M4 eastbound Jct 17 to 16 - lane closure

Cleared

Start time: Thu, Sep 24, 2026 7:46 PM
Expected end: Fri, Sep 25, 2026 4:00 AM
Duration: 5 hours 4 minutes 2 seconds
Road: M4 – M4 Eastbound Between J17 And J16
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 1 of 3 lanes affected
Reason: Maintenance Work

Live incident

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Cleared

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First published: Thu, Sep 24, 2026 7:46 PM
Last updated: Fri, Sep 25, 2026 12:32 AM
Cleared: Fri, Sep 25, 2026 12:50 AM

Latest update: M4 eastbound Jct 17 to 16 - lane closure

Coordinates: 51.550141, -1.935284
Latitude span: 51.547430 – 51.555457
Longitude span: -1.950944 – -1.919360
Bounding box centre: 51.551444, -1.935152
Location descriptions: M4 eastbound between J17 and J16

Feed validity status: Active
Overall feed start: Thu, Sep 24, 2026 7:46 PM
Overall feed end: Fri, Sep 25, 2026 4:00 AM
Feed window length: 8 hours 14 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

14 coordinate pairs

Description: M4 eastbound between J17 and J16
Carriageway: Dual Carriageway
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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: {48CEF848-3585-4F3B-84FB-85895762B67B}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 838 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.548752 -1.93891
51.548801 -1.938609
51.548963 -1.937787
51.549232 -1.936488
51.549591 -1.93493
51.549644 -1.934714
51.550156 -1.932723
51.550371 -1.931944
51.550551 -1.931338
51.550651 -1.930998
51.550919 -1.930082
51.551161 -1.929274
51.55161 -1.927976
51.551678 -1.927792

Segment 2

8 coordinate pairs

Description: M4 eastbound between J17 and J16
Carriageway: Dual Carriageway
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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: {78EAEC76-F386-406C-9636-812253624718}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 721 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.551678 -1.927792
51.552364 -1.925941
51.552938 -1.924555
51.553325 -1.92366
51.554079 -1.922044
51.55486 -1.920485
51.554896 -1.920413
51.555457 -1.91936

Segment 3

13 coordinate pairs

Description: M4 eastbound between J17 and J16
Carriageway: Dual Carriageway
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 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: {83F15CE1-F43D-4701-B98F-C442CCA10D5E}
Linear Element Type: B Carriageway
From Distance: 340 m
To Distance: 1,189 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.54743 -1.950944
51.547431 -1.950912
51.547476 -1.949859
51.547583 -1.947941
51.547636 -1.947321
51.547665 -1.947018
51.547798 -1.945605
51.547986 -1.943888
51.548129 -1.942852
51.548353 -1.941234
51.548469 -1.940484
51.548532 -1.940152
51.548752 -1.93891

Geometry type: MultiLineString
Geometry points: 35
First coordinate pair: -1.938910, 51.548752
Road section segments: 1
Road section points: 35

View geometry JSON

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}

View road section coordinates

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