Crash View

M4 Eastbound Jct 5 to Jct 4b Lane closure

Cleared

M4 Eastbound Jct 5 to Jct 4b Lane closure

Start time
Mon, Oct 26, 2026 10:07 PM
Expected end
Tue, Oct 27, 2026 5:30 AM
Duration
1 hour 28 minutes 1 second
Road
M4 – M4 Eastbound Within J5
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Lanes affected
3 of 1 lanes affected, 3 of 2 lanes affected
Reason
Other
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

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First published
Mon, Oct 26, 2026 10:09 PM
Last updated
Mon, Oct 26, 2026 11:03 PM
Cleared
Mon, Oct 26, 2026 11:35 PM
  • Latest update: M4 Eastbound Jct 5 to Jct 4b Lane closure
Coordinates
51.492461, -0.537479
Latitude span
51.490754 – 51.493336
Longitude span
-0.547022 – -0.526805
Bounding box centre
51.492045, -0.536914
Location descriptions
  • M4 eastbound within J5
  • M4 eastbound between J5 and J4B
Feed validity status
Active
Overall feed start
Mon, Oct 26, 2026 10:07 PM
Overall feed end
Tue, Oct 27, 2026 5:30 AM
Feed window length
7 hours 23 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
M4 eastbound within J5
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
1 operational lane
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
{4AE6FFC3-8638-D5A0-2A8D-DD39D45FECFC}
Linear Element Type
B Carriageway
From Distance
243 m
To Distance
295 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.490754 -0.547022
51.490851 -0.546659
51.490851 -0.546659
51.490939 -0.546328

Segment 2

13 coordinate pairs
Description
M4 eastbound within J5
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{1224C050-767F-4687-9DFC-90D6D4B6BEB3}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
588 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.49209 -0.541556
51.492149 -0.541237
51.492233 -0.540803
51.492325 -0.540252
51.492477 -0.539401
51.492485 -0.539354
51.492659 -0.538153
51.492799 -0.537111
51.492897 -0.536301
51.492962 -0.535809
51.49297 -0.535737
51.493051 -0.534985
51.493176 -0.533279

Segment 3

6 coordinate pairs
Description
M4 eastbound between J5 and J4B
Carriageway
Dual Carriageway
Lanes Restricted
3 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
{2D7FBEAA-7E69-47DC-8335-F678E9006D5D}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
37 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.493176 -0.533279
51.493179 -0.53324
51.493182 -0.53319
51.493186 -0.533137
51.493198 -0.532962
51.493212 -0.532747

Segment 4

4 coordinate pairs
Description
M4 eastbound within J5
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{F1D213A3-EF90-165A-A2EC-687CB848055B}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
152 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.490939 -0.546328
51.491027 -0.545997
51.491476 -0.544315
51.491477 -0.544313

Segment 5

6 coordinate pairs
Description
M4 eastbound within J5
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{BAE7D305-A98C-4A12-822A-23D825025F6A}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
203 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.491477 -0.544313
51.491506 -0.544194
51.491656 -0.543587
51.491727 -0.543268
51.491886 -0.542542
51.49209 -0.541556

Segment 6

11 coordinate pairs
Description
M4 eastbound between J5 and J4B
Carriageway
Dual Carriageway
Lanes Restricted
3 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
{E240EF51-44E3-47A6-AAA7-217FB89D1F13}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
413 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.493212 -0.532747
51.493249 -0.532127
51.493264 -0.531853
51.493277 -0.531492
51.493297 -0.530915
51.493315 -0.530194
51.493328 -0.529476
51.493336 -0.529027
51.493332 -0.527947
51.493309 -0.526881
51.493307 -0.526805
Geometry type
MultiLineString
Geometry points
44
First coordinate pair
-0.547022, 51.490754
Road section segments
1
Road section points
44
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.547022,
                51.490754
            ],
            [
                -0.546659,
                51.490851
            ],
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                -0.546659,
                51.490851
            ],
            [
                -0.546328,
                51.490939
            ],
            [
                -0.541556,
                51.49209
            ],
            [
                -0.541237,
                51.492149
            ],
            [
                -0.540803,
                51.492233
            ],
            [
                -0.540252,
                51.492325
            ],
            [
                -0.539401,
                51.492477
            ],
            [
                -0.539354,
                51.492485
            ],
            [
                -0.538153,
                51.492659
            ],
            [
                -0.537111,
                51.492799
            ],
            [
                -0.536301,
                51.492897
            ],
            [
                -0.535809,
                51.492962
            ],
            [
                -0.535737,
                51.49297
            ],
            [
                -0.534985,
                51.493051
            ],
            [
                -0.533279,
                51.493176
            ],
            [
                -0.533279,
                51.493176
            ],
            [
                -0.53324,
                51.493179
            ],
            [
                -0.53319,
                51.493182
            ],
            [
                -0.533137,
                51.493186
            ],
            [
                -0.532962,
                51.493198
            ],
            [
                -0.532747,
                51.493212
            ],
            [
                -0.546328,
                51.490939
            ],
            [
                -0.545997,
                51.491027
            ],
            [
                -0.544315,
                51.491476
            ],
            [
                -0.544313,
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            ],
            [
                -0.544313,
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            ],
            [
                -0.544194,
                51.491506
            ],
            [
                -0.543587,
                51.491656
            ],
            [
                -0.543268,
                51.491727
            ],
            [
                -0.542542,
                51.491886
            ],
            [
                -0.541556,
                51.49209
            ],
            [
                -0.532747,
                51.493212
            ],
            [
                -0.532127,
                51.493249
            ],
            [
                -0.531853,
                51.493264
            ],
            [
                -0.531492,
                51.493277
            ],
            [
                -0.530915,
                51.493297
            ],
            [
                -0.530194,
                51.493315
            ],
            [
                -0.529476,
                51.493328
            ],
            [
                -0.529027,
                51.493336
            ],
            [
                -0.527947,
                51.493332
            ],
            [
                -0.526881,
                51.493309
            ],
            [
                -0.526805,
                51.493307
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            -0.547022,
            51.490754
        ],
        [
            -0.546659,
            51.490851
        ],
        [
            -0.546659,
            51.490851
        ],
        [
            -0.546328,
            51.490939
        ],
        [
            -0.541556,
            51.49209
        ],
        [
            -0.541237,
            51.492149
        ],
        [
            -0.540803,
            51.492233
        ],
        [
            -0.540252,
            51.492325
        ],
        [
            -0.539401,
            51.492477
        ],
        [
            -0.539354,
            51.492485
        ],
        [
            -0.538153,
            51.492659
        ],
        [
            -0.537111,
            51.492799
        ],
        [
            -0.536301,
            51.492897
        ],
        [
            -0.535809,
            51.492962
        ],
        [
            -0.535737,
            51.49297
        ],
        [
            -0.534985,
            51.493051
        ],
        [
            -0.533279,
            51.493176
        ],
        [
            -0.533279,
            51.493176
        ],
        [
            -0.53324,
            51.493179
        ],
        [
            -0.53319,
            51.493182
        ],
        [
            -0.533137,
            51.493186
        ],
        [
            -0.532962,
            51.493198
        ],
        [
            -0.532747,
            51.493212
        ],
        [
            -0.546328,
            51.490939
        ],
        [
            -0.545997,
            51.491027
        ],
        [
            -0.544315,
            51.491476
        ],
        [
            -0.544313,
            51.491477
        ],
        [
            -0.544313,
            51.491477
        ],
        [
            -0.544194,
            51.491506
        ],
        [
            -0.543587,
            51.491656
        ],
        [
            -0.543268,
            51.491727
        ],
        [
            -0.542542,
            51.491886
        ],
        [
            -0.541556,
            51.49209
        ],
        [
            -0.532747,
            51.493212
        ],
        [
            -0.532127,
            51.493249
        ],
        [
            -0.531853,
            51.493264
        ],
        [
            -0.531492,
            51.493277
        ],
        [
            -0.530915,
            51.493297
        ],
        [
            -0.530194,
            51.493315
        ],
        [
            -0.529476,
            51.493328
        ],
        [
            -0.529027,
            51.493336
        ],
        [
            -0.527947,
            51.493332
        ],
        [
            -0.526881,
            51.493309
        ],
        [
            -0.526805,
            51.493307
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Other
Compliance
Mandatory
Probability
Certain
Validity status
Active
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Mon, Oct 26, 2026 10:09 PM
Record versioned
Mon, Oct 26, 2026 11:03 PM
Coordinate source
Geometry

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