M4 eastbound lane 1 and 2 closure (40/9 to 39/9)

Cleared

Start time: Wed, Oct 14, 2026 7:01 PM
Expected end: Thu, Oct 15, 2026 5:00 AM
Duration: 4 hours 49 minutes 2 seconds
Road: M4 – M4 Eastbound Within J7
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 2 of 2 lanes affected
Reason: Maintenance Work

Live incident

Active roadworks

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Cleared

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First published: Wed, Oct 14, 2026 7:01 PM
Last updated: Wed, Oct 14, 2026 11:14 PM
Cleared: Wed, Oct 14, 2026 11:50 PM

Latest update: M4 eastbound lane 1 and 2 closure (40/9 to 39/9)

Coordinates: 51.511664, -0.659991
Latitude span: 51.510715 – 51.511937
Longitude span: -0.669486 – -0.655227
Bounding box centre: 51.511326, -0.662357
Location descriptions: M4 eastbound within J7

M4 eastbound between J8 and J7

Feed validity status: Active
Overall feed start: Wed, Oct 14, 2026 7:01 PM
Overall feed end: Thu, Oct 15, 2026 5:00 AM
Feed window length: 9 hours 59 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

3 coordinate pairs

Description: M4 eastbound within J7
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {8DF9297B-A5A6-479A-B856-A32AEBAFCCFD}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 19 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.511625 -0.655499
51.511596 -0.655356
51.511575 -0.655227

Segment 2

11 coordinate pairs

Description: M4 eastbound between J8 and J7
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {B578725B-1B95-455A-87D6-B938215BEC9D}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 359 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.511585 -0.663293
51.511585 -0.663288
51.511762 -0.662023
51.51182 -0.66156
51.511852 -0.661228
51.511895 -0.660261
51.511897 -0.660218
51.511909 -0.659886
51.511937 -0.659164
51.511931 -0.65866
51.511916 -0.658156

Segment 3

6 coordinate pairs

Description: M4 eastbound between J8 and J7
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {268B9FF5-7948-4480-AC92-36E35C16FD33}
Linear Element Type: B Carriageway
From Distance: 639 m
To Distance: 1,079 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.510715 -0.669486
51.511081 -0.666957
51.511331 -0.665163
51.511414 -0.664612
51.51153 -0.663687
51.511585 -0.663293

Segment 4

2 coordinate pairs

Description: M4 eastbound within J7
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {74E97C9A-F4C3-424A-9491-D4766DF00E0A}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 10 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.511645 -0.655642
51.511625 -0.655499

Segment 5

6 coordinate pairs

Description: M4 eastbound within J7
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {0925E995-C6AC-4FCB-980D-05618074C50C}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 177 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.511916 -0.658156
51.511884 -0.657667
51.511879 -0.657624
51.511773 -0.656633
51.511683 -0.655872
51.511645 -0.655642

Geometry type: MultiLineString
Geometry points: 28
First coordinate pair: -0.655499, 51.511625
Road section segments: 1
Road section points: 28

View geometry JSON

{
    "type": "MultiLineString",
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                -0.655356,
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                51.511575
            ],
            [
                -0.663293,
                51.511585
            ],
            [
                -0.663288,
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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: Maintenance Work
Compliance: Mandatory
Probability: Certain
Validity status: Active
Road management: Other