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.
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 A34 southbound between the A4185 and the junction with the M4 .
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. 
Congestion Location : The A34 northbound between the A415 and the junction with the A420 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 11:15 and 11:30 on 20/03/2026.
Delay : There are currently delays of 15 minutes against expected traffic.
Road Works Location : The A34 southbound between the A343 and the junction with the A303 .
Reason : Roadworks scheme.
Status : Currently Active.
Period : from 20:07 on 6/02/2026 to 06:00 on 28/03/2026.
Road Works Location : The A34 southbound.
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 23/03/2026 to 28/03/2026.
Lanes Closed : All lanes will be closed.
Road Works Location : The A34 northbound between the A4183 south of Kennington and the junction with the A420 .
Reason : Roadworks scheme.
Status : Currently Active.
Period : from 21:00 on 9/03/2026 to 06:00 on 26/03/2026.
Road Works Location : The A34 southbound between the A420 and the junction with the A423 north of Kennington.
Lane Closures : Lane one is closed.
Reason : Roadworks.
Status : Currently Active.
Lanes Closed : There is one of two lanes closed. 
Road Works Location : The M4 eastbound entry slip at junction J12 (Reading) .
Reason : Roadworks scheme.
Status : Currently Active.
Period : from 21:05 on 19/03/2026 to 06:00 on 28/03/2026.
Road Works Location : The M4 eastbound exit slip at junction J12 (Reading) .
Reason : Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 19/03/2026 to 21/03/2026.
Lanes Closed : All lanes will be closed.
Road Works Location : The M4 eastbound between junctions J13 (Newbury) and J12 (Reading) .
Lane Closures : Lanes 1 and 2 are closed.
Reason : Roadworks.
Status : Currently Active.
Period : expect disruption until 06:00 on 21/03/2026.
Lanes Closed : There are two of three lanes closed.
Road Works Location : The M40 southbound between junctions J9 (Bicester) and J8A (Thame) .
Lane Closures : Lane one will be closed.
Reason : Roadside drains works are planned.
Status : Pending.
Schedule : From 20:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : There will be one of three lanes closed.
Road Works Location : The M4 eastbound exit slip at junction J10 (Reading) .
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Horticultural works are planned.
Status : Pending.
Schedule : From 21:00 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 J11 (Basingstoke) and J10 (Reading) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Reason : Horticultural works are planned.
Status : Pending.
Schedule : From 21:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : There will be three of four lanes closed.
Road Works Location : The M4 westbound exit slip at junction J10 (Reading) .
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Horticultural works are planned.
Status : Pending.
Schedule : From 21:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : All lanes will be closed.
Road Works Location : The M4 westbound between junctions J8 (High Wycombe) and J10 (Reading) .
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Horticultural works are planned.
Status : Pending.
Schedule : From 21:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : There will be two of four lanes closed.
Road Works Location : The A34 northbound exit slip to the A343 .
Reason : Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : All lanes will be closed.
Road Works Location : The A34 northbound between the A303 and the junction with the A4 .
Lane Closures : Lane one will be closed.
Reason : Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : There will be one of two lanes closed.
Road Works Location : The A404M southbound exit slip at junction J9A .
Reason : Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : All lanes will be closed.
Road Works Location : The M40 northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Reason : Horticultural works are planned.
Status : Pending.
Schedule : From 22:15 on 20/03/2026 to 06:00 on 21/03/2026.
Lanes Closed : There will be two of three lanes closed.
Road Works Location : The M4 westbound between junctions J12 (Reading) and J13 (Newbury) .
Reason : Roadworks scheme.
Status : Currently Active.
Period : from 20:03 on 19/03/2026 to 06:00 on 21/03/2026.
Road Works Location : The M4 westbound exit slip at junction J13 (Newbury) .
Lane Closures : Lane one 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 : There will be one of two lanes closed.
Road Works Location : The A34 southbound between the A423 north of Kennington and the junction with the A4130 .
Reason : Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:30 on 25/03/2026 to 06:00 on 26/03/2026.
Road Works Location : The M40 southbound between junctions J8A (Thame) and J6 (Thame) .
Lane Closures : The hard shoulder is closed.
Reason : Barrier repairs.
Status : Currently Active.
Period : expect disruption until 15:30 on 20/03/2026.Current Incidents
CongestionLocation : The A34 northbound between the A415 and the junction with the A420 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 11:15 and 11:30 on 20/03/2026.
Delay : There are currently delays of 15 minutes against expected traffic.
Location:
A34, 1.32m of Oxford, Oxfordshire
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
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 A34 southbound between the A4185 and the junction with the M4 .
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 @ 08:06
Location:
A34, 2.93m of Didcot, Oxfordshire
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
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