M4 eastbound lane 4 closure (34/6 to 30/8)

Planned

Start time: Tue, Jan 6, 2026 8:00 PM
Expected end: Wed, Jan 7, 2026 6:00 AM
Duration: 10 hours
Road: M4 – M4 Eastbound Within J5
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: Lane 4 closed, 1 of 3 lanes affected, 1 of 2 lanes affected
Reason: Repair Work

Active

Planned

Cleared

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First published: Tue, Jan 6, 2026 3:55 AM
Last updated: Tue, Jan 6, 2026 7:54 PM
Cleared: Wed, Jan 7, 2026 6:00 AM

Latest update: M4 eastbound lane 4 closure (34/6 to 30/8)

Coordinates: 51.489555, -0.562784
Latitude span: 51.486577 – 51.495670
Longitude span: -0.585360 – -0.538913
Bounding box centre: 51.491124, -0.562137
Location descriptions: M4 eastbound within J5

M4 eastbound between J6 and J5

Feed validity status: Planned
Overall feed start: Tue, Jan 6, 2026 8:00 PM
Overall feed end: Wed, Jan 7, 2026 6:00 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

6 coordinate pairs

Description: M4 eastbound within J5
Carriageway: Dual Carriageway
Lane Usage: Cl4
Lane Number: 4
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: {4AE6FFC3-8638-D5A0-2A8D-DD39D45FECFC}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 295 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.489843 -0.55021
51.48995 -0.549844
51.49053 -0.547862
51.490851 -0.546659
51.490851 -0.546659
51.490939 -0.546328

Segment 2

50 coordinate pairs

Description: M4 eastbound between J6 and J5
Carriageway: Dual Carriageway
Lane Usage: Cl4
Lane Number: 4
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: {4CB54456-8BB5-4985-B157-0BF450980DE7}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 1,765 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.487803 -0.574323
51.487743 -0.574132
51.487715 -0.574061
51.487705 -0.574027
51.487701 -0.574013
51.487668 -0.57389
51.487489 -0.573218
51.487309 -0.572489
51.48716 -0.571785
51.487061 -0.571316
51.486954 -0.570671
51.486799 -0.569592
51.486777 -0.569438
51.4867 -0.568723
51.486666 -0.568404
51.486633 -0.567945
51.486593 -0.566909
51.486589 -0.566563
51.486577 -0.56557
51.48658 -0.565188
51.48658 -0.565109
51.4866 -0.564489
51.486653 -0.563666
51.486724 -0.562915
51.486739 -0.562746
51.486748 -0.56264
51.486838 -0.56197
51.486847 -0.561903
51.486954 -0.561136
51.487081 -0.560455
51.487233 -0.559687
51.487347 -0.559206
51.487404 -0.558961
51.487593 -0.558221
51.488326 -0.555648
51.488514 -0.554922
51.488798 -0.553967
51.488851 -0.553788
51.488988 -0.553282
51.4892 -0.552497
51.489589 -0.551099
51.489614 -0.551011
51.489695 -0.55073
51.489695 -0.550729
51.489695 -0.550728
51.48975 -0.550537
51.489751 -0.550532
51.489835 -0.550241
51.489841 -0.550217
51.489843 -0.55021

Segment 3

7 coordinate pairs

Description: M4 eastbound within J5
Carriageway: Dual Carriageway
Lane Usage: Cl4
Lane Number: 4
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 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: 190 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
51.492549 -0.538913

Segment 4

4 coordinate pairs

Description: M4 eastbound within J5
Carriageway: Dual Carriageway
Lane Usage: Cl4
Lane Number: 4
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 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

27 coordinate pairs

Description: M4 eastbound between J6 and J5
Carriageway: Dual Carriageway
Lane Usage: Cl4
Lane Number: 4
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: {068C0EB9-E240-4DFE-B996-F6E071EDD4E5}
Linear Element Type: B Carriageway
From Distance: 254 m
To Distance: 1,437 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.49567 -0.58536
51.495047 -0.584738
51.494646 -0.584351
51.494236 -0.583956
51.494164 -0.583886
51.493472 -0.583202
51.493008 -0.582747
51.492817 -0.582559
51.492608 -0.582335
51.492371 -0.582112
51.492116 -0.581861
51.491698 -0.581427
51.491232 -0.58088
51.490877 -0.580459
51.490776 -0.580318
51.490319 -0.579684
51.490044 -0.579275
51.489741 -0.578766
51.489392 -0.578143
51.489115 -0.577604
51.488931 -0.577235
51.488672 -0.576667
51.488385 -0.575985
51.488209 -0.5755
51.488088 -0.575187
51.487976 -0.574874
51.487803 -0.574323

Segment 6

6 coordinate pairs

Description: M4 eastbound within J5
Carriageway: Dual Carriageway
Lane Usage: Cl4
Lane Number: 4
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 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

Geometry type: MultiLineString
Geometry points: 100
First coordinate pair: -0.550210, 51.489843
Road section segments: 1
Road section points: 100

View geometry JSON

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View road section coordinates

Cause type: Road Maintenance
Detailed cause: Repair Work
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Other