M40 Southbound, Jct 2 to Jct 1a lane 3 and 4 closure

Cleared

Start time: Thu, Jul 9, 2026 10:35 PM
Expected end: Fri, Jul 10, 2026 11:00 AM
Duration: 10 hours 55 minutes 1 second
Road: M40 – M40 Southbound Within J1A Before M25 J16 Clockwise Access
Category: Road Maintenance
Direction: Southbound
Carriageway: Dual Carriageway
Lanes affected: 2 of 2 lanes affected, 2 of 3 lanes affected
Reason: Roadworks

Live incident

Active roadworks

Planned

Cleared

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First published: Fri, Jul 10, 2026 5:00 AM
Last updated: Fri, Jul 10, 2026 8:59 AM
Cleared: Fri, Jul 10, 2026 9:30 AM

Latest update: M40 Southbound, Jct 2 to Jct 1a lane 3 and 4 closure

Coordinates: 51.563668, -0.550705
Latitude span: 51.561885 – 51.564968
Longitude span: -0.555550 – -0.539986
Bounding box centre: 51.563427, -0.547768
Location descriptions: M40 southbound within J1A before M25 J16 clockwise access

M40 southbound between J2 and J1A

Feed validity status: Active
Overall feed start: Thu, Jul 9, 2026 10:35 PM
Overall feed end: Fri, Jul 10, 2026 11:00 AM
Feed window length: 12 hours 25 minutes
Probability code (raw): certain
Compliance option (raw): mandatory
Source identification (raw): roadworks

Management type value: other
Contra-flow flag (raw): false
Width restriction flag (raw): false
Height restriction flag (raw): false
Weight restriction flag (raw): false

Segment 1

4 coordinate pairs

Description: M40 southbound within J1A before M25 J16 clockwise access
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End2
Linear Element Road: M40
Linear Element Model: The Network Model
Linear Element Id: {9A6E26FB-2BB4-43B7-9B45-16D32218A81A}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 322 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.562454 -0.544542
51.562434 -0.544326
51.562016 -0.541022
51.561885 -0.539986

Segment 2

7 coordinate pairs

Description: M40 southbound between J2 and J1A
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 3 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M40
Linear Element Model: The Network Model
Linear Element Id: {42F86B72-46FE-4C21-BF57-4E712F3D3DC5}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 104 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.564693 -0.554912
51.564647 -0.554804
51.564633 -0.554771
51.56452 -0.554504
51.564231 -0.55369
51.564231 -0.553689
51.564212 -0.553619

Segment 3

7 coordinate pairs

Description: M40 southbound between J2 and J1A
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 3 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M40
Linear Element Model: The Network Model
Linear Element Id: {71581B09-0D3E-4126-B363-E8EC58A6D072}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 441 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.563393 -0.550723
51.563175 -0.549812
51.563026 -0.549013
51.56287 -0.548005
51.562625 -0.545965
51.562577 -0.545563
51.562454 -0.544542

Segment 4

4 coordinate pairs

Description: M40 southbound between J2 and J1A
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 3 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start2 End1
Linear Element Road: M40
Linear Element Model: The Network Model
Linear Element Id: {C9066274-5339-4B40-8900-31C13F0B864A}
Linear Element Type: B Carriageway
From Distance: 1,636 m
To Distance: 1,690 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.564968 -0.55555
51.564844 -0.555272
51.564728 -0.554996
51.564693 -0.554912

Segment 5

6 coordinate pairs

Description: M40 southbound between J2 and J1A
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 3 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M40
Linear Element Model: The Network Model
Linear Element Id: {154415EE-BAAE-4C98-8EC4-92AA137F3C70}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 220 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.564212 -0.553619
51.564184 -0.553533
51.564044 -0.553134
51.563951 -0.552848
51.563617 -0.551671
51.563393 -0.550723

Geometry type: MultiLineString
Geometry points: 28
First coordinate pair: -0.544542, 51.562454
Road section segments: 1
Road section points: 28

View geometry JSON

{
    "type": "MultiLineString",
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            ],
            [
                -0.539986,
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            ],
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            ],
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            ],
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            ],
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            ],
            [
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            ],
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            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Roadworks
Compliance: Mandatory
Probability: Certain
Validity status: Active
Road management: Other