M40 Southbound Jct 1a to Jct 1 carriageway closure

Planned

Start time: Sun, Apr 12, 2026 10:00 PM
Expected end: Mon, Apr 13, 2026 5:00 AM
Duration: 7 hours
Road: M40 – M40 Southbound Between J1A And J1
Category: Road Maintenance
Direction: Southbound
Carriageway: Dual Carriageway
Reason: Roadworks

Active

Planned

Cleared

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First published: Thu, Mar 19, 2026 4:42 PM
Last updated: Mon, Apr 13, 2026 4:32 AM
Cleared: Mon, Apr 13, 2026 5:00 AM

Latest update: M40 Southbound Jct 1a to Jct 1 carriageway closure

Coordinates: 51.561777, -0.507516
Latitude span: 51.561687 – 51.561825
Longitude span: -0.509392 – -0.505418
Bounding box centre: 51.561756, -0.507405
Location descriptions: M40 southbound between J1A and J1

M40 southbound within J1

Feed validity status: Planned
Overall feed start: Sun, Apr 12, 2026 10:00 PM
Overall feed end: Mon, Apr 13, 2026 5:00 AM
Feed window length: 7 hours
Probability code (raw): probable
Compliance option (raw): mandatory
Source identification (raw): roadworks

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

Segment 1

3 coordinate pairs

Description: M40 southbound between J1A and J1
Carriageway: Dual Carriageway
Lanes Restricted: 4 lanes restricted
Operational Lanes: 0 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: {7C2E40CE-719F-4877-A0C2-3168F9EF75FB}
Linear Element Type: B Carriageway
From Distance: 520 m
To Distance: 664 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.561687 -0.509392
51.561697 -0.509278
51.561807 -0.507326

Segment 2

4 coordinate pairs

Description: M40 southbound within J1
Carriageway: Dual Carriageway
Lanes Restricted: 4 lanes restricted
Operational Lanes: 0 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: {97B0476B-791D-4AF0-9936-2D770C544E72}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 132 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.561807 -0.507326
51.561814 -0.507167
51.561799 -0.506706
51.561825 -0.505418

Geometry type: MultiLineString
Geometry points: 7
First coordinate pair: -0.509392, 51.561687
Road section segments: 1
Road section points: 7

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.509392,
                51.561687
            ],
            [
                -0.509278,
                51.561697
            ],
            [
                -0.507326,
                51.561807
            ],
            [
                -0.507326,
                51.561807
            ],
            [
                -0.507167,
                51.561814
            ],
            [
                -0.506706,
                51.561799
            ],
            [
                -0.505418,
                51.561825
            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Roadworks
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Carriageway Closures