M4 Eastbound Jct 4B entry slip road Lane 1 Closure

Cleared

Start time: Sat, Nov 15, 2025 10:00 PM
Expected end: Sun, Nov 16, 2025 6:00 AM
Duration: 8 hours
Road: M4 – Link Road From M25 J15 To M4 J4B Eastbound
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 1 of 2 lanes affected, 1 of 4 lanes affected
Reason: Roadworks

Active

Planned

Cleared

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First published: Tue, Nov 4, 2025 10:45 AM
Last updated: Sun, Nov 16, 2025 12:03 AM
Cleared: Sun, Nov 16, 2025 6:00 AM

Latest update: M4 Eastbound Jct 4B entry slip road Lane 1 Closure

Coordinates: 51.494938, -0.486543
Latitude span: 51.494520 – 51.495945
Longitude span: -0.490662 – -0.478736
Bounding box centre: 51.495233, -0.484699
Location descriptions: link road from M25 J15 to M4 J4B eastbound

M4 eastbound between J4B and J4

Feed validity status: Suspended
Overall feed start: Sat, Nov 15, 2025 10:00 PM
Overall feed end: Sun, Nov 16, 2025 6:00 AM
Feed window length: 8 hours
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: link road from M25 J15 to M4 J4B eastbound
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: {7DEB761D-8486-4828-8CF6-58B726C5A28E}
Linear Element Type: B Carriageway Exit Slip
From Distance: 23 m
To Distance: 130 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.495945 -0.490662
51.495823 -0.490496
51.49539 -0.489733
51.495317 -0.489591
51.495289 -0.489533

Segment 2

19 coordinate pairs

Description: link road from M25 J15 to M4 J4B eastbound
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: {240D0741-1C89-4FFD-80CD-BF4A5CDA04E4}
Linear Element Type: B Carriageway Exit Slip
From Distance: 0 m
To Distance: 727 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.495289 -0.489533
51.495224 -0.489393
51.495132 -0.48918
51.495038 -0.488938
51.49501 -0.488852
51.494955 -0.48871
51.494926 -0.488596
51.494869 -0.488353
51.494821 -0.488124
51.494782 -0.487851
51.49473 -0.487363
51.494695 -0.486687
51.494682 -0.486371
51.494632 -0.485335
51.494604 -0.484558
51.494563 -0.482759
51.494537 -0.481593
51.494543 -0.480623
51.49452 -0.479278

Segment 3

2 coordinate pairs

Description: M4 eastbound between J4B and J4
Carriageway: Dual Carriageway
Lanes Restricted: 1 lane restricted
Operational Lanes: 4 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: {6C74E352-01F1-450C-B9F1-385A3B48DFE5}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 37 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.49452 -0.479278
51.494543 -0.478736

Geometry type: MultiLineString
Geometry points: 26
First coordinate pair: -0.490662, 51.495945
Road section segments: 1
Road section points: 26

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.490662,
                51.495945
            ],
            [
                -0.490496,
                51.495823
            ],
            [
                -0.489733,
                51.49539
            ],
            [
                -0.489591,
                51.495317
            ],
            [
                -0.489533,
                51.495289
            ],
            [
                -0.489533,
                51.495289
            ],
            [
                -0.489393,
                51.495224
            ],
            [
                -0.48918,
                51.495132
            ],
            [
                -0.488938,
                51.495038
            ],
            [
                -0.488852,
                51.49501
            ],
            [
                -0.48871,
                51.494955
            ],
            [
                -0.488596,
                51.494926
            ],
            [
                -0.488353,
                51.494869
            ],
            [
                -0.488124,
                51.494821
            ],
            [
                -0.487851,
                51.494782
            ],
            [
                -0.487363,
                51.49473
            ],
            [
                -0.486687,
                51.494695
            ],
            [
                -0.486371,
                51.494682
            ],
            [
                -0.485335,
                51.494632
            ],
            [
                -0.484558,
                51.494604
            ],
            [
                -0.482759,
                51.494563
            ],
            [
                -0.481593,
                51.494537
            ],
            [
                -0.480623,
                51.494543
            ],
            [
                -0.479278,
                51.49452
            ],
            [
                -0.479278,
                51.49452
            ],
            [
                -0.478736,
                51.494543
            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Roadworks
Compliance: Mandatory
Probability: Certain
Validity status: Suspended
Road management: Other