West London drivers treat the A40 as a fact of life. TfL cameras cover stretches of Western Avenue, the Hanger Lane area, and approaches tied to the Westway.
When Hanger Lane locks, the delay is visible several cameras out. That is the practical reason to open more than the junction you fear most.
Open A40 live
Jump to the London grid with search applied. Public TfL stills, free, no account.
Watch cámaras en vivoCameras on A40
Western Avenue stills show multi-lane flow and slip activity. Near Hanger Lane, the geometry is messy: roundabout arms, tunnels under the gyratory on some views, and traffic that stacks in uneven lanes.
Paddington exit slips and Westway-adjacent labels help when you are choosing between rail and a late car trip into town.
Matched public cameras for this page:
- A40 Western Ave/West End Rd (A40 beneath roundabout (winter only)) (North)
- A40 /Near Mansfield Rd (West - A40 twds Hanger Lane tunnel) (West)
- A40 Marbone Rd/Old Marbone Rd (West (A501 twds Paddington)) (Central)
- A40 Western Ave/Gibbon Rd (West - A40 twds Park Royal) (West)
- A40 / Near Connell Crescent (Zoom - HL Tunnel) (West)
- A40 Westway/Paddington Grn (West (A40 twds White City)) (Central)
Labels come from Transport for London JamCams. Search the grid with the same strings when a name is long.
When the corridor gets ugly
Inbound mornings and outbound evenings are the obvious windows. Roadworks on the A40 can hold a lane for weeks; the camera is how you see whether today is one lane or two.
Friday afternoons westbound often look worse than the midweek average even when apps sound calm.
Weekday peaks run roughly 7-9:30 a.m. and 4:30-7 p.m. local time. Rain, low sun glare, and long winter nights all cut image contrast.
How to pull the live tiles
Open London cámaras en vivo. Try search text A40 first. Refresh is about every 30 seconds. The snapshot behind this grid lists 882 cameras for London.
Deep link form: /london/?q=A40%20. Map view helps when you think in exits instead of names. Hide tiles that stay black.
Field habits
Search "A40" then add "Hanger Lane" if that is your bottleneck. Save both.
If the A40 is dead and the A4 is only slow, take the slow option. Dead means standing still in the still.
Keep A40 Western Ave/West End Rd (A40 beneath roundabout (winter only)) and A40 /Near Mansfield Rd (West - A40 twds Hanger Lane tunnel) side by side when this route decides your day. If only the downstream tile is packed, the problem may still be local.
How to read a still without kidding yourself
Look at gap length between cars first. Tight gaps and brake lights mean the next minute is slow even if one lane flickers. Empty asphalt with a single truck can be a temporary block, not a corridor failure. That is why a second camera exists.
On London, images update about every 30 seconds from Transport for London JamCams. If a frame looks frozen, wait one cycle before you declare the feed dead. Night and weather cut contrast; movement still usually shows on major roads.
For a corridor page like A40, bias toward the merge that ruins your trip. A clear mid-segment tile with a packed ramp tile means you still lose time at the ramp.
Hard limits
Tunnel and underpass views can be dark. A black frame is not always offline; wait a refresh cycle before hiding the tile.
These feeds exist for traffic operations. They are public roadside stills, not private security video and not a cinema stream. Do not try to read plates or faces. Use them to time a departure.
Source and coverage
Source on file: Transport for London JamCams. Camera count in the current London snapshot: 882. Some units drop offline without a public ticket. The grid lets you hide them so they stop cluttering the page.
Search by junction name, road number (a4, a406), or neighborhood. Area filters appear when the snapshot carries area tags. Favorites stay in local browser storage on this device only.
A note on names and search
Agency labels are written for operators, not for marketing. If "A40" returns nothing, shorten to the road shield or a cross street from the list above. The London search box matches substrings in those official names.
When two labels look alike, open both for one refresh cycle. The wrong camera wastes less time than a wrong ramp.
Mobile use without losing the plot
Turn the phone sideways on wide freeway frames. Save the London grid to your home screen if this is a daily check. Cellular data on a bridge approach is a bad moment to discover a huge uncached grid; open your favorites first.
Why this page exists next to the raw grid
The raw London grid is complete and a little hostile if you do not already know the agency labels. A focused page for A40 is a short path: primary search string, a handful of matched cameras, and the timing notes that match how people actually drive here.
If you already live on the corridor, skip the prose and keep the deep link. If you do not, read the matched list once so the abbreviations stop looking like noise.
Share the deep link with anyone meeting you. Arguments about "traffic" go faster when both people see the same still.
Nearby guides
Full grid: London cameras. City index: all cities.
TfL already publishes the images. This page is a shorter path to the ones that match "a40 cámara de tráfico london".