M4 eastbound Jct 20 to Jct 19 lane 3&2 closure (184/1 to 183/1)

Cleared

Start time: Wed, Sep 23, 2026 8:44 PM
Expected end: Thu, Sep 24, 2026 5:00 AM
Duration: 4 hours 6 minutes 1 second
Road: M4 – M4 Eastbound Between J20 And J19
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 2 of 2 lanes affected
Reason: Maintenance Work

Live incident

Active roadworks

Planned

Cleared

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First published: Wed, Sep 23, 2026 8:44 PM
Last updated: Thu, Sep 24, 2026 12:33 AM
Cleared: Thu, Sep 24, 2026 12:50 AM

Latest update: M4 eastbound Jct 20 to Jct 19 lane 3&2 closure (184/1 to 183/1)

Coordinates: 51.527516, -2.529502
Latitude span: 51.523450 – 51.531254
Longitude span: -2.533069 – -2.525814
Bounding box centre: 51.527352, -2.529442
Location descriptions: M4 eastbound between J20 and J19

Feed validity status: Active
Overall feed start: Wed, Sep 23, 2026 8:44 PM
Overall feed end: Thu, Sep 24, 2026 5:00 AM
Feed window length: 8 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

2 coordinate pairs

Description: M4 eastbound between J20 and J19
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes 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: {4BCF2443-C5FD-4FF9-AA29-18986A140FEA}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 266 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.525558 -2.527632
51.52345 -2.525814

Segment 2

8 coordinate pairs

Description: M4 eastbound between J20 and J19
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 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: {85AC09F6-96DE-494F-B2A9-C8AA2E3DFACC}
Linear Element Type: B Carriageway
From Distance: 1,606 m
To Distance: 2,343 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.531254 -2.533069
51.53029 -2.532125
51.529295 -2.531162
51.528777 -2.53066
51.528527 -2.530417
51.526718 -2.52871
51.525734 -2.527798
51.525558 -2.527632

Geometry type: MultiLineString
Geometry points: 10
First coordinate pair: -2.527632, 51.525558
Road section segments: 1
Road section points: 10

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -2.527632,
                51.525558
            ],
            [
                -2.525814,
                51.52345
            ],
            [
                -2.533069,
                51.531254
            ],
            [
                -2.532125,
                51.53029
            ],
            [
                -2.531162,
                51.529295
            ],
            [
                -2.53066,
                51.528777
            ],
            [
                -2.530417,
                51.528527
            ],
            [
                -2.52871,
                51.526718
            ],
            [
                -2.527798,
                51.525734
            ],
            [
                -2.527632,
                51.525558
            ]
        ]
    ]
}

View road section coordinates

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