M4 eastbound Jct 8/9 entry slip road closure

Active

M4 eastbound Jct 8/9 entry slip road closure

Start time
Tue, Jul 7, 2026 8:00 PM
Expected end
Wed, Jul 8, 2026 5:00 AM
Duration
9 hours
Road
M4 – M4 J8 Eastbound Exit
Category
Road Maintenance
Direction
Eastbound
Reason
Other
Live incident
Active roadworks
Planned
Cleared
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First published
Tue, Jul 7, 2026 7:53 PM
Last updated
Tue, Jul 7, 2026 11:06 PM
Cleared
Wed, Jul 8, 2026 5:00 AM
  • Latest update: M4 eastbound Jct 8/9 entry slip road closure
Coordinates
51.499613, -0.718523
Latitude span
51.499341 – 51.499734
Longitude span
-0.722888 – -0.713110
Bounding box centre
51.499538, -0.717999
Location descriptions
  • M4 J8 eastbound exit
  • M4 J8 eastbound access
Feed validity status
Active
Overall feed start
Tue, Jul 7, 2026 8:00 PM
Overall feed end
Wed, Jul 8, 2026 5:00 AM
Feed window length
9 hours
Probability code (raw)
certain
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

11 coordinate pairs
Description
M4 J8 eastbound exit
Lanes Restricted
1 lane restricted
Operational Lanes
0 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
{3FC76A8B-4B88-6629-A42A-5D71D3A9041C}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
439 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.499694 -0.719357
51.499723 -0.718425
51.499704 -0.71743
51.49969 -0.71702
51.499655 -0.716264
51.499612 -0.715555
51.499525 -0.714433
51.49944 -0.713439
51.499426 -0.713259
51.499358 -0.71314
51.499341 -0.71311

Segment 2

11 coordinate pairs
Description
M4 J8 eastbound access
Lanes Restricted
2 lanes restricted
Operational Lanes
0 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
{D8836978-BEA4-44BC-A754-31FDA1B0BC37}
Linear Element Type
B Carriageway Entry Slip
From Distance
9 m
To Distance
257 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.499734 -0.722888
51.499705 -0.722789
51.499654 -0.722645
51.499615 -0.722471
51.499604 -0.722302
51.499612 -0.721928
51.49964 -0.721312
51.499672 -0.72062
51.499689 -0.72005
51.499692 -0.719703
51.499694 -0.719357
Geometry type
MultiLineString
Geometry points
22
First coordinate pair
-0.719357, 51.499694
Road section segments
1
Road section points
22
View geometry JSON
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.719357,
                51.499694
            ],
            [
                -0.718425,
                51.499723
            ],
            [
                -0.71743,
                51.499704
            ],
            [
                -0.71702,
                51.49969
            ],
            [
                -0.716264,
                51.499655
            ],
            [
                -0.715555,
                51.499612
            ],
            [
                -0.714433,
                51.499525
            ],
            [
                -0.713439,
                51.49944
            ],
            [
                -0.713259,
                51.499426
            ],
            [
                -0.71314,
                51.499358
            ],
            [
                -0.71311,
                51.499341
            ],
            [
                -0.722888,
                51.499734
            ],
            [
                -0.722789,
                51.499705
            ],
            [
                -0.722645,
                51.499654
            ],
            [
                -0.722471,
                51.499615
            ],
            [
                -0.722302,
                51.499604
            ],
            [
                -0.721928,
                51.499612
            ],
            [
                -0.721312,
                51.49964
            ],
            [
                -0.72062,
                51.499672
            ],
            [
                -0.72005,
                51.499689
            ],
            [
                -0.719703,
                51.499692
            ],
            [
                -0.719357,
                51.499694
            ]
        ]
    ]
}
View road section coordinates
[
    [
        [
            -0.719357,
            51.499694
        ],
        [
            -0.718425,
            51.499723
        ],
        [
            -0.71743,
            51.499704
        ],
        [
            -0.71702,
            51.49969
        ],
        [
            -0.716264,
            51.499655
        ],
        [
            -0.715555,
            51.499612
        ],
        [
            -0.714433,
            51.499525
        ],
        [
            -0.713439,
            51.49944
        ],
        [
            -0.713259,
            51.499426
        ],
        [
            -0.71314,
            51.499358
        ],
        [
            -0.71311,
            51.499341
        ],
        [
            -0.722888,
            51.499734
        ],
        [
            -0.722789,
            51.499705
        ],
        [
            -0.722645,
            51.499654
        ],
        [
            -0.722471,
            51.499615
        ],
        [
            -0.722302,
            51.499604
        ],
        [
            -0.721928,
            51.499612
        ],
        [
            -0.721312,
            51.49964
        ],
        [
            -0.72062,
            51.499672
        ],
        [
            -0.72005,
            51.499689
        ],
        [
            -0.719703,
            51.499692
        ],
        [
            -0.719357,
            51.499694
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Other
Compliance
Mandatory
Probability
Certain
Validity status
Active
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Tue, Jul 7, 2026 7:53 PM
Record versioned
Tue, Jul 7, 2026 11:06 PM
Coordinate source
Geometry

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