Traffic Region: East of England
Traffic Authority: Hertfordshire
Road Number: A1
Road Type: M or Class A Trunk Motorway
OS Grid: TQ224999
Location: South Mimms
Census Point ID: 74654
Census Point Coverage: A1 between A1 and M25
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| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pedal Cycles | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Motorcycles and Mopeds | 706 | 519 | 938 | 872 | 464 | 738 | 693 | 536 | 709 | 643 | 721 | 639 | 476 | 603 | 574 | 637 | 662 | 455 |
| Cars | 36,098 | 33,453 | 36,888 | 37,991 | 36,261 | 37,034 | 38,337 | 36,311 | 39,445 | 35,716 | 37,069 | 37,370 | 37,075 | 38,376 | 39,262 | 34,720 | 35,759 | 37,661 |
| Buses and Coaches | 228 | 294 | 260 | 352 | 216 | 255 | 264 | 263 | 258 | 261 | 272 | 268 | 196 | 211 | 250 | 213 | 217 | 172 |
| Light Goods Vehicles | 5,409 | 6,083 | 6,026 | 5,827 | 6,067 | 6,186 | 7,167 | 7,544 | 8,601 | 7,713 | 7,779 | 8,219 | 6,616 | 8,095 | 8,657 | 9,449 | 10,204 | 9,533 |
| Two-axle Rigid HGVs | 1,053 | 1,077 | 1,513 | 1,461 | 1,187 | 1,033 | 1,309 | 1,239 | 1,056 | 862 | 863 | 872 | 885 | 914 | 967 | 875 | 928 | 885 |
| Three-axle Rigid HGVs | 97 | 92 | 91 | 88 | 87 | 103 | 149 | 140 | 141 | 117 | 100 | 164 | 90 | 150 | 175 | 159 | 153 | 151 |
| Four-axle Rigid HGVs | 154 | 222 | 306 | 253 | 134 | 143 | 176 | 330 | 375 | 298 | 173 | 430 | 407 | 497 | 530 | 466 | 528 | 310 |
| Three-axle Articulated HGVs | 184 | 214 | 186 | 245 | 223 | 234 | 222 | 182 | 209 | 126 | 157 | 114 | 115 | 101 | 114 | 131 | 137 | 89 |
| Five-axle Articulated HGVs | 273 | 275 | 287 | 301 | 312 | 310 | 487 | 375 | 386 | 331 | 321 | 223 | 110 | 179 | 203 | 409 | 393 | 448 |
| Six-axle Articulated HGVs | 181 | 279 | 208 | 212 | 203 | 220 | 268 | 239 | 252 | 302 | 265 | 487 | 513 | 509 | 516 | 304 | 318 | 233 |
| All HGVs | 1,942 | 2,159 | 2,591 | 2,560 | 2,146 | 2,043 | 2,611 | 2,505 | 2,419 | 2,036 | 1,879 | 2,290 | 2,119 | 2,349 | 2,506 | 2,343 | 2,457 | 2,115 |
| All motor vehicles | 44,383 | 42,508 | 46,703 | 47,602 | 45,154 | 46,256 | 49,072 | 47,159 | 51,432 | 46,369 | 47,720 | 48,786 | 46,482 | 49,634 | 51,250 | 47,362 | 49,300 | 49,936 |
Figures are daily averages calculated from all traffic counts over the course of the year.
Values are rounded to the nearest whole number.
A value of zero for any entry means that there were either no recorded vehicles of that type or too few to register after rounding.
A blank value means that there were no counts made in that year.
Click or tap on the column headings to see a pie chart of the data.