M4 Eastbound Jct 4 Exit Slip road Lane 3 closure

Cleared

Start time: Mon, Jun 15, 2026 9:00 PM
Expected end: Tue, Jun 16, 2026 4:30 AM
Duration: 6 hours 40 minutes 1 second
Road: M4 – M4 J4 Eastbound Exit
Category: Construction Work
Direction: Eastbound
Lanes affected: Lane 3 closed, 1 of 3 lanes affected
Reason: Construction Work

Live incident

Active roadworks

Planned

Cleared

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First published: Mon, Jun 15, 2026 8:52 PM
Last updated: Tue, Jun 16, 2026 3:23 AM
Cleared: Tue, Jun 16, 2026 3:40 AM

Latest update: M4 Eastbound Jct 4 Exit Slip road Lane 3 closure

Coordinates: 51.496028, -0.457771
Latitude span: 51.495939 – 51.496069
Longitude span: -0.459991 – -0.456644
Bounding box centre: 51.496004, -0.458318
Location descriptions: M4 J4 eastbound exit

Feed validity status: Active
Overall feed start: Mon, Jun 15, 2026 9:00 PM
Overall feed end: Tue, Jun 16, 2026 4:30 AM
Feed window length: 7 hours 30 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

4 coordinate pairs

Description: M4 J4 eastbound exit
Lane Usage: Cl3
Lane Number: 3
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: {D2E293B8-8CBA-4F5F-85DE-69A2856AE4C8}
Linear Element Type: B Carriageway Exit Slip
From Distance: 21 m
To Distance: 233 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.495939 -0.459991
51.496007 -0.458368
51.49603 -0.457751
51.49606 -0.456936

Segment 2

2 coordinate pairs

Description: M4 J4 eastbound exit
Lane Usage: Cl3
Lane Number: 3
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: Start2 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {DBD0FCC3-C6F7-4751-967E-6F69CEAE0724}
Linear Element Type: B Carriageway Exit Slip
From Distance: 0 m
To Distance: 20 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.49606 -0.456936
51.496069 -0.456644

Geometry type: MultiLineString
Geometry points: 6
First coordinate pair: -0.459991, 51.495939
Road section segments: 1
Road section points: 6

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.459991,
                51.495939
            ],
            [
                -0.458368,
                51.496007
            ],
            [
                -0.457751,
                51.49603
            ],
            [
                -0.456936,
                51.49606
            ],
            [
                -0.456936,
                51.49606
            ],
            [
                -0.456644,
                51.496069
            ]
        ]
    ]
}

View road section coordinates

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