A4 Great W Rd Syon Ln Live Traffic Disruption & Incident Alerts

A4 Great West Road Syon Lane has its own rhythm of busy and quiet periods, and this camera is the quickest way to check which one you're driving into. A quick look at the camera will tell you if a collision is behind any slowdown, rather than just normal traffic volume. It's a small habit that pays off on the days it matters.

A4A4 Great W Rd/Syon Ln — Live Traffic Camera Feed CHECKING
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Nearby Live Cameras in Hounslow

Possible Rush Hour

AM Peak

07:30 – 09:30

Weekdays

PM Peak

16:30 – 19:00

Weekdays

Weekend

11:00 – 15:00

Sat retail peaks

About This Camera

Camera Location & Hazard Overview

The Great West Road meets Syon Lane close to the historic Syon Park estate on the Hounslow side of the borough boundary, and this camera offers a useful reference point for traffic moving between Brentford, Isleworth and the wider A4 corridor. The junction sits at a genuinely interesting crossover between the area's industrial past along the Golden Mile and its more parkland, riverside character just a short distance away towards the Thames.

Traffic Pattern & Congestion Trends

Traffic builds during the morning as Syon Lane commuters and local Brentford traffic join the Great West Road, with the evening pattern seeing similarly heavy volumes disperse in the opposite direction as the working day comes to a close. Weekend patterns differ noticeably here compared with the rest of the week, particularly when Syon Park itself is hosting a larger event or exhibition nearby.

Traffic Fines & Camera Enforcement

The 40mph limit here is enforced continuously by average speed cameras, with ULEZ ANPR cameras also active given the road's position fully within the expanded zone that now covers all of Hounslow. Enforcement standards remain consistent along this stretch regardless of the time of day or day of the week. Weekend visitor traffic near Syon Park occasionally produces the sort of hesitant braking that leads to a rear-end shunt and a whiplash compensation claim.

Road Closures & Alternative Routes

Syon Lane offers access towards Isleworth if the Great West Road is heavily congested, though it narrows considerably away from the main junction and isn't really suited to sustained through-traffic. For a longer alternative avoiding this stretch entirely, the A315 provides a parallel route a little further south for drivers heading in the same general direction towards Central London during a longer cross-town journey, and a breakdown near the park entrance on a busy weekend is best resolved with a cheapest car recovery service rather than waiting roadside.

Driver Safety & Local Tips

Syon Park's gardens and historic house draw weekend visitor traffic that can add unexpected volume to this junction outside the usual weekday commuter pattern — worth checking before a Saturday or Sunday visit, particularly during the warmer months when the gardens are at their busiest with families and day-trippers.

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 Great W Rd/Syon Ln, Twickenham

Syon Lane and the surrounding streets carry a Hounslow CPZ typical of this part of the borough, with resident permit bays dominating during the day — Syon Park itself has its own visitor car park, which is genuinely the better option if you're heading there rather than parking on the surrounding residential streets. Check entry signage for exact CPZ hours, since Hounslow manages zones individually rather than following one borough-wide schedule. Single yellow lines near the Great West Road itself restrict daytime stopping. Hounslow's CPZ map and permit portal at hounslow.gov.uk/parking cover the exact boundary and hours for this specific stretch near Isleworth. Visitors to Syon Park whose cars won't start after a long day out are usually better off calling for the best breakdown recovery service rather than attempting a roadside fix.

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.

Parking links are affiliate partnerships. JamCams may earn a commission at no extra cost to you.

Journey Planning Tips

  • 1Check this JamCam before joining the A4 in London — knowing the queue length before you arrive lets you choose an alternative route
  • 2Peak congestion near A4 Great W Rd/Syon Ln is weekdays 07:30–09:30 and 16:30–19:00 — travelling outside these windows typically cuts journey times by 20–40%
  • 3All vehicles in this area must comply with the ULEZ — check your vehicle at tfl.gov.uk/ulez before driving. Non-compliant vehicles pay £12.50 per day even outside peak hours
  • 4View the JamCams map to see live conditions across the wider London road network and identify the clearest approach route
  • 5Check TfL Road Disruptions for live incidents in this area
  • 6Consider public transport if the JamCam shows heavy congestion

Frequently Asked Questions

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