Major M4 Crash Causes Severe Traffic Disruption in West London
A significant collision on the M4 motorway in Greater London has led to the closure of two out of three westbound lanes, resulting in extensive traffic queues and substantial delays for commuters. The incident occurred on the evening of Thursday, February 12, 2026, between Junction 2 at Brentford and Ealing and Junction 3 at Feltham, a critical section of this major arterial route.
Emergency Services Respond to Late-Night Motorway Incident
Emergency services were promptly dispatched to the scene following the crash, with National Highways confirming their attendance to manage the situation and ensure safety. The closure has severely impacted the westbound flow, a direction heavily used by daily commuters and commercial traffic heading out of London.
National Highways East has issued a stark warning to motorists, advising them to allow extra journey time due to anticipated delays. In a statement posted on social media platform X, they highlighted that travel times are expected to be approximately 30 minutes longer than usual for those approaching the affected area.
Commuters Face Prolonged Delays on Key Route
The M4 serves as a vital corridor connecting London with western regions, and this disruption comes at a peak travel time, exacerbating congestion. With only one lane remaining open, traffic is backing up rapidly, creating a bottleneck that could affect surrounding roads and alternative routes.
Authorities are urging drivers to consider rerouting or delaying their journeys if possible. The incident underscores the ongoing challenges of maintaining smooth traffic flow on the UK's busiest motorways, particularly during evening rush hours when volume is high.
Ongoing Updates and Safety Measures
This remains an active incident, with National Highways committed to providing continuous updates as the situation evolves. Recovery and cleanup operations are underway, but the timeline for full lane reopening remains uncertain, pending further assessment by traffic management teams.
Motorists are reminded to exercise caution, adhere to speed limits, and follow diversion signs to minimize further risks. The closure highlights the broader issue of road safety on congested motorways, where accidents can swiftly lead to widespread travel chaos.



