Live Traffic Camera—A4 Chiswick Roundabout

Traffic on the A4 in West London is heaviest during the weekday morning rush (07:30–09:30) and the evening peak (16:30–19:00). School term-time adds additional pressure in the morning drop-off and afternoon pick-up windows. The live camera above is the best indicator of current conditions at this specific point — TfL refreshes JamCam images every five minutes, giving you an up-to-date snapshot before you set off.

Yes — the ULEZ covers all roads in Greater London, including this stretch of A4. The zone operates 24 hours a day, every day of the year. There is no Congestion Charge at this location. Most petrol vehicles registered after 2005 and diesel vehicles after 2015 are ULEZ-compliant and won't be charged. Non-compliant cars and vans pay £12.50 per day. TfL's vehicle checker at tfl.gov.uk can confirm whether your vehicle needs to pay.

TfL's JamCam network operates at over 95% uptime across its 900+ cameras. Individual cameras can go offline temporarily due to maintenance, power issues or road damage, but outages are usually resolved within hours. When this specific camera is unavailable, the page will show an error message — nearby cameras in the strip below the main feed often give a useful alternative view. TfL's Open Data API also occasionally experiences brief delays, which can result in images that are slightly older than the usual five-minute interval.

The A4 is served by a number of TfL bus routes. You can find the specific routes serving stops near A4 Chiswick Roundabout using TfL's Bus Stops and Journey Planner tools at tfl.gov.uk, or by checking the Citymapper app. Bus priority measures — including bus lanes and signal priority — on the A4 are designed to keep buses moving through congested periods, though they also affect traffic flow patterns visible in the JamCam above.