Traffic Region: South West
Traffic Authority: Swindon
Road Number: A420
Road Type: Class A Principal road in Rural area
OS Grid: SU187865
Location: South Marston
Census Point ID: 78042
Census Point Coverage: A420 between A419 and supermarket roundabout
Show graph for:
| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pedal Cycles | 23 | 20 | 25 | 20 | 20 | 21 | 20 | 20 | 20 | 26 | 30 | 26 | 24 | 24 | 21 | 21 | 21 | 21 |
| Motorcycles and Mopeds | 265 | 292 | 239 | 260 | 264 | 254 | 190 | 192 | 186 | 226 | 164 | 162 | 158 | 166 | 219 | 226 | 227 | 220 |
| Cars | 17,441 | 17,982 | 17,933 | 18,328 | 18,639 | 18,509 | 19,006 | 18,873 | 18,741 | 18,722 | 17,878 | 17,771 | 17,643 | 17,432 | 19,979 | 20,582 | 20,837 | 20,812 |
| Buses and Coaches | 121 | 127 | 77 | 77 | 64 | 60 | 148 | 140 | 142 | 87 | 98 | 100 | 101 | 104 | 102 | 100 | 99 | 96 |
| Light Goods Vehicles | 2,370 | 2,504 | 2,241 | 2,481 | 2,761 | 2,888 | 2,579 | 2,857 | 2,863 | 2,717 | 2,710 | 2,772 | 2,887 | 3,065 | 2,568 | 2,854 | 3,082 | 3,262 |
| Two-axle Rigid HGVs | 839 | 828 | 725 | 754 | 805 | 810 | 652 | 665 | 647 | 581 | 448 | 440 | 437 | 446 | 547 | 572 | 600 | 618 |
| Three-axle Rigid HGVs | 162 | 187 | 139 | 153 | 172 | 169 | 120 | 122 | 134 | 84 | 99 | 104 | 112 | 123 | 92 | 104 | 100 | 103 |
| Four-axle Rigid HGVs | 187 | 188 | 222 | 253 | 295 | 313 | 170 | 191 | 197 | 158 | 165 | 182 | 204 | 234 | 194 | 203 | 234 | 242 |
| Three-axle Articulated HGVs | 372 | 338 | 175 | 168 | 162 | 145 | 173 | 150 | 141 | 166 | 113 | 85 | 66 | 51 | 151 | 193 | 199 | 202 |
| Five-axle Articulated HGVs | 595 | 529 | 479 | 429 | 383 | 338 | 648 | 624 | 591 | 590 | 424 | 412 | 405 | 399 | 490 | 507 | 473 | 474 |
| Six-axle Articulated HGVs | 278 | 322 | 298 | 331 | 366 | 392 | 335 | 348 | 366 | 358 | 419 | 437 | 459 | 484 | 379 | 393 | 405 | 417 |
| All HGVs | 2,433 | 2,392 | 2,038 | 2,088 | 2,183 | 2,167 | 2,098 | 2,100 | 2,076 | 1,937 | 1,668 | 1,660 | 1,684 | 1,736 | 1,853 | 1,972 | 2,011 | 2,056 |
| All motor vehicles | 22,630 | 23,297 | 22,528 | 23,234 | 23,911 | 23,878 | 24,021 | 24,162 | 24,008 | 23,689 | 22,518 | 22,465 | 22,473 | 22,504 | 24,720 | 25,735 | 26,256 | 26,446 |
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.