Track A40 Greenford Flyover Car Accidents & Heavy Congestion

A40 Greenford Flyover carries a mix of local and through traffic, which is part of why delays here can escalate quickly. Checking here first can save a wasted detour — you'll see straight away if a build-up of traffic is actually the problem.

A40A40/Greenford Flyover — Live Traffic Camera Feed CHECKING
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Nearby Live Cameras in Ealing

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

Western Avenue crosses clean over Greenford Road at this flyover, a significant interchange serving traffic moving between the A40 corridor and Greenford, Southall and Northolt. Lorries serving the industrial units around Greenford add a steady undercurrent of heavy traffic that's easy to miss from the flyover deck itself. Even small changes in traffic here tend to ripple outward to neighbouring junctions.

Traffic Pattern & Congestion Trends

The flyover itself generally flows well, but the slip roads connecting to Greenford Road below back up during peak hours as local traffic merges with the dual carriageway flow, particularly in the evening when Greenford Road traffic is heaviest. Friday afternoons see an earlier build-up here than most weekdays, as weekend delivery schedules overlap with the standard commuter flow. Conditions can shift quickly here, so a clear camera feed is only ever a snapshot rather than a guarantee, and a lorry misjudging the flyover merge is an occasional but genuine cause of a car crash claim on this stretch.

Traffic Fines & Camera Enforcement

Ongoing average speed monitoring covers this stretch, cover the flyover and its approaches, with ANPR at the slip road merges. The volume of traffic changing between the A40 and Greenford Road here makes this a closely monitored point on the corridor.

Road Closures & Alternative Routes

Greenford Road itself remains the main alternative for local journeys not needing the A40 directly, though it's typically slower than the flyover during off-peak hours. Regular Greenford commuters generally learn to use the flyover slip roads early in the peak, before the evening rush properly sets in below on Greenford Road. Local drivers generally have a preferred back-up route memorised for exactly this kind of situation.

Driver Safety & Local Tips

If you're heading for Greenford or Southall rather than staying on the A40, use the flyover slip roads early — they can back up quickly once the evening peak properly sets in.

ULEZ & Emissions

Ealing has sat inside the expanded Ultra Low Emission Zone since it went London-wide in August 2023, meaning non-compliant vehicles pay £12.50 a day anywhere in the borough, including the whole of the A40 and Uxbridge Road corridors. Check compliance for your specific vehicle at tfl.gov.uk/ulez before travelling.

Parking near A40/Greenford Flyover, West London

Greenford Flyover itself has no parking, but Greenford town centre nearby offers the Greenford Broadway car park along with pay-and-display bays on the surrounding high street, both useful if you're shopping or catching a train from Greenford station. The Ealing Council CPZ covers residential streets near the flyover, typically Monday to Saturday daytime. Single yellow lines restrict stopping only during controlled hours. Weekend parking is generally easier in Greenford than on a weekday when commuter traffic competes for the same limited station-adjacent spaces. Full permit information, current maps and PCN appeals: ealing.gov.uk/parking.

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 A40 in London — knowing the queue length before you arrive lets you choose an alternative route
  • 2Peak congestion near A40/Greenford Flyover 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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