M4 eastbound lane 1 closure (46/8 to 45/0)

Cleared

Start time: Tue, Oct 13, 2026 7:44 PM
Expected end: Wed, Oct 14, 2026 5:00 AM
Duration: 56 minutes 1 second
Road: M4 – M4 Eastbound Between J10 And J8
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: Lane 1 closed, 1 of 3 lanes affected
Reason: Other

Live incident

Active roadworks

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Cleared

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First published: Tue, Oct 13, 2026 7:44 PM
Last updated: Tue, Oct 13, 2026 8:12 PM
Cleared: Tue, Oct 13, 2026 8:40 PM

Latest update: M4 eastbound lane 1 closure (46/8 to 45/0)

Coordinates: 51.495656, -0.732984
Latitude span: 51.490395 – 51.499205
Longitude span: -0.744625 – -0.723100
Bounding box centre: 51.494800, -0.733863
Location descriptions: M4 eastbound between J10 and J8

M4 eastbound within J8

Feed validity status: Active
Overall feed start: Tue, Oct 13, 2026 7:44 PM
Overall feed end: Wed, Oct 14, 2026 5:00 AM
Feed window length: 9 hours 16 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

5 coordinate pairs

Description: M4 eastbound between J10 and J8
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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 2

7 coordinate pairs

Description: M4 eastbound within J8
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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 3

4 coordinate pairs

Description: M4 eastbound within J8
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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: 140 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
51.499205 -0.7231

Segment 4

11 coordinate pairs

Description: M4 eastbound between J10 and J8
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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: 757 m
To Distance: 1,487 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.490395 -0.744625
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 5

8 coordinate pairs

Description: M4 eastbound between J10 and J8
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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

Geometry type: MultiLineString
Geometry points: 35
First coordinate pair: -0.736111, 51.494226
Road section segments: 1
Road section points: 35

View geometry JSON

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            [
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            [
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            [
                -0.742124,
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            [
                -0.741082,
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}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Other
Compliance: Mandatory
Probability: Certain
Validity status: Active
Road management: Other