Crash View

M4 eastbound lane 1 and 2 closure (47/0 to 44/8)

Cleared

M4 eastbound lane 1 and 2 closure (47/0 to 44/8)

Start time
Thu, Oct 8, 2026 7:00 PM
Expected end
Fri, Oct 9, 2026 5:00 AM
Duration
10 hours
Road
M4 – M4 Eastbound Within J8
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Lanes affected
2 of 2 lanes affected
Reason
Maintenance Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

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First published
Tue, Sep 29, 2026 9:36 AM
Last updated
Fri, Oct 9, 2026 4:48 AM
Cleared
Fri, Oct 9, 2026 5:00 AM
  • Latest update: M4 eastbound lane 1 and 2 closure (47/0 to 44/8)
Coordinates
51.495910, -0.731964
Latitude span
51.489585 – 51.499520
Longitude span
-0.747069 – -0.720240
Bounding box centre
51.494553, -0.733655
Location descriptions
  • M4 eastbound within J8
  • M4 eastbound between J10 and J8
Feed validity status
Planned
Overall feed start
Thu, Oct 8, 2026 7:00 PM
Overall feed end
Fri, Oct 9, 2026 5:00 AM
Feed window length
10 hours
Probability code (raw)
probable
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

7 coordinate pairs
Description
M4 eastbound within J8
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
{E5DDF82F-88B0-465C-BB9B-5BA161FCE5AE}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
334 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.497606 -0.729419
51.498124 -0.727872
51.498235 -0.727531
51.498386 -0.726973
51.498546 -0.7264
51.498763 -0.725497
51.498864 -0.725044

Segment 2

8 coordinate pairs
Description
M4 eastbound between J10 and J8
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
{394E8C98-DFB9-11A5-473C-261E7C67F490}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
350 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.495738 -0.733481
51.49584 -0.733289
51.496164 -0.732719
51.496169 -0.732708
51.496341 -0.732369
51.496512 -0.73203
51.497202 -0.730478
51.497606 -0.729419

Segment 3

4 coordinate pairs
Description
M4 eastbound within J8
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
{909C204B-8F2C-4438-8776-9577181A6C13}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
164 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.498864 -0.725044
51.498911 -0.724799
51.499186 -0.723243
51.499253 -0.72276

Segment 4

5 coordinate pairs
Description
M4 eastbound between J10 and J8
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
{6D452CED-D559-49F3-B872-855A40BD59BB}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
248 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.494226 -0.736111
51.494796 -0.735122
51.495575 -0.733785
51.495591 -0.733758
51.495738 -0.733481

Segment 5

13 coordinate pairs
Description
M4 eastbound between J10 and J8
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
{083D6D01-FC84-49B1-87BC-C7037B790508}
Linear Element Type
B Carriageway
From Distance
564 m
To Distance
1,487 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.489585 -0.747069
51.490069 -0.745562
51.490376 -0.74468
51.490479 -0.744388
51.490924 -0.743206
51.491339 -0.742124
51.49178 -0.741082
51.491978 -0.740598
51.493074 -0.738272
51.493446 -0.737553
51.493963 -0.73657
51.494149 -0.736246
51.494226 -0.736111

Segment 6

6 coordinate pairs
Description
M4 eastbound within J8
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
{557AA2F8-F9E8-4359-A811-40E00DDA95C9}
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 
51.499253 -0.72276
51.499325 -0.722224
51.499416 -0.721389
51.499476 -0.720752
51.499518 -0.720277
51.49952 -0.72024
Geometry type
MultiLineString
Geometry points
43
First coordinate pair
-0.729419, 51.497606
Road section segments
1
Road section points
43
View geometry JSON 
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    "type": "MultiLineString",
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                -0.729419,
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            ],
            [
                -0.726973,
                51.498386
            ],
            [
                -0.7264,
                51.498546
            ],
            [
                -0.725497,
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            [
                -0.733289,
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            ],
            [
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            ],
            [
                -0.732708,
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            ],
            [
                -0.732369,
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            ],
            [
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            ],
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                51.497202
            ],
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            ],
            [
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            [
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            ],
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            ],
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            ],
            [
                -0.735122,
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            ],
            [
                -0.733785,
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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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            ],
            [
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            ],
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            ],
            [
                -0.720752,
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            ],
            [
                -0.720277,
                51.499518
            ],
            [
                -0.72024,
                51.49952
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            -0.729419,
            51.497606
        ],
        [
            -0.727872,
            51.498124
        ],
        [
            -0.727531,
            51.498235
        ],
        [
            -0.726973,
            51.498386
        ],
        [
            -0.7264,
            51.498546
        ],
        [
            -0.725497,
            51.498763
        ],
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        ],
        [
            -0.733481,
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        ],
        [
            -0.732719,
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        ],
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            -0.732708,
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        ],
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        ],
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            -0.73203,
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        ],
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            51.497202
        ],
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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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        ],
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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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            -0.738272,
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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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            -0.720277,
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        ],
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            -0.72024,
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        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Maintenance Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Tue, Sep 29, 2026 9:36 AM
Record versioned
Fri, Oct 9, 2026 4:48 AM
Coordinate source
Geometry

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