Crash View

M25 Clockwise Jct 15 to M4 Eastbound and Westbound Jct 4B exit slip road and link road closure

Cleared

M25 Clockwise Jct 15 to M4 Eastbound and Westbound Jct 4B exit slip road and link road closure

Start time
Mon, Sep 28, 2026 9:00 PM
Expected end
Tue, Sep 29, 2026 4:00 AM
Duration
55 minutes 1 second
Road
M4 – Link Road From M25 J15 Clockwise To M4 J4B Eastbound
Category
Road Maintenance
Direction
Eastbound
Reason
Maintenance Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

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First published
Tue, Aug 4, 2026 11:09 AM
Last updated
Mon, Sep 28, 2026 9:24 PM
Cleared
Mon, Sep 28, 2026 9:55 PM
  • Latest update: M25 Clockwise Jct 15 to M4 Eastbound and Westbound Jct 4B exit slip road and link road closure
Coordinates
51.493855, -0.494565
Latitude span
51.489255 – 51.496358
Longitude span
-0.496284 – -0.490662
Bounding box centre
51.492807, -0.493473
Location descriptions
  • link road from M25 J15 clockwise to M4 J4B eastbound
  • link road from M25 J15 to M4 J4B eastbound
  • link road from M25 J15 clockwise to M4 J4B
Feed validity status
Planned
Overall feed start
Mon, Sep 28, 2026 9:00 PM
Overall feed end
Tue, Sep 29, 2026 4:00 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

2 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B eastbound
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
{2B762EEE-A2CF-4AC1-A5B8-D60A6E4D37A8}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
34 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.495405 -0.4944
51.495661 -0.494117

Segment 2

3 coordinate pairs
Description
link road from M25 J15 to M4 J4B eastbound
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
{7DEB761D-8486-4828-8CF6-58B726C5A28E}
Linear Element Type
B Carriageway Exit Slip
From Distance
0 m
To Distance
23 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.496104 -0.490886
51.496095 -0.490866
51.495945 -0.490662

Segment 3

2 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B eastbound
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
{184BA49E-C19B-48A1-8D29-1A3E563E7836}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
19 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.494602 -0.495252
51.494749 -0.495099

Segment 4

2 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B eastbound
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
{9AE43A10-1B30-4EA7-A75C-FC480194A44B}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
67 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.4949 -0.49495
51.495405 -0.4944

Segment 5

8 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{7087B591-0C14-4830-A32C-4884897C37FA}
Linear Element Type
A Carriageway Exit Slip
From Distance
0 m
To Distance
185 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.489255 -0.496026
51.489652 -0.495886
51.490199 -0.495782
51.490324 -0.495763
51.490486 -0.495758
51.490594 -0.495754
51.490828 -0.495775
51.490907 -0.495788

Segment 6

15 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B eastbound
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
{A2FABB7B-542E-44F8-AA3A-A7C65DC0209A}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
345 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.491659 -0.496022
51.491929 -0.496105
51.492291 -0.496217
51.49257 -0.496265
51.492651 -0.496277
51.492867 -0.496284
51.493082 -0.496263
51.493315 -0.496198
51.493548 -0.496118
51.493754 -0.49601
51.493843 -0.49595
51.49403 -0.495814
51.494208 -0.49565
51.494554 -0.495307
51.494602 -0.495252

Segment 7

2 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B eastbound
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
{DB74D23E-CDCF-4660-B416-89274E984AF1}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
19 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.494749 -0.495099
51.4949 -0.49495

Segment 8

16 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B eastbound
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
{1D6A9D2A-8A4D-46E8-ACBE-4B9B89769EF5}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
257 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.495661 -0.494117
51.495831 -0.493911
51.495928 -0.493778
51.495963 -0.493733
51.496069 -0.493543
51.496156 -0.493352
51.496243 -0.493119
51.496269 -0.493017
51.496319 -0.492742
51.496344 -0.492539
51.496358 -0.492251
51.496336 -0.491963
51.496297 -0.491705
51.496258 -0.491476
51.496192 -0.491205
51.496104 -0.490886

Segment 9

6 coordinate pairs
Description
link road from M25 J15 clockwise to M4 J4B
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{45F8347E-ECA1-41DD-85A1-7FD2E7414ABC}
Linear Element Type
A Carriageway Exit Slip
From Distance
0 m
To Distance
85 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.490907 -0.495788
51.491044 -0.495811
51.491297 -0.495875
51.491387 -0.495901
51.491577 -0.495981
51.491659 -0.496022
Geometry type
MultiLineString
Geometry points
56
First coordinate pair
-0.494400, 51.495405
Road section segments
1
Road section points
56
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.4944,
                51.495405
            ],
            [
                -0.494117,
                51.495661
            ],
            [
                -0.490886,
                51.496104
            ],
            [
                -0.490866,
                51.496095
            ],
            [
                -0.490662,
                51.495945
            ],
            [
                -0.495252,
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            ],
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            ],
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            ],
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            ],
            [
                -0.496026,
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            ],
            [
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                51.489652
            ],
            [
                -0.495782,
                51.490199
            ],
            [
                -0.495763,
                51.490324
            ],
            [
                -0.495758,
                51.490486
            ],
            [
                -0.495754,
                51.490594
            ],
            [
                -0.495775,
                51.490828
            ],
            [
                -0.495788,
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            ],
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                -0.496022,
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            ],
            [
                -0.496105,
                51.491929
            ],
            [
                -0.496217,
                51.492291
            ],
            [
                -0.496265,
                51.49257
            ],
            [
                -0.496277,
                51.492651
            ],
            [
                -0.496284,
                51.492867
            ],
            [
                -0.496263,
                51.493082
            ],
            [
                -0.496198,
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            ],
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                -0.496118,
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            ],
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            ],
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            ],
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                51.494208
            ],
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                -0.495307,
                51.494554
            ],
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                51.494602
            ],
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            ],
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                -0.49495,
                51.4949
            ],
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                51.495661
            ],
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            ],
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            ],
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            ],
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                -0.493543,
                51.496069
            ],
            [
                -0.493352,
                51.496156
            ],
            [
                -0.493119,
                51.496243
            ],
            [
                -0.493017,
                51.496269
            ],
            [
                -0.492742,
                51.496319
            ],
            [
                -0.492539,
                51.496344
            ],
            [
                -0.492251,
                51.496358
            ],
            [
                -0.491963,
                51.496336
            ],
            [
                -0.491705,
                51.496297
            ],
            [
                -0.491476,
                51.496258
            ],
            [
                -0.491205,
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            ],
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            ],
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            ],
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            ],
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            ],
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                -0.495901,
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            ],
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                -0.495981,
                51.491577
            ],
            [
                -0.496022,
                51.491659
            ]
        ]
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}
View road section coordinates 
[
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            -0.4944,
            51.495405
        ],
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            -0.494117,
            51.495661
        ],
        [
            -0.490886,
            51.496104
        ],
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            51.496095
        ],
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            -0.490662,
            51.495945
        ],
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            51.494602
        ],
        [
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            51.494749
        ],
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            -0.49495,
            51.4949
        ],
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            -0.4944,
            51.495405
        ],
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            -0.496026,
            51.489255
        ],
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            51.489652
        ],
        [
            -0.495782,
            51.490199
        ],
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            -0.495763,
            51.490324
        ],
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            -0.495758,
            51.490486
        ],
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            -0.495754,
            51.490594
        ],
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            -0.495775,
            51.490828
        ],
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            51.490907
        ],
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            51.491659
        ],
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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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            -0.49601,
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        ],
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            -0.49595,
            51.493843
        ],
        [
            -0.495814,
            51.49403
        ],
        [
            -0.49565,
            51.494208
        ],
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            -0.495307,
            51.494554
        ],
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            51.494602
        ],
        [
            -0.495099,
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        ],
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        ],
        [
            -0.494117,
            51.495661
        ],
        [
            -0.493911,
            51.495831
        ],
        [
            -0.493778,
            51.495928
        ],
        [
            -0.493733,
            51.495963
        ],
        [
            -0.493543,
            51.496069
        ],
        [
            -0.493352,
            51.496156
        ],
        [
            -0.493119,
            51.496243
        ],
        [
            -0.493017,
            51.496269
        ],
        [
            -0.492742,
            51.496319
        ],
        [
            -0.492539,
            51.496344
        ],
        [
            -0.492251,
            51.496358
        ],
        [
            -0.491963,
            51.496336
        ],
        [
            -0.491705,
            51.496297
        ],
        [
            -0.491476,
            51.496258
        ],
        [
            -0.491205,
            51.496192
        ],
        [
            -0.490886,
            51.496104
        ],
        [
            -0.495788,
            51.490907
        ],
        [
            -0.495811,
            51.491044
        ],
        [
            -0.495875,
            51.491297
        ],
        [
            -0.495901,
            51.491387
        ],
        [
            -0.495981,
            51.491577
        ],
        [
            -0.496022,
            51.491659
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Maintenance Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Tue, Aug 4, 2026 11:09 AM
Record versioned
Mon, Sep 28, 2026 9:24 PM
Coordinate source
Geometry

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