Table
Road traffic volumes, by type of vehicle. Average per vehicle. Kms | 2013 | 2014 | 2015 | 2016 | 2017 |
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| All vehicles | 13 523 | 13 264 | 13 152 | 13 128 | 13 017 |
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| All passenger cars | 12 670 | 12 411 | 12 347 | 12 349 | 12 228 |
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| Passenger cars | 12 560 | 12 305 | 12 248 | 12 258 | 12 143 |
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| Taxis | 59 520 | 58 975 | 57 894 | 58 298 | 56 875 |
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| Ambulances | 34 045 | 34 765 | 34 567 | 34 498 | 34 100 |
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| Motor homes | 6 690 | 6 340 | 6 120 | 5 893 | 5 784 |
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| All buses | 31 363 | 31 966 | 32 374 | 32 581 | 34 002 |
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| Mini-buses | 11 975 | 11 831 | 11 649 | 11 892 | 11 736 |
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| Buses and coaches | 39 469 | 39 369 | 39 031 | 38 167 | 39 639 |
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| All vans and small lorries | 15 031 | 14 789 | 14 476 | 14 351 | 14 278 |
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| Small lorries | 11 373 | 10 780 | 10 467 | 10 082 | 9 636 |
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| Small combined vehicles | 11 500 | 10 936 | 10 601 | 10 357 | 9 873 |
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| Large combined vehicles | 9 259 | 8 635 | 8 374 | 7 971 | 7 289 |
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| Small vans | 15 091 | 14 837 | 14 489 | 14 267 | 14 178 |
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| Large vans | 17 524 | 17 172 | 16 632 | 16 512 | 16 279 |
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| All heavy lorries and road tractors | 35 854 | 35 686 | 35 530 | 35 407 | 35 565 |
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| Lorries with gross vehicle weight of 12 tonnes or less | 12 803 | 12 582 | 12 533 | 11 928 | 11 659 |
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| Lorries with gross vehicle weight over 12 tonnes | 31 586 | 31 227 | 30 709 | 30 444 | 30 656 |
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| Road tractors | 64 661 | 63 980 | 64 696 | 64 940 | 64 602 |
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