About This Camera
Camera Location & Hazard Overview
This camera covers the A406 as it dips beneath Abbey Road in Stonebridge, where the North Circular runs as a purpose-built six-lane dual carriageway past the old West Coast Main Line arches — a short but awkward underpass where tighter sightlines mean minor incidents can cause a genuine backup that wouldn't register elsewhere on this road.
Traffic Pattern & Congestion Trends
Morning traffic builds from around 07:00 as Harlesden and Stonebridge commuters merge with through-traffic heading toward Staples Corner and the M1, peaking 07:45–09:15. The underpass narrows slightly on approach, so even normal peak volumes create noticeably slower running than on the wider stretches nearby. Evening traffic from 16:30 mirrors this heading the other way.
Traffic Fines & Camera Enforcement
Average speed enforcement covers this section of the North Circular, and no stopping is permitted through the underpass at any time — there's nowhere safe to pull in even briefly. ULEZ applies across all of Brent 24 hours a day; check tfl.gov.uk/ulez if unsure about your vehicle's compliance before driving through.
Road Closures & Alternative Routes
If the underpass is backed up, Hillside or Abbey Road offer a rough parallel route through Stonebridge, though residential and slower per mile. For a genuine hold-up here, most regular users wait it out rather than divert onto local streets not built for through-traffic volumes. The tighter sightlines through this underpass mean rear-end shunts are common enough that a car accident claim here is rarely contested on fault, since the vehicle behind is almost always deemed responsible.
Driver Safety & Local Tips
Watch for the width change on the approach — drivers who leave lane changes late through the dip are the most common cause of minor snarl-ups on this feed. It clears fast once past the pinch point, so a queue here often looks worse on camera than it feels once you're moving.
ULEZ & Emissions
The London Borough of Brent operates entirely within the Ultra Low Emission Zone (ULEZ), which is active 24/7, every day of the year. Non-compliant vehicles (pre-Euro 6 diesel / pre-Euro 4 petrol) face a £12.50 daily charge. No Congestion Charge applies in this borough. Check your vehicle compliance at tfl.gov.uk/ulez.
Parking near A406 Abbey Road Underpass, Ealing
This stretch of the North Circular through Stonebridge has no roadside parking at all — it's a fast dual carriageway underpass with nowhere safe to stop. For genuine parking, the residential streets around Stonebridge and Harlesden a short distance away fall within Brent's CPZ system, where a permit is needed Monday to Saturday during operational hours (check exact times on street signage, as they vary by zone). Brent charges £130 or £110 for higher-band PCNs depending on the zone, with a 50% discount if paid within 14 days. Visitor sessions are bought online via RingGo rather than a physical scratch card. Full details: brent.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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