| Road | Town | Direction | Location | Grid Ref | Limit | Ref | Date |
|---|---|---|---|---|---|---|---|
| A1 | Borehamwood | R | central reservation | TQ212958 | 70 | 137 | |
| A1 | Edgeware | S | just into NEW 50 limit | TQ210930 | 50 | 138 | |
| A1 |   |   | Borehamwood Herts On the central reservation between Borehamwood turn and Stirling corner 70mph reversable |   | 70 | 746 | |
| A1 |   |   | Just north of / barnet roundabout at borehamwood herts, Reversable camera |   |   | 789 | |
| A10 |   |   | Occasional handheld one on the A10 Buntingford bypass just after the roundabout junction with the A507 (got a Little Chef on it). 60 mph limit |   | 60 | 852 | |
| A1000 |   |   | Herts A1000 North from A1(M) Junc 6, going into first village, just past the 40mph speed limit sign. |   | 40 | 848 | |
| A1000 |   |   | Herts A1000 N Another one on the way up the hill, still 40 mph, about 1/4 mile further on from 1. |   | 40 | 849 | |
| A1000 |   |   | Herts A1000 South from Knebworth just past exit from petrol station on entry to Woolmer Green, 40 mph speed limit |   | 40 | 850 | |
| A1000 |   |   | Herts A1000 South from Knebworth about 200 yards over brow of hill on downslope, 40 mph speed limit, about 1/2 mile further on from 3 |   | 40 | 851 | |
| A1000 | High Barnet | S | A1000 southbound coming from Potters Bar into High Barnet. The camera is in the road side greenery on the near-side and is just after the speed is reduced to 30mph. Only works as you travel south. |   | 30 | 1421 | |
| A1184 | Bishops Stortford |   | Mobile in use on th A1184 at Thorley Street between Bishops Stortford and Spelbrook |   |   | 1980 | |
| A1250 | Bishops Stortford |   | Mobile in use on Dunmow Road where the M11 feeds into Bishops Stortford (by the golf club) |   |   | 1979 | |
| A41 |   | N | A41: Watford by-pass, north bound, between Apex corner and Spur road (A410)Speed Limit = Unsure, just be careful. |   |   | 1005 | |
| A411 | Watford | B | A 411 HEMPSTEAD RD WATFORD. BETWEEN STRATFORD WAY AND LANGLEY WAY. BOTH DIRECTIONS 30 MPH ZONE |   | 30 | 1801 | |
| A411 | Watford | B | A 411 HEMPSTEAD RD WATFORD. AT LANGLEY WAY JUNCTION LIGHTS. BOTH DIRECTIONS 30 MPH ZONE |   | 30 | 1802 | |
| A411 | Watford | B | A 411 HEMPSTEAD RD WATFORD. BETWEEN LANGLEY WAY AND COURTLANDS DRIVE BOTH DIRECTIONS 30 MPH ZONE |   | 30 | 1803 | |
| A411 | Watford |   | A 411 HEMPSTEAD RD TOWARDS WATFORD. HIDDEN BEHIND TREES JUST BEFORE COURTLANDS DRIVE ( WHICH IS FIRST TURNING ON YOUR LEFT ) 4O MPH ZONE JUST BEFORE 30 AT GATSO |   | 30 | 1804 | |
| A412 |   |   | A412 (30mph limit) between Rickmansworth and Watford: Scots Hill (both directions) |   | 30 | 832 | |
| A412 |   |   | A412 (30mph limit) between Rickmansworth and Watford: Watford Road (heading towards Watford) between top of Scots Hill and Croxley underground station |   | 30 | 833 | |
| A412 |   |   | A412 (30mph limit) between Rickmansworth and Watford: Watford Road (both directions) between Croxley underground station and Two Bridges roundabout |   | 30 | 834 | |
| A412 |   |   | A412 (30mph limit) between Rickmansworth and Watford: Rickmansworth Road (both directions) just on the Rickmansworth side of the underpass by Watford Town Hall |   | 30 | 835 | |
| A412 | Watford |   | A412 ST ALBANS RD NORTH BOUND AT LIGHTS OF STOFT RD. 30MPH ZONE |   | 30 | 1808 | |
| A414 | Stanstead Abbots to Harlow |   | THREE new cameras on A414 dual carriageway between Harlow and Stanstead Abbotts, in a new 50 mph zone |   | 50 | 2308 | |
| A4155 |   |   | A4155 between Cores End and Bourne End |   |   | 516 | |
| A505 | Royston | E | Nr Kelshall turn in trees uphill |   |   | 196 | |
| A505 | Letchworth | B | Multiple, Uncertain |   |   | 197 | |
| A505 | Royston | W |   |   | 70 | 382 |   |
| A505 | Royston | E |   |   | 70 | 383 |   |
| A505 |   | E |   |   | 70 | 384 |   |
| A505 | Baldock | E |   |   | 70 | 385 |   |
| A505 | Baldock | W |   |   | 70 | 386 |   |
| A505 |   |   | A 505 through Letchworth, Herts East bound: One just after "Highfield" 30 mph limit |   | 30 | 741 | |
| A505 |   |   | A 505 through Letchworth, Herts East bound: Between St Pauls Church and the football club 30 mph |   | 30 | 742 | |
| A505 |   |   | A 505 through Letchworth, Herts East bound: Beyond the turning for Wickes and Halfords on the Retail park before Baldock, on the central reservation, reversable |   |   | 743 | |
| A505 |   |   | A 505 through Letchworth, Herts Westbound: Past the football ground prior to Willian way traffic lights 30 mph |   | 30 | 744 | |
| A505 |   |   | A 505 through Letchworth, Herts Westbound: Past Willian way lights prior to Muddy lane 30 mph |   | 30 | 745 | |
|   | Watford |   | Cameras at each end of Gammons Lane, both directions |   | 30 | 1752 | |
|   | Watford | N | Half a mile north of the junction with Langley Road |   | 30 | 1753 | |
|   | Watford | B | GAMMONS LANE WATFORD. 1/2 MILE SOUTH BOUND GATSOS BOTH DIRECTIONS, 30 MPH ZONE |   | 30 | 1805 | |
|   | Watford | B | GAMMONS LANE WATFORD. 1/2 MILE NORTH BOUND GATSOS BOTH DIRECTIONS, 30 MPH ZONE |   | 30 | 1806 | |
|   | Watford | B | THE HAREBRAKES WATFORD. 500 YARS INTO ROAD GATSOS BOTH DIRECTIONS, 30 MPH ZONE |   | 30 | 1807 |
Direction abbreviations : N,E,S,W,etc - Compass points, B - Both directions, R - Reversible