Overturned Vehicle Location : The M40 southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Reason : Accident involving an overturned vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 11:45 and 12:00 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 12:15 and 12:30 on 20/03/2026.
Lanes Closed : All lanes are closed.
Overturned Vehicle Location : The M40 southbound entry slip at junction J4 (High Wycombe) .
Reason : Accident involving an overturned vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 12:00 and 12:15 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 12:00 and 12:15 on 20/03/2026.
Lanes Closed : All lanes are closed.
Overturned Vehicle Location : The M40 southbound entry slip at junction J3 (Loudwater) .
Reason : Accident involving an overturned vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 12:00 and 12:15 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 12:00 and 12:15 on 20/03/2026.
Lanes Closed : All lanes are closed.
Accident Location : The M4 westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Reason : Road traffic collision.
Status : Cleared. 
Broken down vehicle Location : The M3 westbound between junctions J3 (Woking) and J4 (Guildford) .
Lane Closures : Lane one is closed.
Reason : Broken down vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 10:30 and 10:45 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 10:15 and 10:30 on 20/03/2026.
Lanes Closed : There is one of four lanes closed. 
Western Avenue (Eastbound) nea Western Avenue (Eastbound) near the junction with Alperton Lane - Collision - Lane one reopened. Traffic is flowing well for the time of day.
Swakeleys Roundabout - There i Swakeleys Roundabout - There is a broken down car on the eastbound on slip road to the A40. All lanes are open.
Cross Deep (All Directions) ju Cross Deep (All Directions) junction with Grotto Road. All closures have been removed - Traffic flows have returned to normal in the area
Leatherhead Road (Northbound). Leatherhead Road (Northbound). Traffic is moving well. Traffic is moving well.
Horn Lane (All Directions) at Horn Lane (All Directions) at the junction of Rectory Road - Three-way temporary signals in operation to facilitate works by BT. Traffic is flowing well in the area.
Lampton Road (Both Directions) Lampton Road (Both Directions) at the junction of Alexandra Road - Temporary signals in operation to facilitate resurfacing works. 
All lanes reopened. All lanes reopened. Traffic is moving well.
High Street (Both Directions) High Street (Both Directions) at the junction of Cambridge Road - 2-way temporary traffic signals in operation to facilitate new gas connection now removed. Traffic is moving well.
The Parkway (Northbound) at th The Parkway (Northbound) at the junction of North Hyde Road - Road is now fully open. Traffic is moving well.
Heston Road (All Directions) a Heston Road (All Directions) at the junction of Wheatlands - Temporary signals in operation to facilitate resurfacing works. Expect some delays while the restrictions are in place.
On Tolworth Broadway (Southbou On Tolworth Broadway (Southbound) at the junction with A3 Tolworth Roundabout, there is a broken down vehicle blocking lane two of three). Approach with caution. All lanes have reopened. Traffic is flowing well.
Burlington Road between High S Burlington Road between High Street and Malden Way (Kingston By Pass) - road is closed due to a fire. Traffic is flowing well.
Dover House Road (Both Directi Dover House Road (Both Directions) at the junction of Upper Richmond Road - There will be stop / go boards in operation due to works in the area. Works have now finished.
Kymberley Road (One Way System Kymberley Road (One Way System) between Headstone Road and College Road - Road closure to facilitate resurfacing works 
Forty Avenue (All Directions) Forty Avenue (All Directions) at the junction of Preston Road. Lane restrictions in place due to a collision. The road has reopened.
Western Avenue (Eastbound) nea Western Avenue (Eastbound) near the junction of Victoria Road lane one blocked by a broken down van. Vehicle has been recovered. Traffis is flowing well.
Gunnersbury Avenue (North Circ Gunnersbury Avenue (North Circular Road) (Southbound) at the junction of Power Road - Collision vehicles have now been cleared. Traffic flowing well in the area.
Congestion Location : The M4 westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 08:45 and 09:00 on 20/03/2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Earlier Reason : Caused by an earlier accident. 
Congestion Location : The A308M westbound between the junctions with the A308 and the M4 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 07:30 and 07:45 on 20/03/2026.
Delay : There are currently delays of 10 minutes against expected traffic. 
Congestion Location : The M40 southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 10:15 and 10:30 on 20/03/2026.
Delay : There are currently delays of 20 minutes against expected traffic. 
Congestion Location : The A30 eastbound at the junction with the A308 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 10:45 and 11:00 on 20/03/2026.
Road Works Location : The M4 eastbound entry slip at junction J6 (Slough) .
Reason : Roadworks scheme.
Status : Currently Active.
Period : from 20:43 on 17/03/2026 to 06:00 on 22/03/2026.
Road Works Location : The A3 southbound.
Lane Closures : Lane one is closed.
Reason : Emergency barrier repairs.
Status : Currently Active.
Period : expect disruption until 06:00 on 20/03/2026.
Lanes Closed : There is one of two lanes closed. 
Road Works Location : The M4 eastbound at junction J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : All lanes will be closed.
Road Works Location : The M4 eastbound between junctions J7 (Slough) and J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 are closed.
Reason : Roadworks.
Status : Currently Active.
Period : expect disruption until 06:00 on 21/03/2026.
Lanes Closed : There are three of four lanes closed.Current Incidents
Overturned VehicleLocation : The M40 southbound entry slip at junction J3 (Loudwater) .
Reason : Accident involving an overturned vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 12:00 and 12:15 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 12:00 and 12:15 on 20/03/2026.
Lanes Closed : All lanes are closed.
Location:
M40, 2.58m of Beaconsfield, Buckinghamshire
Overturned VehicleLocation : The M40 southbound entry slip at junction J4 (High Wycombe) .
Reason : Accident involving an overturned vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 12:00 and 12:15 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 12:00 and 12:15 on 20/03/2026.
Lanes Closed : All lanes are closed.
Location:
M40, 1.41m of High Wycombe, Buckinghamshire
Overturned VehicleLocation : The M40 southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Reason : Accident involving an overturned vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 11:45 and 12:00 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 12:15 and 12:30 on 20/03/2026.
Lanes Closed : All lanes are closed.
Location:
M40, 1.88m of High Wycombe, Buckinghamshire
Broken down vehicleLocation : The M3 westbound between junctions J3 (Woking) and J4 (Guildford) .
Lane Closures : Lane one is closed.
Reason : Broken down vehicle.
Status : Currently Active.
Time To Clear : The event is expected to clear between 10:30 and 10:45 on 20/03/2026.
Return To Normal : Normal traffic conditions are expected between 10:15 and 10:30 on 20/03/2026.
Lanes Closed : There is one of four lanes closed. CLEARED @ 09:54
Location:
M3, 3.73m of Bagshot, Surrey
CongestionLocation : The M4 westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 08:45 and 09:00 on 20/03/2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Earlier Reason : Caused by an earlier accident. CLEARED @ 08:51
Location:
M4, 1.62m of Slough, Slough
CongestionLocation : The A308M westbound between the junctions with the A308 and the M4 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 07:30 and 07:45 on 20/03/2026.
Delay : There are currently delays of 10 minutes against expected traffic. CLEARED @ 07:30
Location:
A308(M), 0.85m of Bray, Windsor and Maidenhead
CongestionLocation : The M40 northbound exit slip at junction J4 (High Wycombe) .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 08:15 and 08:30 on 20/03/2026.
Delay : There are currently delays of 10 minutes against expected traffic. CLEARED @ 08:15
Location:
M40, 1.46m of High Wycombe, Buckinghamshire
CongestionLocation : The A404 northbound at the junction with the M40 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 09:30 and 09:45 on 20/03/2026.
Delay : There are currently delays of 10 minutes against expected traffic. CLEARED @ 09:36
Location:
A404, 1.57m of High Wycombe, Buckinghamshire
CongestionLocation : The A404 northbound at the junction with the M40 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 09:45 and 10:00 on 20/03/2026.
Delay : There are currently delays of 10 minutes against expected traffic. CLEARED @ 09:54
Location:
A404, 1.57m of High Wycombe, Buckinghamshire
CongestionLocation : The M40 southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 10:15 and 10:30 on 20/03/2026.
Delay : There are currently delays of 20 minutes against expected traffic. CLEARED @ 10:21
Location:
M40, 1.31m of Beaconsfield, Buckinghamshire
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