M4 Eastbound Jct 16 to 15 lane 1 closure 124/8b - 124/0b

Cleared

Start time: Tue, Sep 15, 2026 8:00 PM
Expected end: Wed, Sep 16, 2026 5:00 AM
Duration: 1 hour 5 minutes 2 seconds
Road: M4 – M4 Eastbound Between J16 And J15
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 1 of 3 lanes affected, 1 of 2 lanes affected
Reason: Maintenance Work

Live incident

Active roadworks

Planned

Cleared

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First published: Tue, Sep 15, 2026 7:30 AM
Last updated: Tue, Sep 15, 2026 8:23 PM
Cleared: Tue, Sep 15, 2026 9:05 PM

Latest update: M4 Eastbound Jct 16 to 15 lane 1 closure 124/8b - 124/0b

Coordinates: 51.528657, -1.737538
Latitude span: 51.527831 – 51.529388
Longitude span: -1.742584 – -1.731511
Bounding box centre: 51.528610, -1.737048
Location descriptions: M4 eastbound between J16 and J15

M4 J15 eastbound exit

Feed validity status: Planned
Overall feed start: Tue, Sep 15, 2026 8:00 PM
Overall feed end: Wed, Sep 16, 2026 5:00 AM
Feed window length: 9 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

11 coordinate pairs

Description: M4 eastbound between J16 and J15
Carriageway: Dual Carriageway
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: {95FB0BED-3A9B-4CB6-9376-26106669AB7B}
Linear Element Type: B Carriageway
From Distance: 531 m
To Distance: 1,226 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.529388 -1.742584
51.529301 -1.741904
51.529182 -1.74104
51.529163 -1.740896
51.529063 -1.740161
51.528773 -1.738303
51.52868 -1.737713
51.528571 -1.737079
51.528471 -1.736431
51.528197 -1.734703
51.527959 -1.732834

Segment 2

2 coordinate pairs

Description: M4 J15 eastbound exit
Lanes Restricted: 1 lane 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: {AF55EFAC-F2A6-45C0-86FD-2719C48C9653}
Linear Element Type: B Carriageway Exit Slip
From Distance: 0 m
To Distance: 92 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.527959 -1.732834
51.527831 -1.731511

Geometry type: MultiLineString
Geometry points: 13
First coordinate pair: -1.742584, 51.529388
Road section segments: 1
Road section points: 13

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -1.742584,
                51.529388
            ],
            [
                -1.741904,
                51.529301
            ],
            [
                -1.74104,
                51.529182
            ],
            [
                -1.740896,
                51.529163
            ],
            [
                -1.740161,
                51.529063
            ],
            [
                -1.738303,
                51.528773
            ],
            [
                -1.737713,
                51.52868
            ],
            [
                -1.737079,
                51.528571
            ],
            [
                -1.736431,
                51.528471
            ],
            [
                -1.734703,
                51.528197
            ],
            [
                -1.732834,
                51.527959
            ],
            [
                -1.732834,
                51.527959
            ],
            [
                -1.731511,
                51.527831
            ]
        ]
    ]
}

View road section coordinates

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