M4 Eastbound Jct 20 to Jct 19 lane 1 closure

Cleared

Start time: Tue, Oct 6, 2026 6:43 PM
Expected end: Wed, Oct 7, 2026 5:00 AM
Duration: 3 hours 27 minutes 1 second
Road: M4 – M4 Eastbound Between J20 And J19
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: Lane 1 closed, 1 of 3 lanes affected
Reason: Repair Work

Live incident

Active roadworks

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Cleared

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First published: Tue, Oct 6, 2026 6:56 PM
Last updated: Tue, Oct 6, 2026 9:37 PM
Cleared: Tue, Oct 6, 2026 10:10 PM

Latest update: M4 Eastbound Jct 20 to Jct 19 lane 1 closure

Coordinates: 51.523929, -2.526246
Latitude span: 51.521290 – 51.526578
Longitude span: -2.528580 – -2.523991
Bounding box centre: 51.523934, -2.526286
Location descriptions: M4 eastbound between J20 and J19

Feed validity status: Active
Overall feed start: Tue, Oct 6, 2026 6:43 PM
Overall feed end: Wed, Oct 7, 2026 5:00 AM
Feed window length: 10 hours 17 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 J20 and J19
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 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: 537 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.525558 -2.527632
51.523052 -2.525472
51.522132 -2.524679
51.521529 -2.524186
51.52129 -2.523991

Segment 2

3 coordinate pairs

Description: M4 eastbound between J20 and J19
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: {85AC09F6-96DE-494F-B2A9-C8AA2E3DFACC}
Linear Element Type: B Carriageway
From Distance: 2,212 m
To Distance: 2,343 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.526578 -2.52858
51.525734 -2.527798
51.525558 -2.527632

Geometry type: MultiLineString
Geometry points: 8
First coordinate pair: -2.527632, 51.525558
Road section segments: 1
Road section points: 8

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -2.527632,
                51.525558
            ],
            [
                -2.525472,
                51.523052
            ],
            [
                -2.524679,
                51.522132
            ],
            [
                -2.524186,
                51.521529
            ],
            [
                -2.523991,
                51.52129
            ],
            [
                -2.52858,
                51.526578
            ],
            [
                -2.527798,
                51.525734
            ],
            [
                -2.527632,
                51.525558
            ]
        ]
    ]
}

View road section coordinates

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