About This Camera
Camera Location & Hazard Overview
The Chiswick Roundabout, where the A4 meets the A316, provides a critical link towards the M4, Central London and South West London via Chiswick Bridge, and this camera covers one of the most complex and heavily used interchanges anywhere on the JamCams network. Its reputation among London drivers precedes it, and for good reason given the sheer volume converging here from several directions simultaneously throughout most of the day.
Traffic Pattern & Congestion Trends
Congestion here is a near-constant feature of the working week, with the roundabout struggling to clear traffic during both peaks as vehicles cross between the A4, A316 and local Chiswick roads simultaneously, a combination that leaves genuinely free-flowing conditions relatively rare outside the very early morning hours before most commuters set off for the day ahead of them, before the roundabout fills up again for the morning rush — and Chiswick Roundabout's reputation among no win no fee car accident solicitors is well earned, given how often minor contact happens here.
Traffic Fines & Camera Enforcement
Average speed cameras and yellow box junction enforcement both operate here given the roundabout's complexity and its tendency to gridlock entirely if any single exit becomes blocked, even briefly, during the busiest parts of the day when volumes are at their highest.
Road Closures & Alternative Routes
Great Chertsey Road and the surrounding Chiswick back streets offer some relief for purely local journeys, but there's no simple way to avoid this junction for anyone genuinely needing to cross between the A4 and A316 corridors during a longer trip across this part of West London towards the river or beyond it towards Richmond and the wider south-west London suburbs.
Driver Safety & Local Tips
This roundabout is notorious even among experienced London drivers for its confusing lane markings — if you're unfamiliar with it, following signage carefully rather than relying on lane position from memory is genuinely the safer approach here for a first-time visitor.
ULEZ & Emissions
The London Borough of Hounslow operates entirely within the expanded Ultra Low Emission Zone (ULEZ), active 24/7. Non-compliant vehicles face a £12.50 daily charge. No Congestion Charge applies here, but be aware of Heathrow drop-off charges nearby. Check your vehicle compliance at tfl.gov.uk.
Parking near A4 Chiswick Roundabout, West London
There's no realistic on-street parking anywhere near Chiswick Roundabout itself given its scale and the sheer volume of traffic converging here — this genuinely isn't a spot to look for kerbside space. The surrounding Chiswick residential streets, a short walk away, carry one of Hounslow's more tightly controlled CPZs, with permit bays required during the day and limited visitor pay-and-display. Chiswick High Road has some public car parks useful for a longer stay if you're visiting the shops rather than parking near the roundabout itself. Hounslow's parking permit and CPZ information sits at hounslow.gov.uk/parking for anyone checking a specific Chiswick street before leaving a vehicle.
If on-street parking is hard to find, apps like JustPark and YourParkingSpace let you pre-book a private driveway or car park nearby — typically from around £2–£6 per hour or £10–£25 per day depending on how central the location is.
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