Frequently Asked
Questions

JamCams.co.uk is a free, independent traffic information website that provides instant access to Transport for London's (TfL) JamCam CCTV network. We display live camera feeds, road disruption data, and an interactive map to help Londoners and visitors monitor real-time road conditions across Greater London.

No. JamCams.co.uk is a completely independent website and is not affiliated with, endorsed by, or operated by Transport for London (TfL) or any government body. We are a private service that uses TfL's publicly available Open Data API under the TfL Open Data Licence to display camera data.

Yes, completely free. No registration, no subscription, no hidden charges. You can access all live camera feeds, the interactive map, road disruptions, and the location explorer at no cost. The service is funded by display advertising via Google AdSense.

No account is required. All features — including saving favourite cameras and location preferences — work without signing in. Your preferences are stored locally in your browser's storage and never transmitted to our servers.

TfL JamCams are a network of over 900 CCTV traffic monitoring cameras operated by Transport for London across Greater London. The name "JamCam" refers to their primary purpose: monitoring traffic jams and congestion. They cover motorways, A-roads, key junctions, tunnels, bridges, and major roads throughout the capital. TfL uses them to manage traffic signal timings, dispatch incident response teams, and provide real-time traffic information to the public.

TfL JamCam still images refresh every 5 minutes via TfL's Open Data API. Where video feeds are available (indicated by a video player rather than a still image), these stream in real time. The 5-minute refresh rate is set by TfL and cannot be increased by JamCams.co.uk.

TfL's JamCam network currently consists of over 900 cameras. The exact number varies as cameras are added, decommissioned, or temporarily offline for maintenance. Our live camera count on the homepage reflects the current number of active cameras returned by TfL's API at the time you load the page.

Occasionally, individual cameras may be offline, undergoing maintenance, or temporarily unavailable. This can also occur during poor weather or network connectivity issues at TfL's end. Black images are returned by TfL's API when a camera is not actively transmitting. JamCams.co.uk has no control over individual camera availability — if a feed is down, we recommend checking again after a few minutes.

Yes, TfL's JamCam network operates continuously, 24 hours a day, 7 days a week. Camera images may appear darker at night due to low ambient lighting, but most cameras have low-light capability and continue to provide useful visibility in darkness.

Click the "Use My Location" button in the blue banner at the top of the page, or the GPS icon in the search bar. Your browser will ask permission to access your device's location. If you grant permission, cameras will automatically be re-sorted from nearest to furthest from your current position. Your location is processed entirely within your browser and is never sent to our servers or stored anywhere except optionally in your own browser's local storage.

Use the search bar at the top of the cameras page. Type any London postcode, street name, area name, or camera name. Results will appear in a dropdown — select a location to sort cameras nearest to that point, or select a camera name to jump directly to that feed.

Click the heart icon (♥) on any camera card or in the camera detail view to save it as a favourite. Favourited cameras appear at the top of your camera list and are accessible from the Favourites page. Favourites are stored in your browser's local storage — they are not tied to an account and will persist on your device across sessions.

The Map View shows the geographical positions of all TfL JamCam cameras (blue square markers) and road disruptions (red circle markers) across London, plotted on an OpenStreetMap base layer. You can:

• Toggle camera and disruption layers on/off using the filter buttons
• Click any camera marker to see a preview image and open the live feed
• Click any disruption marker to see details of the incident
• Use the "My Location" button to centre the map on your current position

No. JamCams.co.uk does not operate any user databases and stores no personal data on our servers. The only data stored is in your own browser's local storage: your saved favourite cameras, your last-used location preference, and your cookie consent choice. This data never leaves your device and can be cleared at any time through your browser settings.

JamCams.co.uk uses browser local storage (not traditional cookies) for essential functionality like saving your favourites. We also use Google AdSense to display advertisements, which may set advertising-related cookies on your device if you accept our cookie consent notice. Full details are in our Cookie Policy.

All camera images, video feeds, and road disruption data are sourced directly from TfL's Open Data API. When you view a camera on JamCams.co.uk, your browser makes a direct request to TfL's servers to retrieve the image. JamCams.co.uk does not store, proxy, or re-broadcast any camera footage. Camera data is provided under the TfL Open Data Licence.