M40 Traffic

M40 00:44am

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Traffic incidents

The following traffic incidents and congestion for M40 have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:

BROKEN DOWN VEHICLE
Location: The M40 northbound entry slip at junction J8A (Thame) .
Lane closures: The hard shoulder and lane 1 are closed.
Reason: Broken down vehicle.
Status: Currently Active.
Time to clear: The event is expected to clear between 21:45 and 22:00 on 11 Dec 2025.
Return to normal: Normal traffic conditions are expected between 21:45 and 22:00 on 11 Dec 2025.
Lanes closed: There is one of two lanes closed.
Nearest town: 6.51m from Oxford. CLEARED @ 21:17
CONGESTION
Location: The M40 southbound exit slip at junction J5 (High Wycombe) .
Reason: Congestion.
Status: Currently Active.
Return to normal: Normal traffic conditions are expected between 22:30 and 22:45 on 11 Dec 2025.
Delay: There are currently delays of 10 minutes against expected traffic.
Nearest town: 1.64m from Chinnor. CLEARED @ 22:29
ROAD WORKS
Location: The M40 southbound between junctions J16 (Henley)and J15 (Warwick) .
Lane closures: Lane three will be closed.
Reason: Emergency gantry construction is planned.
Status: Pending.
ScheduleFrom 22:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes closed: There will be one of three lanes closed.
Nearest town: 5.01m from Warwick.
ROAD WORKS
Location: The M40 northbound between junctions J15 (Warwick)and J16 (Henley) .
Lane closures: Lane three will be closed.
Reason: Emergency gantry construction is planned.
Status: Pending.
ScheduleFrom 22:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes closed: There will be one of three lanes closed.
Nearest town: 3.28m from Warwick.


There are no current incidents in this location.

M40 Roadworks

The following roadworks have been reported by various highways agencies and official transport sources.Click on a roadworks item to view more details on the traffic map.

ROAD WORKS
Location: The M40 southbound between junctions J4 (High Wycombe)and J2 (Beaconsfield) .
Lane closures: Lanes 3 and 4 will be closed.
Reason: Emergency barrier repairs are planned.
Status: Pending.
Schedule: From 22:15 on 12 Dec 2025 to 06:00 on 13 Dec 2025.
Lanes Closed: There will be two of four lanes closed.
Nearest town: 1.99m from Beaconsfield.
ROAD WORKS
Location: The M40 southbound between junctions J5 (High Wycombe)and J4 (High Wycombe) .
Reason: Roadworks.
Status: Currently Active.
Period: from 20:33 on 11 Dec 2025 to 05:00 on 12 Dec 2025.
Lanes Closed: All lanes are closed.
Nearest town: 1.73m from Chinnor.
ROAD WORKS
Location: The M40 northbound between junctions J2 (Beaconsfield)and J4 (High Wycombe) .
Lane closures: Lane four is closed.
Reason: Planned Roadworks.
Status: Currently Active.
Period: expect disruption until 05:30 on 12 Dec 2025.
Lanes Closed: There is one of four lanes closed.
Nearest town: 0.59m from Beaconsfield.
ROAD WORKS
Location: The M40 northbound between junctions J8A (Thame)and J9 (Bicester) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Horticultural works are planned.
Status: Pending.
Schedule: From 22:15 on 15 Dec 2025 to 06:00 on 16 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 6.56m from Oxford.
ROAD WORKS
Location: The M40 southbound between junctions J9 (Bicester)and J8A (Thame) .
Lane closures: Lanes 2 and 3 will be closed.
Reason: Emergency barrier repairs are planned.
Status: Pending.
Schedule: From 22:15 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 7.55m from Bicester.
ROAD WORKS
Location: The M40 northbound between junctions J8A (Thame)and J9 (Bicester) .
Lane closures: Lanes 2 and 3 will be closed.
Reason: Emergency barrier repairs are planned.
Status: Pending.
Schedule: From 22:15 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 6.47m from Oxford.
ROAD WORKS
Location: The M40 southbound between junctions J5 (High Wycombe)and J4 (High Wycombe) .
Lane closures: Lanes 2 and 3 will be closed.
Reason: Emergency barrier repairs are planned.
Status: Pending.
Schedule: From 22:15 on 17 Dec 2025 to 06:00 on 18 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 2.11m from High Wycombe.
ROAD WORKS
Location: The M40 southbound entry slip at junction J3 (Loudwater) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 22:15 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 2.6m from Beaconsfield.
ROAD WORKS
Location: The M40 southbound between junctions J4 (High Wycombe)and J2 (Beaconsfield) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 22:15 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be one of four lanes closed.
Nearest town: 2.35m from Beaconsfield.
ROAD WORKS
Location: The M40 southbound between junctions J4 (High Wycombe)and J3 (Loudwater) .
Lane closures: Lane one will be closed.
Reason: Roadside drains works are planned.
Status: Pending.
Schedule: From 22:15 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 2.56m from Bourne End.
ROAD WORKS
Location: The M40 southbound between junctions J5 (High Wycombe)and J4 (High Wycombe) .
Lane closures: Lanes 2 and 3 will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 21:00 on 18 Dec 2025 to 06:00 on 19 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 1.95m from High Wycombe.
ROAD WORKS
Location: The M40 southbound between junctions J2 (Beaconsfield)and J1A (Watford) .
Reason: Horticultural works are planned.
Status: Pending.
Schedule: From 19:00 on 18 Dec 2025 to 23:59 on 20 Dec 2025.
Nearest town: 2.11m from Chalfont Saint Peter.

M40

The M40 motorway is a major route between Birmingham and London, connecting the two major cities of the Midlands and the South East. It was built in the 1970s to relieve traffic congestion along the A40, and it has been a major part of the UK motorway network ever since.

In terms of safety, the M40 motorway has seen an overall reduction in the number of accidents in recent years, which is due in part to the installation of average speed cameras along certain stretches of road. The motorway has been the recipient of many safety awards and is regularly cited as one of the safest motorways in the UK. This is evidenced by Department for Transport figures showing that in 2018, there were 7 fatal crashes, 27 serious crashes and 262 slight crashes reported on the entire M40 stretch.

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Please remember that it is against the law to use your mobile phone, tablet or any electronic device without a hands-free kit whilst driving.If you're caught by the police using any device that can send or receive data whilst driving or riding a motorcyle you'll get an automatic fixed penalty notice, 6 points on your licence and a fine of £200.A court could also disqualify you from driving.

Elsewhere on the web:

National Highways TrafficNational Highways England

Official source of traffic updates.

Transport for LondonTransport for London (TFL)

Transport for London's (TfL) portal for transportation in London.

Traffic WalesTraffic Wales

The Welsh government's traffic information service for Wales.

Traffic ScotlandTraffic Scotland

Live traffic conditions and news for Scotland's road network.

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Location: northbound entry slip at junction J8A (Thame) .

Lane Closures : The hard shoulder and lane 1 are closed.

Due to: Broken down vehicle.



Time To Clear : The event is expected to clear between 21:45 and 22:00 on 11 December 2025.

Normal traffic conditions are expected between 21:45 and 22:00 on 11 December 2025.

Lanes Closed : There is one of two lanes closed.
Nearest town: 6.51m from Oxford.

51.74--1.1

Location: southbound exit slip at junction J5 (High Wycombe) .

Due to: Congestion.



Normal traffic conditions are expected between 22:30 and 22:45 on 11 December 2025.

Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 1.64m from Chinnor.

51.66--0.91

Location: southbound between junctions J4 (High Wycombe)and J2 (Beaconsfield) .

Lane Closures : Lanes 3 and 4 will be closed.

Due to: Emergency barrier repairs are planned.

Status : Pending.

Schedule : From 22:15 on 12 December 2025 to 06:00 on 13 December 2025.

Lanes Closed : There will be two of four lanes closed.
Nearest town: 1.99m from Beaconsfield.

51.6--0.68

Location: southbound between junctions J5 (High Wycombe)and J4 (High Wycombe) .

Due to: Roadworks.



Period : from 20:33 on 11 December 2025 to 05:00 on 12 December 2025.

Lanes Closed : All lanes are closed.
Nearest town: 1.73m from Chinnor.

51.66--0.91

Location: northbound between junctions J2 (Beaconsfield)and J4 (High Wycombe) .

Lane Closures : Lane four is closed.

Due to: Planned Roadworks.



Period : expect disruption until 05:30 on 12 December 2025.

Lanes Closed : There is one of four lanes closed.
Nearest town: 0.59m from Beaconsfield.

51.59--0.62

Location: northbound between junctions J8A (Thame)and J9 (Bicester) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Horticultural works are planned.

Status : Pending.

Schedule : From 22:15 on 15 December 2025 to 06:00 on 16 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 6.56m from Oxford.

51.77--1.1

Location: southbound between junctions J9 (Bicester)and J8A (Thame) .

Lane Closures : Lanes 2 and 3 will be closed.

Due to: Emergency barrier repairs are planned.

Status : Pending.

Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 7.55m from Bicester.

51.8--1.09

Location: northbound between junctions J8A (Thame)and J9 (Bicester) .

Lane Closures : Lanes 2 and 3 will be closed.

Due to: Emergency barrier repairs are planned.

Status : Pending.

Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 6.47m from Oxford.

51.77--1.1

Location: southbound between junctions J5 (High Wycombe)and J4 (High Wycombe) .

Lane Closures : Lanes 2 and 3 will be closed.

Due to: Emergency barrier repairs are planned.

Status : Pending.

Schedule : From 22:15 on 17 December 2025 to 06:00 on 18 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 2.11m from High Wycombe.

51.62--0.81

Location: southbound entry slip at junction J3 (Loudwater) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 2.6m from Beaconsfield.

51.61--0.69

Location: southbound between junctions J4 (High Wycombe)and J2 (Beaconsfield) .

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of four lanes closed.
Nearest town: 2.35m from Beaconsfield.

51.6--0.69

Location: southbound between junctions J4 (High Wycombe)and J3 (Loudwater) .

Lane Closures : Lane one will be closed.

Due to: Roadside drains works are planned.

Status : Pending.

Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 2.56m from Bourne End.

51.6--0.69

Location: southbound between junctions J16 (Henley)and J15 (Warwick) .

Lane Closures : Lane three will be closed.

Due to: Emergency gantry construction is planned.

Status : Pending.

Schedule : From 22:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 5.01m from Warwick.

52.3--1.7

Location: northbound between junctions J15 (Warwick)and J16 (Henley) .

Lane Closures : Lane three will be closed.

Due to: Emergency gantry construction is planned.

Status : Pending.

Schedule : From 22:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 3.28m from Warwick.

52.28--1.66

Location: southbound between junctions J5 (High Wycombe)and J4 (High Wycombe) .

Lane Closures : Lanes 2 and 3 will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 1.95m from High Wycombe.

51.61--0.8

Location: southbound between junctions J2 (Beaconsfield)and J1A (Watford) .

Due to: Horticultural works are planned.

Status : Pending.

Schedule : From 19:00 on 18 December 2025 to 23:59 on 20 December 2025.
Nearest town: 2.11m from Chalfont Saint Peter.

51.58--0.58