London has more than 800 static spot speed and red-light cameras, six average speed camera schemes and a number of mobile cameras run with the Metropolitan Police. Average speed corridors run on the A2, A10, A13, A40, A316 and A406, and limits across the city range from 20 mph (32 km/h) on over half of its roads upwards. Sites are chosen mainly where people have been killed or seriously injured.
| Road | Stretch named by TfL |
|---|---|
| A2 | Black Prince to the Blackwall Tunnel |
| A10 | M25 to Southbury Road |
| A13 | In operation before the 2014 trial |
| A40 | Polish War Memorial to Paddington slip road |
| A316 | M3 to Hogarth Roundabout |
| A406 North Circular Road | Hanger Lane to Bounds Green Road |
How many speed cameras are there in London?
Transport for London (TfL) says there are over 800 static spot speed and red-light cameras in London, together with 6 average speed camera schemes and several mobile spot speed cameras. That is the figure on TfL's safety cameras page, checked in November 2026. The count will change, because TfL's Vision Zero action plan 2, published in March 2026, commits to expanding the network to at least 20 new locations.
What types of speed camera does London use?
London uses three main types, and each one measures speed differently:
- Static spot speed cameras: sensors embedded in the road detect a vehicle's speed at one point.
- Average speed cameras: number plate recognition times a vehicle between two fixed points.
- Mobile cameras: a laser device operated by trained Police Community Support Officers from the Metropolitan Police.
Red-light cameras are a fourth kind you will see at junctions, using sensors either side of the stop line. They are about signals rather than speed, but TfL counts them in the same network.
Where are the speed cameras in London?
Speed cameras in London are placed mainly where people have been killed or seriously injured, or where speeding or running red lights creates significant risk. That means they are spread across the capital rather than gathered on a few famous roads. TfL's page explains the types of camera but does not list individual sites, so we do not reproduce a full list here.
TfL's plan says new sites will include areas with persistent community concerns, proven collision risk and excessive speeds, so a road without a camera today may have one soon. The sign on the road is the thing to follow in every case.
Which London roads have average speed cameras?
TfL has named six average speed corridors in London: the A13, A2, A316, A40, A406 and A10. The table above shows the stretches TfL announced for each. The cameras in these schemes record the speed of vehicles only, according to TfL, and are not linked to any ULEZ or LEZ cameras that happen to stand nearby.
Do average speed cameras work on London roads?
The A10 is TfL's own example, and the numbers there are striking. TfL installed average speed cameras between the M25 and Southbury Road in 2020, after people were killed or seriously injured on that stretch and racing had become a persistent problem. Serious injuries fell from an average of seven a year to four in the first year, then three in both 2021 and 2022, and one in each of 2023 and 2024, with no deaths since the cameras went in.
Who enforces speed limits in London?
The police enforce all speed limits in London, including 20 mph limits, and TfL works with them on the camera network. Speeding is taken seriously for a simple reason: TfL's plan says exceeding the limit or going too fast for the conditions is a causal factor in around half of all fatal collisions in the capital.
The trend is towards more enforcement, and at more varied times. Metropolitan Police camera offences with police action rose from 294,245 in 2020/21 to 658,495 in 2022/23, and TfL's plan says Police Community Support Officers will make greater use of mobile cameras from 2026, during peak periods, later in the evenings and at weekends. When TfL brings in a 20 mph limit, it says it recalibrates the speed cameras to enforce it.
What is the speed limit in London?
The speed limit in London depends on the street, but as of 2025 some 52 per cent of the capital's roads had a 20 mph limit. Elsewhere, the general rule applies: roads with street lights have a limit of 30 mph (48 km/h) unless signs show otherwise. Two thirds of London's local authorities have a policy of 20 mph as the default on their roads.
On the roads it runs, TfL is working to these targets:
- By 2030: at least a further 65 km of the TfL Road Network lowered, making over 80 per cent of its central and inner London roads 20 mph.
- By 2035: 20 mph as the default in central and all inner London.
- Higher-speed roads: a default maximum of 40 mph where people live, take public transport, or where side roads have no traffic signals.
Our guide to 20 mph limits in Wales, London and elsewhere covers the phases already finished.
Why is London lowering its speed limits?
London is lowering its limits because slower traffic means fewer and less serious collisions. In the Congestion Charging Zone, where TfL brought in 20 mph on its roads in 2020, collisions fell by 25 per cent from 405 to 304, and collisions in which someone was killed or seriously injured fell by 24 per cent from 94 to 71. TfL cautions that the pandemic may have affected those trends. An older study of more than 150 borough schemes found that deaths and serious injuries fell by 34 per cent on roads with 20 mph limits, against a background fall of 15 per cent.
Which London roads get lower limits in 2027?
TfL's next phase starts in early 2027 at seven locations, and it includes some well-known main roads:
- From 40 mph to 30 mph: A406 Gunnersbury Avenue in Hounslow, A1 Aylmer Road and Lyttelton Road in Barnet and Haringey, and A12 Eastern Avenue in Redbridge.
- From 30 mph to 20 mph: A217 Swandon Way in Wandsworth, A21 Bromley Road and Bromley Hill in Lewisham, A24 Morden Road and Merantun Way in Merton, and A232 Wickham Road in Croydon.
What is the speed limit on the A406 North Circular?
The A406 North Circular has no single speed limit, so you need to follow the signs section by section. TfL's programme shows Gunnersbury Avenue at 40 mph today and moving to 30 mph from early 2027, and its stated principle is to set a maximum of 40 mph on its roads where there are adjoining homes, side roads without signals or bus stops. A dual carriageway here can have a lower limit than the same road a mile further on.
Part of the A406 is also an average speed corridor. When TfL announced the scheme, it named the stretch between Hanger Lane and Bounds Green Road. Street lights and a wide road can make it feel like a faster road than it is, so read each sign as you pass it rather than carrying one number around the whole route.
What is the speed limit in the Blackwall and Silvertown tunnels?
The speed limit in the Blackwall Tunnel is 30 mph, according to the RAC. The Silvertown Tunnel next to it is a restricted road under the Silvertown Tunnel Order 2018, and that order points to the 30 mph limit for restricted roads. Always follow the signs at the portal.
Is there a minimum speed in the Blackwall Tunnel?
Yes, the Blackwall and Silvertown Tunnels Byelaws 2018 say you must not drive below 10 mph in the tunnel areas, unless the flow of traffic prevents it or an authorised person directs you otherwise.
What are the height limits at the Blackwall Tunnel?
The byelaws set these height limits, and they are different in each direction:
- Northbound, lane 1: 4 metres (13 feet).
- Northbound, lane 2: 2.8 metres (9 feet).
- Southbound, both lanes: 4.7 metres (15 feet 6 inches).
Is there a map of speed cameras in London?
TfL's safety cameras page does not include a map of individual sites, although it does point to wider enforcement data. For enforcement figures it sends you to the Vision Zero Enforcement Dashboard on its road safety data page.
More data is on the way. TfL's plan says it will pilot using vehicle telematics and camera data to measure how well drivers keep to the limits across London, and will look at producing a London speed compliance map to guide traffic calming. That map would be a tool for planners, not a list of cameras, so the signs on the street remain your best guide. If you are coming in from further out, our guides to the M25 and the M1 cover the motorways that feed the capital.
What does London mean for your next drive?
In London, the limit can change every few hundred metres, and it is falling on more roads each year. Look for the repeater signs, slow down early where a main road meets homes and shops, and hold a steady speed at or below the limit on the average speed corridors, which our guide to average speed cameras in the UK explains in detail. Those few miles an hour matter most here, where people on foot and on bikes share the road with you.
Ghost is made for this kind of driving. It runs next to Google Maps and warns you safely from the background, with a banner and a tone over your music, about 700 m ahead of known fixed speed cameras and average-speed zones. As you get closer it shows the exact distance clearly, and it alerts you again at 250 m. Police checks are a different matter, because they move and Ghost does not warn about them, so the sign stays your first guide. On your phone, CarPlay, Android Auto or Apple Watch, with more than 125,000 speed cameras worldwide, Ghost helps you keep your eyes on a busy city.
