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Early Tuesday morning, signal failures and a bus crash in Northolt caused significant travel disruptions in London. Delays on the Metropolitan and Bakerloo lines were severe, while minor issues affected other lines such as the Central and DLR due to track faults and train cancellations. The A40 Western Avenue was partially blocked with queues stretching towards Swakeleys Roundabout and beyond, causing traffic congestion for commuters heading into central London.
Written by the local model on 2026-09-15,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
On Tuesday morning, Northolt experienced significant disruptions when a double-decker bus crashed off the A40 Western Avenue, causing major traffic issues and long queues that reached towards Swakeleys Roundabout and Hayes. The incident began disrupting travel around 4:45 AM, leading to delays on multiple London transport lines. Specifically, severe delays were reported on the Metropolitan line between Harrow-on-the-Hill and Uxbridge due to a signal failure at Harrow-on-the-Hill. Additionally, minor delays affected the Central line between Loughton and Epping because of a track fault at Epping, while the Lioness line faced delays after an earlier signal failure at Stonebridge Park. These disruptions continued into rush hour, impacting commuters traveling through London.
Written for “London Transport Disruption” on 2026-09-15,
grounded in this article and the 0 other(s) covering the same event.
Why this leaning score
This article does not take a side on a contested political
question, so it has no leaning score. That is an
answer rather than a gap: a match report or a rescue can be warmly
or critically written without being left or right, and scoring it
anyway is how approval of a subject gets recorded as a political
position.
No political leaning scored for article 9779 · logged 2026-09-15
The incident happened early on Tuesday morning in Northolt.
asserted
incident → happen → Northolt
At 12.20pm, traffic monitor Inrix reported long delays and one lane closed due on Western Avenue heading into central London after A312 Church Road.
asserted
lane → report → Road
Live updates
Double-decker bus crash causing tailbacks in west London
A bus crash in Northolt has caused major issues for drivers on the A40 this morning.
asserted
crash → cause → A40
Video footage posted on social media appears to show a TfL London bus that has left the road and come to rest in shrubbery beside the A-road.
asserted
that → post → road
The A40 Western Avenue remains partially blocked
Queues reached towards Swakeleys Roundabout, Hillingdon Circus, Hayes and Northolt Park.
Disruption began at around 4.45am, according to reports.
uncertain
Disruption → block → reports
Minor delays on the Central line
There are minor delays on the Central line between Loughton and Epping while engineers fix a track fault at Epping.
asserted
engineers → be → Epping
Minor delays on the Lioness line
Minor delays on the Lioness line now due to an earlier signal failure at Stonebridge Park.
Piccadilly line is part-suspended
There is currently no service between Wood Green and Cockfosters due to a signal failure at Turnpike Lane.
asserted
line → suspend → Lane
Minor delays on the DLR line
There are currently minor delays on the DLR line between Bank and Canning Town while engineers work to fix a faulty train at Poplar.
asserted
engineers → be → Poplar
Severe delays on the Lioness and Bakerloo lines
Severe delays are affecting the Bakerloo and Lioness lines following an earlier signal failure at Stonebridge Park.
asserted
delays → affect → Park
Services were previously suspended in part and then across the lines, but the disruption has since been reduced.
asserted
disruption → suspend → lines
Minor delays impacting the Metropolitan line
Minor delays on the Metropolitan line between Moor Park and Watford due to train cancellations.
Good service on the rest of the line.
Lioness line suspension continues into rush hour
As we enter rush hour now, the Lioness line is still suspended.
asserted
line → impact → hour
Passengers are advised to seek alternative routes.
asserted
Passengers → advise → routes
Minor delays cleared
Minor delays to the Piccadilly, Circle and Hammersmith & City line have now cleared.
asserted
Piccadilly → clear → ?
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