M4 eastbound Jct 17 to Jct 16 - lane 1 closure

Cleared

Start time: Thu, Sep 24, 2026 7:41 PM
Expected end: Fri, Sep 25, 2026 5:00 AM
Duration: 4 hours 19 minutes 2 seconds
Road: M4 – M4 Eastbound Between J17 And J16
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: Lane 1 closed, 1 of 3 lanes affected
Reason: Maintenance Work

Live incident

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First published: Thu, Sep 24, 2026 7:41 PM
Last updated: Thu, Sep 24, 2026 11:25 PM
Cleared: Fri, Sep 25, 2026 12:00 AM

Latest update: M4 eastbound Jct 17 to Jct 16 - lane 1 closure

Coordinates: 51.514611, -2.092887
Latitude span: 51.514421 – 51.514976
Longitude span: -2.105881 – -2.079092
Bounding box centre: 51.514699, -2.092487
Location descriptions: M4 eastbound between J17 and J16

Feed validity status: Active
Overall feed start: Thu, Sep 24, 2026 7:41 PM
Overall feed end: Fri, Sep 25, 2026 5:00 AM
Feed window length: 9 hours 19 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

19 coordinate pairs

Description: M4 eastbound between J17 and J16
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: {401B6C60-2D63-421E-A2CE-4EA399FE425F}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 1,249 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.514486 -2.09706
51.514463 -2.096173
51.514437 -2.094987
51.514427 -2.093882
51.514421 -2.092726
51.514427 -2.091579
51.514434 -2.090441
51.514439 -2.089932
51.514461 -2.088753
51.514485 -2.087873
51.514515 -2.086933
51.514558 -2.085829
51.514608 -2.084765
51.51467 -2.083645
51.514715 -2.082823
51.514772 -2.08179
51.514849 -2.080705
51.514923 -2.07971
51.514976 -2.079092

Segment 2

12 coordinate pairs

Description: M4 eastbound between J17 and J16
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: {256B64BE-5ED6-4B31-B8C7-B7FD14C90FBF}
Linear Element Type: B Carriageway
From Distance: 532 m
To Distance: 1,146 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.51495 -2.105881
51.514909 -2.105292
51.51476 -2.102937
51.514716 -2.102263
51.514657 -2.101366
51.514651 -2.101254
51.514618 -2.100635
51.51457 -2.099658
51.514534 -2.09866
51.514528 -2.098492
51.514492 -2.097293
51.514486 -2.09706

Geometry type: MultiLineString
Geometry points: 31
First coordinate pair: -2.097060, 51.514486
Road section segments: 1
Road section points: 31

View geometry JSON

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    "type": "MultiLineString",
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                -2.093882,
                51.514427
            ],
            [
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            [
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            [
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            [
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        ]
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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