Hertfordshire

In 2016 Hertfordshire had 299 count points.

Individual count point data and downloads ↓


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Traffic figures at the regional and national level are robust, and are reported as National 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.

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 two columns - Estimation_method and Estimation_method_detailed – 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.


Hertfordshire 2016 count points

Download all street-level traffic data for Hertfordshire from 2000 to 2016. About traffic data.

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AADF Download (CSV) (Metadata)

Traffic Download (CSV) (Metadata)

Explanatory notes (metadata)
Traffic counts - metadata (PDF)
Region

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Local authority profile

Hertfordshire profile →

Count Point id Road Road category Start Junction End Junction Length (miles) AADF all years (CSV)
6067 A1(M) TM 7 / A602 8 3.11 Download
6078 A1001 PU A1(M) A1057 0.68 Download
6148 A5183 PR B487 A5 1.8 Download
6149 A5183 PU A414 A1081 1.43 Download
6177 A1081 PR Beesonend Lane, Harpenden Sandridgebury Lane, St Albans 1.86 Download
6178 M25 TM 23 22 2.98 Download
6185 A1170 PR Quincey Rd, Hertford A10 0.43 Download
6186 A10 PR A10 spur to A1170 A414 1.43 Download
6455 A4251 PU A4146 A414 0.5 Download
6456 A41 PR B462 A4008 / M25 J5 0.5 Download
6653 A120 PR A10(T) A1184 / A250 5.84 Download
7053 A405 TR M1 M25 0.75 Download
7054 M25 TM 17 18 1.43 Download
7065 A411 PU A4140 A409 0.81 Download
7067 A412 PU Long Lane A404 1.12 Download
7073 A414 PR B1197 London Rd A10 0.93 Download
7074 A1057 PR Lyon Way, St Albans Poplar Avenue, Hatfield 0.99 Download
7075 A414 PU A4251 A4146 0.5 Download
7221 A507 PR Wallington Rd, Baldock A10 7.64 Download
7320 A602 PU A1070 A1155 0.19 Download
7469 A1000 PU A111 B156 0.5 Download
7651 A4125 PU A4178 A411/A4008 0.43 Download
7903 M25 TM 20 21 2.92 Download
8044 A1000 PU A1000 split A1M Junction 6/B656/B197 0.37 Download
8237 A1000 PU inner ring road inner ring road 0.68 Download
8291 A411 PU Upton Rd A411 Beechen Grove 0.12 Download
8383 A1(M) TM 3 4 2.11 Download
8410 A4251 PU A414 Nash Mills Lane 1.3 Download
8510 A404 PR A4145 LA Boundary 1.49 Download
8582 A4178 PU A4125 A4145 roundabout 0.75 Download
8706 A505 PR A1(M) Baldock Lane 0.19 Download
8707 A412 PU A411 A41(T) 1.55 Download
9015 A41 PR M25 Junction 20 A414 3.04 Download
9017 A4251 PR Hall Park Gate, Berkhamstead A41 1.74 Download
16001 M1 TM 5 6 2.49 Download
16064 A1(M) TM 5 6 2.05 Download
16072 A1 TR A5135 A1M 2.05 Download
16138 A5183 PR A4147 B487 3.17 Download
16168 A1081 PU A5183 A4147 0.31 Download
16172 A10 PU Shrubbery Grove Sun Hill 0.31 Download
17016 A414 PR A1081 A1(M) 3.17 Download
17017 A405 PU A41 A412 1.43 Download
17026 A411 PR A5183 A1(T) 2.05 Download
17027 A411 PU Courtlands Drive A412 1.62 Download
17036 A4147 PR King Harry Lane roundabout A5183 0.75 Download
17277 A119 PR A602 Bramfield Rd, Hertford 3.79 Download
17278 A602 PR Whitehill Rd, Hitchin A1(M) 2.24 Download
17424 A1000 PU A1001 A414W 2.24 Download
17453 A1072 PU A602 A1155 1.49 Download
17494 A10 PR main A10 A1170 0.31 Download
17624 A414 PR A4147 M1 0.62 Download
17837 A1250 PU A120 / A1184 A1059 1.55 Download
18028 A1000 PU B195W Ring Road Junction S 0.5 Download
18029 A602 PR A1(M) A1072 0.37 Download
18276 A411 PU A4145 A411 Beechen Grove split 0.37 Download
18333 A1000 PU A6129 B195 W 0.62 Download
18396 A5183 PR A41 A411 0.56 Download
18397 A4178 PU A411 A412 0.12 Download
18537 A411 PU A4008 A4008 0.12 Download
18685 A1170 PR St Margaret's Rd A10 0.5 Download
19016 A4251 PR A41 B4505 0.75 Download
26000 M1 TM 7 8 0.99 Download
26069 A1(M) TM 8 9 2.61 Download
26072 A41 PR A4251 B488/B4635 2.05 Download
26082 A1001 PU A1(M) jn2 A1(M) jn3 0.87 Download
26142 A5 TR B4540 M1 jn9 3.42 Download
26143 A5183 PU A4147 A4147 0.19 Download
26172 A1081 PU B487 B653 0.68 Download
26173 A1081 PR M25 Junction 22 A414 1.55 Download
26178 A10 PR A414 A602 1.49 Download
26179 A10 PR A1170 A10 spur to A1170 0.62 Download
26197 A1184 PU LA Boundary Station Rd, Sawbridgeworth 1.55 Download
26461 A41 PU Woodmere Ave A412 0.81 Download
26667 A1250 PU A1060 Parsonage Lane 0.93 Download
27080 A404 PU M25 A412 1.62 Download
27084 A405 PR M25 Tippendell Lane, St Albans 1.18 Download
27085 M25 TM 18 19 2.61 Download
27095 A411 PR A409 A41(T) 0.37 Download
27096 A412 PU A404 Riverside Drive A404 Chorleywoood Rd 0.31 Download
27103 A10 PR A10 main route A1170 0.37 Download
27104 A414 PU A1M / A1001 / A6129 A1000 (midpoint) 0.99 Download
27105 A414 PU A4146 A4147 1.93 Download
27246 A505 PU B656 Stotwold Rd/Queenswood Drive 0.81 Download
27492 A1001 PU A1(M) A1000 1.06 Download
27530 A1072 PU A1070 A1155 0.43 Download
27539 A1081 PR LA boundary M25 1.93 Download
27722 A4145 PU Chenies Way A4178 roundabout 1.3 Download
27839 A6129 PU B197 A1000 1.06 Download
27840 A505 PU A600 B656 0.87 Download
27878 A120 PR A1184 / A250 LA Boundary 2.17 Download
27953 A4178 PU A4145 A411 0.31 Download
27963 A505 PR A1198 A10 0.81 Download
27988 A602 PU A505 B656 0.68 Download
28319 A411 PU A412 A411 Exchange Rd 0.31 Download
28412 A1001 PU A1057 A1M / A414 / A6129 1.55 Download
28439 A4147 PR A4146 Aycliffe Drive, Hemel Hempstead 0.99 Download
28440 M25 TM 21A 21 0.62 Download
28519 A1(M) TM 2 3 0.87 Download
36001 M1 TM LA boundary 5 3.23 Download
36002 M1 TM 9 LA Boundary 2.05 Download
36067 A1(M) TM A1000/B197 7 / A602 3.91 Download
36147 A5183 PR A411 Park Street Lane, St Albans 5.84 Download
36176 A1081 PU A4147 B651 0.25 Download
36181 A10 PU Sun Hill Melbourn Rd 0.99 Download
36182 A10 PR A602 A1170 0.93 Download
36183 A10 PR A10 spur to A1170 Dinant Link Rd A10 spur to A1170 Ware Rd 1.43 Download
36184 A10 PR A121 B198 College Rd 0.87 Download
36464 A4251 PU B4506 A416 1.24 Download
36465 A41 PR A417 / M25 Junction 19 SPUR M25 Junction 20 1.24 Download
36684 A119 PU A414 A119 Amwell End 2.17 Download
36686 A1250 PU A1060 A1059 0.12 Download
37122 A411 PU A411 Beechen Grove split A4008 0.19 Download
37131 A414 PU A119 Cross Lane A119 Ware Rd 0.75 Download
37132 A4147 PU A5183 A1081 0.62 Download
37273 A505 PU B655 A602 0.19 Download
37276 A507 PR A1(M) Salisbury Rd, Baldock 1.49 Download
37386 A602 PU A602 split A1155 0.68 Download
37537 A1000 PU A1000 Mill Green Lane A6129 1.55 Download
37538 A1000 PR LA boundary Hill Rise, Potters Bar 1.68 Download
37612 A1155 PU A1155 Fairlands Way A602 0.43 Download
37650 A1170 PU A10 Postwood Rd, Hertford 1.24 Download
37752 A4125 PU B4542 A411 2.24 Download
37759 A4140 PU A409 A411 0.62 Download
37822 A5135 PU B5378 Newark Green roundabout 0.99 Download
38021 M25 TM 21A 22 4.29 Download
38128 A1000 PU B156 School Rd 0.5 Download
38413 A6129 PU A1M / A1001 / A414 B197 0.5 Download
38496 A1170 PU A119 A119 0.31 Download
38497 A602 PU A1155 A1070 0.43 Download
38536 A4147 PU B487 A414 1.55 Download
38786 A412 PU A404 A4178 3.42 Download
39015 A41 PR A414 A4251W 1.55 Download
46001 M1 TM 6A 7 2.55 Download
46065 A1(M) TM A1000 Hertford Road A1000/B197 0.56 Download
46078 A1(M) TM 1 2 4.04 Download
46181 A1081 PU A414 A5183 2.17 Download
46185 A10 PR A120 A507 5.1 Download
46186 A10 PR A10 spur to A1170 High Road Turnford A10 spur to A1170 Dinant Link Rd 2.73 Download
46197 A1184 PR Station Rd, Sawbridgeworth B1383 2.17 Download
46463 A4251 PR A41 / B4635 Boswick Lane, Berkhamstead 2.61 Download
46464 A41 PU A412 A405 0.93 Download
47089 A414 PR M10 A1081 1.86 Download
47100 A411 PR A41(T) A5183 0.99 Download
47109 A414 PR A1000 Mill Green Lane B1455 Holwell Lane 2.05 Download
47253 A505 PU Stotwold Rd/Queenswood Drive A6141 1.86 Download
47354 A602 PR Hertford Rd, Stevenage A119 3.36 Download
47499 A1000 PR B158 Dixons Hill Rd, Welham Green 1.8 Download
47536 A1072 PU A1155 A602 1.24 Download
47574 A1155 PU A1072 A602 0.37 Download
47576 A1170 PU A119 B1004 0.43 Download
47578 M25 TM 23 24 2.61 Download
47714 A4145 PU A4178 roundabout A411 0.12 Download
47965 A5183 PU A1081 A4147 0.62 Download
48041 M25 TM 19 20 1.68 Download
48114 A412 PR A412 Uxbridge Rd M25 0.62 Download
48303 A10 PR M25 A121 0.62 Download
48358 A411 PU Upton Rd A4145 0.25 Download
48479 A119 PU A119 Amwell End A1170 0.25 Download
48480 A602 PU A1155 B197 0.62 Download
48481 A404 PU A412 A4145 0.68 Download
48585 A602 PR A119 A10 3.91 Download
48767 A1155 PU A1155 St George's Way A1072 1.86 Download
48768 A121 PU A121 / A1010 LA Boundary 0.81 Download
49016 A4251 PU B4505 A4146 0.62 Download
49030 A41 PR A4251 W A416 2.61 Download
56002 M1 TM 8 9 4.41 Download
56064 A1(M) TM 9 LA Boundary 3.29 Download
56070 A1(M) TM 4 5 1.49 Download
56103 A1070 PU A1072 A602 0.31 Download
56146 A5183 PR B487 B487 0.56 Download
56173 A10 PR A10 main route A1170 0.87 Download
56180 A1081 PR The Common, Harpenden LA Boundary 1.55 Download
56282 M25 TM 19 A41 1.18 Download
56432 A41 PR A5183 / A5 A411 0.81 Download
56466 A41 PR A411 B462 2.42 Download
56641 A111 PU Hill Rise A1000 0.31 Download
56822 A600 PR Turnpike Lane, Hitchin LA Boundary 2.36 Download
57041 A1000 PR B157 B158 0.25 Download
57110 A4147 PR Greenacres, Hemel Hempstead King Harry Lane roundabout 2.8 Download
57111 A405 PR A412 M1 0.87 Download
57123 A412 PU A41(T) A405(T) 0.93 Download
57179 A505 PR LA Boundary B655 5.1 Download
57217 A505 PR Baldock Road roundabout A1198 1.55 Download
57226 M1 TM 6 6A 0.75 Download
57271 A505 PU A505 Old Park Rd A600 0.19 Download
57343 A602 PU A1072 A602 Monkswood Way 0.31 Download
57468 A1000 PU A1000 Mundells A1000 Hertford Rd 1.3 Download
57491 A1155 PU A602 A1155 St George's Way 0.31 Download
57501 A1072 PU A602 A1070 0.68 Download
57636 A1000 PU Ring Road Junction S Ring Road Junction N 0.12 Download
57673 A4008 PU LA Boundary A4008 split 1.99 Download
57768 A411 PU Beechen Grove split A411 Exchange Rd 0.5 Download
57900 A602 PU Coreys Mill Lane A1072 0.37 Download
58089 A411 PU A4008 A4140 1.74 Download
58090 A412 PU A4178 A411 0.25 Download
58391 A1170 PU A10 A10 3.11 Download
70244 A416 PU A416 split Kingshll Way Rndbt A4251 1.12 Download
70390 A505 PU A602 Old Park Rd 0.37 Download
70391 A505 PU A602 Bedford Rd 0.25 Download
73028 A4146 PR A4147 LA boundary 3.98 Download
73173 A412 PR LA Boundary A412 split 2.24 Download
73174 M25 TM LA Boundary 17 1.74 Download
73175 A404 PU road from North Hill, Chorleywood M25 0.99 Download
73177 A416 PR LA Boundary A416 split 0.37 Download
73483 M25 TM 24 LA Boundary 0.31 Download
73484 A1005 PR LA Boundary M25 0.31 Download
73485 A111 PR LA Boundary M25 0.5 Download
73486 A1010 PU LA Boundary A121 0.37 Download
73513 A1060 PU B1383 Bedlams Lane 0.31 Download
73515 A414 PR Eastwick Road roundabout LA Boundary 0.06 Download
73619 A409 PU LA Boundary A411 0.62 Download
73630 A4125 PU LA Boundary B4542 0.37 Download
73631 A505 PR A10 LA Boundary 1.24 Download
74203 A119 PU A119 A1170 0.12 Download
74653 A1 TR A1M M25 0.31 Download
74654 A1(M) TM A1 M25 0.31 Download
74656 A416 PR A416 Chesham Road A416 Kingshill Way 0.25 Download
74657 A416 PR A416 Chesham Road A41 0.06 Download
74658 A416 PR A416 Kingshill Way A41 0.12 Download
74659 A41 PR A416 A416 0.25 Download
74662 A1000 PU A414 (midpoint) A1000 Mill Green Lane 0.19 Download
74663 A414 PR A1000 (midpoint) A1000 Mill Green Lane 0.31 Download
74665 A5 TR M1 (midpoint) A5183 0.06 Download
74667 A602 PU A602 merge A602 split 0.19 Download
74668 A602 PU A602 merge A602 split 0.25 Download
74669 A602 PU A1072 A602 split 0.19 Download
74675 A4008 PU A4008 split A411/A4125 0.12 Download
74676 A4008 PU A4008 split A411/B462 0.12 Download
75314 A41 PR LA Boundary A5183 0.06 Download
77080 A10 PU A10 main route A10 spur/A1170 High Road Turnford 0.62 Download
77081 A10 PU B156 Halfhide Lane A10 spur 0.43 Download
78115 A4251 PU A416 Hall Park Gate 0.93 Download
78116 A4251 PU Boswick Lane B4506 0.62 Download
78119 A1060 PR Bedlams Lane LA Boundary 0.12 Download
78120 A1250 PR Parsonage Lane LA Boundary 0.25 Download
78121 A1184 PU Moor Hall Lane B1004 0.68 Download
78197 A1081 PU Beesonend Lane B487 0.68 Download
78198 A1081 PU B653 The Common 1.8 Download
78208 A1057 PU Poplar Avenue A1001 0.5 Download
78212 A4251 PU Nash Mills Lane, Hemel Hempstead Home Park Mill Link Rd, Kings Langley 1.55 Download
78213 A4147 PU A414 Greenacres 0.81 Download
78215 A4147 PU Aycliffe Drive B487 0.37 Download
78221 A414 PU Campfield Rd A119 0.25 Download
78222 A414 PU A119 B1197 London Rd/John Tate Road roundabout 0.56 Download
78223 A119 PU Bramfield Rd A414 0.62 Download
78224 A1170 PU Postwood Rd A119 0.19 Download
78225 A1170 PU B1004 Quincey Rd 0.68 Download
78226 A602 PU B656 Whitehill Rd 0.56 Download
78227 A600 PU A505 Turnpike Lane 0.93 Download
78228 A505 PU Baldock Lane A505 0.81 Download
78230 A507 PU A505 Wallington Rd 0.5 Download
78231 A507 PU Salisbury Rd A505 0.25 Download
78279 A1000 PU Hill Rise A111 0.31 Download
78280 A111 PR M25 Hill Rise 0.19 Download
78281 A1000 PR School Rd, Potters Bar B157 1.06 Download
78297 A10 PR A507 Shribbery Grove, Royston 6.52 Download
78298 A10 PR Melbourn Rd, Royston A505 0.25 Download
78307 A1000 PU Dixons Hill Rd A1001 0.68 Download
78319 A5183 PU Park Street Lane M10 0.75 Download
78320 A405 PU Tippendell Lane A414 0.62 Download
78321 A1057 PU A1081/A4147 Lyon Way 2.67 Download
78322 A1081 PU Sandridgebury Lane B651 Stonecross 0.87 Download
78323 A602 PU B197 Hertford Rd 2.11 Download
78324 A602 PR A1(M) Coreys Mill Lane 0.43 Download
78350 A4145 PR A404 Chenies Way, Watford 2.24 Download
78351 A412 PR A412 Denham Way Long Lane 0.25 Download
78352 A404 PR LA Boundary road from North Hill 0.5 Download
78353 A411 PR M25 Courtlands Drive 0.68 Download
78354 A4251 PR Home Park Mill Link Rd, Kings Langley M25 Jn20 0.37 Download
78355 A41 PR A4008 / M25 J5 Woodmere Ave 0.5 Download
78364 A1170 PU A10 St Margaret's Rd 1.12 Download
78365 A10 PU B198 College Rd A1170 1.12 Download
80876 A10 PR A10(T) A120 4.35 Download
80927 A41 PR LA Boundary Buckinghamshire County B4009 0.06 Download
81052 A505 PR A1(M) Baldock Roundabout 8.95 Download
81395 A4146 PR Warners End Road A4147 0.62 Download
81396 A4146 PU A414 Warners End Road 0.81 Download
81469 A414 PR A1170 Eastwick Road roundabout 5.1 Download
81470 A414 PR A414 M1 (8) 0.99 Download
81471 A411 PU A4008 A4008 1.12 Download
84029 A414 TR M1 Junction 7 Roundabout A414, A5183 and A405 2.86 Download
84058 A41 PR 0.31 Download
84059 A41 PU 0.43 Download
84060 A41 PU 0.25 Download
84061 A41 PU 0.25 Download
84062 A41 PU 0.31 Download
99225 A121 PR B176 A10 0.5 Download
99428 A121 PU A1010 B176 0.37 Download
99435 A4008 PR A411 A41/M1 roundabout 1.55 Download
99436 A4146 PU A4251 A414 0.56 Download
99680 A1000 PU A1000 split A1M/B197 S 0.25 Download
99681 A41 PR A416 A4251 4.47 Download
99707 A1059 PU B1259 A1250 0.25 Download
99709 A1184 PR B1383 Moor Hall Lane 1.37 Download
99710 A1184 PU B1004 A120/1250 0.93 Download
99712 A1060 PU A1250 B1383 0.37 Download
99716 A1000 PU Bessemer Rd A1000 split 0.68 Download
99944 A414 PR A41 A4251 0.43 Download
99953 A414 PR B1455 Campfield Rd, Hertford 3.48 Download

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