About This Camera
Camera Location & Hazard Overview
Heathrow-bound traffic and the M4 corridor both funnel through the White Hart Roundabout, where the A312 meets the western end of the A40 near Yeading and Northolt — a major interchange for West London airport traffic. Taxi drivers doing regular airport runs treat this roundabout as their key timing checkpoint before committing to the final stretch towards Heathrow. Locals treat conditions here as a fair proxy for the wider area, not just this single point.
Traffic Pattern & Congestion Trends
Heavy airport-bound traffic mixes with local commuter flow at this roundabout, with the sharpest congestion in the early morning as travellers head for early Heathrow flights and again in the evening commuter peak. Bank holiday weekends bring an unusual dip here, since fewer business travellers are flying compared with a typical weekday. Regular users learn to read small visual cues on this camera long before an official delay is reported, and the merging airport traffic here is a fairly common setting for a non-fault accident claim among drivers rushing to catch a flight.
Traffic Fines & Camera Enforcement
ANPR cameras monitor the multiple approach roads to this large roundabout. Average speed enforcement continues along the A40 sections either side of the junction, reflecting how much airport-bound freight and taxi traffic passes through here daily. The wider Ultra Low Emission Zone charge also applies throughout this stretch, on top of any parking or loading penalty.
Road Closures & Alternative Routes
The A40 Target Roundabout further east provides an alternative if the White Hart Roundabout itself is gridlocked, though it adds distance for anyone specifically heading towards the M4 or Heathrow. Airport shuttle operators generally build in a buffer of at least fifteen minutes for this roundabout alone when quoting journey times to clients. It's worth having a second option in mind before you set off, rather than deciding only once you hit traffic.
Driver Safety & Local Tips
Early morning airport traffic makes this roundabout busier before 06:00 than you might expect — if you're catching an early flight, this camera is worth checking the night before to plan your departure time.
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 A312 / White Hart Roundabout, West London
White Hart Roundabout itself has no parking, sitting as a major A312/A40 interchange, so plan to park before reaching it if you're heading into Yeading or Northolt. The nearest practical options are the residential streets back towards Northolt town centre, under an Ealing Council CPZ typically enforced Monday to Saturday during the day, or Yeading's local shopping parades with limited pay-and-display. Single yellow lines restrict stopping during controlled hours only. If you're catching a flight from Heathrow via this route, park-and-ride or airport parking is a far better bet than street parking near this junction. Ealing's permit and PCN details: 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.
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