Latest Live M40 Traffic News

Live M40 traffic news and updates for M40 junctions, plus real time travel reports on delays, accidents, roadworks and snow.

The M40 is a vital link between the Midlands, Oxford and London. It is an alternative to the busy M1 motorway the A1. Any road that links directly to the capital is vastly important in terms and business and economic value as well as population movement and the M40 links London to the UK’s second city Birmingham.

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Latest M25 traffic updates

Like most other UK motorways, the M40 falls victim to the rush hour commute traffic jams but unusually it has relatively little traffic or holdups meaning a smoother journey for drivers. Roadworks and accidents can cause traffic jams and delays so its always best to be prepared if you are travelling on any part of the M40. On this page we’re bringing you the latest live M40 traffic news to help you dodge any M40 delays, with travel alerts, live updates and an incident map for both northbound and southbound lanes.

Scroll down to find real-time alerts from the M40 via our specially built Twitter feed, which collates vital updates as they happen from the Highways Agency, official police accounts and other traffic news feeds. We’ve also got a live map showing exactly where the delays are, plus a useful list of all the motorway’s junctions...

About the M40 Motorway

The M40 was recently voted motorists’ second favourite motorway in the UK due to its reasonably light traffic, few to no roadworks and plenty of petrol/service stations.

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• What are smart Motorways

If you want to try a bit of car spotting then the M40 is a good place to start. JLR, Aston Martin and Mini all have plants a stone throw away from the M40 with JLR and Aston being located in Gaydon while Mini has its factory in Oxford. Also, the British Motor museum can be found along the M40 too.

Live M40 Traffic updates

Live M40 Traffic Map

Traffic jams can crop up at any time on the M40 motorway caused by accidents, weather conditions, roadworks or volume of traffic, but fortunately you can keep one step ahead of the delays with our live and continuously updated M40 traffic map.

The map below shows live updates on the current problem areas of the M40 for roadworks, accidents or general congestion causing delays on the road...  

M40 Weather Report

Details of the latest weather warnings in the M40 area from the Met Office...

Met Office Weather Warning

The History of the M40 Motorway

The first stretch of the M40 was constructed between 1967 and 1974 and connected London to Oxford before an extension to Birmingham was finished in 1989.  At 89 miles long it may not be as long as most other motorways in Britain but it provides a vital link between London and the Midlands and offers an alternate route to the M1.

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The building of the M40 was not without difficulty though as a plan to build through Otmoor, an area of wetland known for its wildlife, was highly criticised by the public. In response to the plans, Friends of the Erath purchased a plot of land on the moor that forced the M40 route to be redirected to avoid Otmoor completely.

Originally no services were built on the M40 with just a single parking area complete with some temporary toilets for motorists to us. However these were quickly removed and the first service station, now Cherwell Services, was built in its place.

There are now four service stations on the M40. The Beaconsfield Services was the first motorway services in the UK to introduce a Wetherspoon bar and restaurant, a decision, which proved highly controversial.

M40 Junctions 

All of the M40 junctions on the southbound and northbound carriageways are detailed below...

Northbound ExitsJunctionsSouthbound Exits
Start of Motorway,Road formed from main carriageways of A40 from London J1End of Motorway, Road continues as A40 to London Slough A412Uxbridge A4020Non motorway traffic
Watford & (M1) Stansted Airport (M11)Heathrow Airport (M4) Gatwick Airport (M23) M25J1aWatford (M1) Heathrow Airport (M4)(M3,M23 ,M11) M25
Beaconsfield, Amersham, Slough A355,Beaconsfield Services ExtraJ2servicesBeaconsfield, Amersham, Slough A355,Beaconsfield Services Extra
Loudwater andHigh Wycombe (East) A40J3No Access
High Wycombe, Marlow A404 (M4)J4High Wycombe, Marlow,Maidenhead A404 (M4)
Stokenchurch A40J5High Wycombe (West),Stokenchurch A40
Thame, Watlington,Princes RisboroughJ6WatlingtonPrinces Risborough B44009
Thame, Wallingford, A329J7No Access
Oxford, Cheltenham A40J8No Access
Thame, Aylesbury A418Oxford (A40),Oxford Services Welcome BreakJ8aServicesThame, Aylesbury A418Oxford (A40),Oxford Services Welcome Break
Bicester A41Oxford, Newbury A34, Blenheim PalaceJ9Bicester, Aylesbury A418Oxford, Newbury A34,Blenheim Palace
Northampton A43 (M1)B430,Cherwell Valley Services Moto, SilverstoneJ10ServicesNorthampton A43 (M1)B430,Cherwell Valley Services Moto, Silverstone
Banbury A422Chipping Norton A361, Paulerspury, TowcesterJ11Banbury A422Davetry A361, Paulerspury, Towcester
Gaydon B4451J12Gaydon B4451
Warwrick Services Welcome BreakServicesWarwick Services Welcome Break
Leamington, Warwick,Warwick Castle A452B4100J13No Access
No AccessJ14Leamington A452
Warwick A429Stratford, Coventry A46 Leicester (M69)J15Warwick, Warwick Castle A429Stratford, Coventry A46 Leicester (M69)
No AccessJ16Henley A3400
End of MotorwayRoad continues as M42 The South West, Birmingham (South & West)Redditch & M5The North, Birmingham (North, East) (M1, M6)J17Start of motorwayMotorway is formed by two sliproads from the M42

Planning on heading to the North West or the Midlands? Then check out our M6 Updates page too…


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