Crash View

M4 Eastbound Jct 4b to Jct 3 Carriageway closure

Cleared

M4 Eastbound Jct 4b to Jct 3 Carriageway closure

Start time
Fri, Oct 30, 2026 11:00 PM
Expected end
Sat, Oct 31, 2026 5:30 AM
Duration
2 hours 35 minutes 2 seconds
Road
M4 – Connector At A408/M4 J4/M4 Spur (Heathrow)
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Reason
Other
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

Move Insights

Thinking of moving to this area?

Check flood risk, planning history, EPC ratings and more with a Move Insights property report.

Flood risk assessment
Planning history
EPC ratings & more
Get a property report
First published
Fri, Oct 30, 2026 10:48 PM
Last updated
Sat, Oct 31, 2026 12:36 AM
Cleared
Sat, Oct 31, 2026 1:35 AM
  • Latest update: M4 Eastbound Jct 4b to Jct 3 Carriageway closure
Coordinates
51.495806, -0.457563
Latitude span
51.492767 – 51.498281
Longitude span
-0.493699 – -0.410949
Bounding box centre
51.495524, -0.452324
Location descriptions
  • connector at A408/M4 J4/M4 spur (Heathrow)
  • M4 eastbound between J4B and J4
  • M4 J4 eastbound exit
  • M4 eastbound between J4 and J3
  • link road from M25 J15 anti-clockwise to M4 J4B eastbound
  • link road from M25 J15 to M4 J4B eastbound
  • M4 fast slip from A408 southbound to M4 J4 eastbound access
  • M4 J3 eastbound exit
  • link road from M25 J15 anti-clockwise to M4 J4B
Feed validity status
Active
Overall feed start
Fri, Oct 30, 2026 11:00 PM
Overall feed end
Sat, Oct 31, 2026 5:30 AM
Feed window length
6 hours 30 minutes
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

2 coordinate pairs
Description
connector at A408/M4 J4/M4 spur (Heathrow)
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{B06FAF47-694E-410E-B7C6-A146411D6DC8}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
40 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.497176 -0.452908
51.496817 -0.452963

Segment 2

7 coordinate pairs
Description
M4 eastbound between J4B and J4
Carriageway
Dual Carriageway
Lanes Restricted
5 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
{91ACBDF6-ECF4-4085-B4FB-797B8BAEA54C}
Linear Element Type
B Carriageway
From Distance
311 m
To Distance
604 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.495706 -0.464505
51.49571 -0.464441
51.495829 -0.462742
51.495892 -0.461414
51.495894 -0.461379
51.495894 -0.461345
51.495927 -0.460294

Segment 3

2 coordinate pairs
Description
M4 J4 eastbound exit
Lanes Restricted
4 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
{DBD0FCC3-C6F7-4751-967E-6F69CEAE0724}
Linear Element Type
B Carriageway Exit Slip
From Distance
0 m
To Distance
86 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.49606 -0.456936
51.496098 -0.455692

Segment 4

4 coordinate pairs
Description
M4 J4 eastbound exit
Lanes Restricted
4 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
{D2E293B8-8CBA-4F5F-85DE-69A2856AE4C8}
Linear Element Type
B Carriageway Exit Slip
From Distance
0 m
To Distance
233 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.495927 -0.460294
51.496007 -0.458368
51.49603 -0.457751
51.49606 -0.456936

Segment 5

3 coordinate pairs
Description
connector at A408/M4 J4/M4 spur (Heathrow)
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
{4D731291-3572-4B19-9B42-7DB998A0EED5}
Linear Element Type
A Carriageway Entry Slip
From Distance
15 m
To Distance
36 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.497331 -0.452735
51.497309 -0.45276
51.497176 -0.452908

Segment 6

5 coordinate pairs
Description
M4 eastbound between J4 and J3
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{E54946B4-B306-4292-9E00-7F994BD0C490}
Linear Element Type
B Carriageway
From Distance
225 m
To Distance
832 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.493461 -0.425426
51.493366 -0.424082
51.493074 -0.419771
51.492951 -0.417974
51.492862 -0.416739

Segment 7

9 coordinate pairs
Description
link road from M25 J15 anti-clockwise 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
{0150EA24-A942-473F-AF54-A07C17928422}
Linear Element Type
B Carriageway Exit Slip
From Distance
0 m
To Distance
309 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.498267 -0.493684
51.498192 -0.493598
51.497498 -0.492804
51.497361 -0.492633
51.497059 -0.492256
51.496913 -0.49206
51.496547 -0.491553
51.496428 -0.49137
51.496104 -0.490886

Segment 8

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 9

9 coordinate pairs
Description
M4 fast slip from A408 southbound to M4 J4 eastbound access
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
{71F83347-4EB9-4DB1-A17A-78DAC2794214}
Linear Element Type
B Carriageway Entry Slip
From Distance
0 m
To Distance
116 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.496817 -0.452963
51.496628 -0.452912
51.496528 -0.452858
51.496446 -0.452789
51.496401 -0.452747
51.496327 -0.452634
51.496152 -0.452309
51.496072 -0.452094
51.496046 -0.451972

Segment 10

2 coordinate pairs
Description
M4 J3 eastbound exit
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
{0C54E77D-94D2-46E8-B6B4-4FDC0F933CC4}
Linear Element Type
B Carriageway Exit Slip
From Distance
0 m
To Distance
58 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.492784 -0.411784
51.492767 -0.410949

Segment 11

2 coordinate pairs
Description
link road from M25 J15 anti-clockwise to M4 J4B
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Anticlockwise
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{BC7E8BD8-F4B3-42AA-A890-92E7DC10672F}
Linear Element Type
B Carriageway Exit Slip
From Distance
236 m
To Distance
238 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.498281 -0.493699
51.498267 -0.493684

Segment 12

4 coordinate pairs
Description
M4 J3 eastbound exit
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
{3E139173-1EED-47DE-9DBB-1CDB4B738CA6}
Linear Element Type
B Carriageway Exit Slip
From Distance
0 m
To Distance
344 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.492862 -0.416739
51.492884 -0.415657
51.49279 -0.412074
51.492784 -0.411784
Geometry type
MultiLineString
Geometry points
52
First coordinate pair
-0.452908, 51.497176
Road section segments
1
Road section points
52
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.452908,
                51.497176
            ],
            [
                -0.452963,
                51.496817
            ],
            [
                -0.464505,
                51.495706
            ],
            [
                -0.464441,
                51.49571
            ],
            [
                -0.462742,
                51.495829
            ],
            [
                -0.461414,
                51.495892
            ],
            [
                -0.461379,
                51.495894
            ],
            [
                -0.461345,
                51.495894
            ],
            [
                -0.460294,
                51.495927
            ],
            [
                -0.456936,
                51.49606
            ],
            [
                -0.455692,
                51.496098
            ],
            [
                -0.460294,
                51.495927
            ],
            [
                -0.458368,
                51.496007
            ],
            [
                -0.457751,
                51.49603
            ],
            [
                -0.456936,
                51.49606
            ],
            [
                -0.452735,
                51.497331
            ],
            [
                -0.45276,
                51.497309
            ],
            [
                -0.452908,
                51.497176
            ],
            [
                -0.425426,
                51.493461
            ],
            [
                -0.424082,
                51.493366
            ],
            [
                -0.419771,
                51.493074
            ],
            [
                -0.417974,
                51.492951
            ],
            [
                -0.416739,
                51.492862
            ],
            [
                -0.493684,
                51.498267
            ],
            [
                -0.493598,
                51.498192
            ],
            [
                -0.492804,
                51.497498
            ],
            [
                -0.492633,
                51.497361
            ],
            [
                -0.492256,
                51.497059
            ],
            [
                -0.49206,
                51.496913
            ],
            [
                -0.491553,
                51.496547
            ],
            [
                -0.49137,
                51.496428
            ],
            [
                -0.490886,
                51.496104
            ],
            [
                -0.490886,
                51.496104
            ],
            [
                -0.490866,
                51.496095
            ],
            [
                -0.490662,
                51.495945
            ],
            [
                -0.452963,
                51.496817
            ],
            [
                -0.452912,
                51.496628
            ],
            [
                -0.452858,
                51.496528
            ],
            [
                -0.452789,
                51.496446
            ],
            [
                -0.452747,
                51.496401
            ],
            [
                -0.452634,
                51.496327
            ],
            [
                -0.452309,
                51.496152
            ],
            [
                -0.452094,
                51.496072
            ],
            [
                -0.451972,
                51.496046
            ],
            [
                -0.411784,
                51.492784
            ],
            [
                -0.410949,
                51.492767
            ],
            [
                -0.493699,
                51.498281
            ],
            [
                -0.493684,
                51.498267
            ],
            [
                -0.416739,
                51.492862
            ],
            [
                -0.415657,
                51.492884
            ],
            [
                -0.412074,
                51.49279
            ],
            [
                -0.411784,
                51.492784
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            -0.452908,
            51.497176
        ],
        [
            -0.452963,
            51.496817
        ],
        [
            -0.464505,
            51.495706
        ],
        [
            -0.464441,
            51.49571
        ],
        [
            -0.462742,
            51.495829
        ],
        [
            -0.461414,
            51.495892
        ],
        [
            -0.461379,
            51.495894
        ],
        [
            -0.461345,
            51.495894
        ],
        [
            -0.460294,
            51.495927
        ],
        [
            -0.456936,
            51.49606
        ],
        [
            -0.455692,
            51.496098
        ],
        [
            -0.460294,
            51.495927
        ],
        [
            -0.458368,
            51.496007
        ],
        [
            -0.457751,
            51.49603
        ],
        [
            -0.456936,
            51.49606
        ],
        [
            -0.452735,
            51.497331
        ],
        [
            -0.45276,
            51.497309
        ],
        [
            -0.452908,
            51.497176
        ],
        [
            -0.425426,
            51.493461
        ],
        [
            -0.424082,
            51.493366
        ],
        [
            -0.419771,
            51.493074
        ],
        [
            -0.417974,
            51.492951
        ],
        [
            -0.416739,
            51.492862
        ],
        [
            -0.493684,
            51.498267
        ],
        [
            -0.493598,
            51.498192
        ],
        [
            -0.492804,
            51.497498
        ],
        [
            -0.492633,
            51.497361
        ],
        [
            -0.492256,
            51.497059
        ],
        [
            -0.49206,
            51.496913
        ],
        [
            -0.491553,
            51.496547
        ],
        [
            -0.49137,
            51.496428
        ],
        [
            -0.490886,
            51.496104
        ],
        [
            -0.490886,
            51.496104
        ],
        [
            -0.490866,
            51.496095
        ],
        [
            -0.490662,
            51.495945
        ],
        [
            -0.452963,
            51.496817
        ],
        [
            -0.452912,
            51.496628
        ],
        [
            -0.452858,
            51.496528
        ],
        [
            -0.452789,
            51.496446
        ],
        [
            -0.452747,
            51.496401
        ],
        [
            -0.452634,
            51.496327
        ],
        [
            -0.452309,
            51.496152
        ],
        [
            -0.452094,
            51.496072
        ],
        [
            -0.451972,
            51.496046
        ],
        [
            -0.411784,
            51.492784
        ],
        [
            -0.410949,
            51.492767
        ],
        [
            -0.493699,
            51.498281
        ],
        [
            -0.493684,
            51.498267
        ],
        [
            -0.416739,
            51.492862
        ],
        [
            -0.415657,
            51.492884
        ],
        [
            -0.412074,
            51.49279
        ],
        [
            -0.411784,
            51.492784
        ]
    ]
]
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
Fri, Oct 30, 2026 10:48 PM
Record versioned
Sat, Oct 31, 2026 12:36 AM
Coordinate source
Geometry

Driving on the M4? See every live closure, roadwork and planned restriction on this road.

M4 live closures

Related incidents

M4 eastbound Jct 19 to Jct 18 single lane running 174/6-169/0

Planned Roadworks National Highways
South Gloucestershire M4 · M4 Eastbound Between J19 And J18

Starts in 14 hours 50 minutes

Starts 31 Oct 2026, 20:00 Expected clear 1 Nov 2026, 06:00

M4 eastbound Jct 19 to Jct 18 single lane running 174/6-169/0

Category: Road Maintenance
View update

M4 Eastbound Jct 5 to Jct 4b Lane 4,3,2 closure

Cleared Roadworks National Highways
Slough M4 · M4 Eastbound Within J5

Cleared 24 minutes 12 seconds ago

Started 30 Oct 2026, 23:00 Ended 31 Oct 2026, 04:45

M4 Eastbound Jct 5 to Jct 4b Lane 4,3,2 closure

Category: Road Maintenance
View update

M4 Eastbound Jct 5 to Jct 4b Lane closure

Cleared Roadworks National Highways
Slough M4 · M4 Eastbound Within J5

Cleared 24 minutes 12 seconds ago

Started 30 Oct 2026, 23:00 Ended 31 Oct 2026, 04:45

M4 Eastbound Jct 5 to Jct 4b Lane closure

Category: Road Maintenance
View update

M4 eastbound Jct 17 to 16 carriageway closed

Cleared Roadworks National Highways
Wiltshire M4 · M4 Eastbound Between J17 And J16

Cleared 2 hours 29 minutes ago

Started 30 Oct 2026, 21:07 Ended 31 Oct 2026, 02:40

M4 eastbound Jct 17 to 16 carriageway closed

Category: Road Maintenance
View update

M4 eastbound Jct 17 to 16 carriageway closed

Cleared Roadworks National Highways
Wiltshire M4 · M4 Eastbound Between J17 And J16

Cleared 8 hours 9 minutes ago

Started 30 Oct 2026, 21:00 Ended 30 Oct 2026, 21:00

M4 eastbound Jct 17 to 16 carriageway closed

Category: Road Maintenance
View update

M4 eastbound lane 1 closure (59/3 to 57/3)

Cleared Roadworks National Highways
Wokingham M4 · M4 Eastbound Between J11 And J10

Cleared 8 hours 9 minutes ago

Started 30 Oct 2026, 21:00 Ended 30 Oct 2026, 21:00

M4 eastbound lane 1 closure (59/3 to 57/3)

Category: Road Maintenance
View update