2016 Estimated using AADF from previous year on this link 16,397 13,457 1,981 481 78 100 378
2015 Estimated using AADF from previous year on this link 16,042 13,250 1,814 467 84 103 408
2014 Estimated using AADF from previous year on this link 15,706 12,993 1,730 488 91 116 379
2013 Estimated using AADF from previous year on this link 15,252 12,650 1,617 470 93 121 393
2012 Estimated using AADF from previous year on this link 15,259 12,763 1,556 455 95 109 376
2011 Estimated using AADF from previous year on this link 15,404 12,965 1,538 441 100 114 346
2010 Manual count 15,307 13,004 1,378 423 90 136 366
2009 Estimated using AADF from previous year on this link 15,092 12,153 2,095 520 34 124 200
2008 Estimated using AADF from previous year on this link 14,832 11,892 2,064 563 34 111 202
2007 Estimated using AADF from previous year on this link 15,089 12,159 2,022 559 30 116 233
2006 Estimated using AADF from previous year on this link 15,248 12,357 1,920 594 48 122 255
2005 Estimated using AADF from previous year on this link 15,517 12,596 1,891 615 30 140 275
2004 Estimated using AADF from previous year on this link 16,010 13,203 1,775 571 36 170 291
2003 Estimated using AADF from previous year on this link 15,726 13,034 1,611 465 45 259 357
2002 Manual count 16,044 13,535 1,484 477 50 182 366
2001 Estimated using AADF from previous year on this link 14,714 12,462 1,353 411 53 143 345
2000 Estimated using AADF from previous year on this link 15,102 12,861 1,343 433 55 136 329

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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 99436 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 99436 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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