M4 eastbound Jct 5 entry slip road lane closures

Cleared

M4 eastbound Jct 5 entry slip road lane closures

Start time
Tue, Aug 18, 2026 7:04 PM
Expected end
Wed, Aug 19, 2026 5:00 AM
Duration
5 hours 26 minutes 1 second
Road
M4 – M4 J5 Eastbound Access
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Lanes affected
Lane 1 closed, 1 of 2 lanes affected
Reason
Roadworks
Live incident
Active roadworks
Planned
Cleared
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First published
Tue, Aug 18, 2026 9:20 PM
Last updated
Wed, Aug 19, 2026 12:08 AM
Cleared
Wed, Aug 19, 2026 12:30 AM
  • Latest update: M4 eastbound Jct 5 entry slip road lane closures
Coordinates
51.492913, -0.536783
Latitude span
51.492385 – 51.493210
Longitude span
-0.542003 – -0.533237
Bounding box centre
51.492798, -0.537620
Location descriptions
  • M4 J5 eastbound access
  • M4 eastbound between J5 and J4B
Feed validity status
Active
Overall feed start
Tue, Aug 18, 2026 7:04 PM
Overall feed end
Wed, Aug 19, 2026 5:00 AM
Feed window length
9 hours 56 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

16 coordinate pairs
Description
M4 J5 eastbound access
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
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
{00D2BB02-5F43-4EB3-9D03-C3E7144BB4AC}
Linear Element Type
B Carriageway Entry Slip
From Distance
15 m
To Distance
629 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.492385 -0.542003
51.492433 -0.541704
51.492491 -0.541241
51.492499 -0.541169
51.492644 -0.539868
51.49271 -0.539347
51.492733 -0.539044
51.492928 -0.537395
51.493032 -0.536355
51.493066 -0.535735
51.493072 -0.535659
51.493106 -0.535179
51.493148 -0.534454
51.49321 -0.533415
51.493176 -0.53328
51.493176 -0.533279

Segment 2

3 coordinate pairs
Description
M4 eastbound between J5 and J4B
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
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
{2D7FBEAA-7E69-47DC-8335-F678E9006D5D}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
2 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.493176 -0.533279
51.493179 -0.53324
51.493179 -0.533237
Geometry type
MultiLineString
Geometry points
19
First coordinate pair
-0.542003, 51.492385
Road section segments
1
Road section points
19
View geometry JSON
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.542003,
                51.492385
            ],
            [
                -0.541704,
                51.492433
            ],
            [
                -0.541241,
                51.492491
            ],
            [
                -0.541169,
                51.492499
            ],
            [
                -0.539868,
                51.492644
            ],
            [
                -0.539347,
                51.49271
            ],
            [
                -0.539044,
                51.492733
            ],
            [
                -0.537395,
                51.492928
            ],
            [
                -0.536355,
                51.493032
            ],
            [
                -0.535735,
                51.493066
            ],
            [
                -0.535659,
                51.493072
            ],
            [
                -0.535179,
                51.493106
            ],
            [
                -0.534454,
                51.493148
            ],
            [
                -0.533415,
                51.49321
            ],
            [
                -0.53328,
                51.493176
            ],
            [
                -0.533279,
                51.493176
            ],
            [
                -0.533279,
                51.493176
            ],
            [
                -0.53324,
                51.493179
            ],
            [
                -0.533237,
                51.493179
            ]
        ]
    ]
}
View road section coordinates
[
    [
        [
            -0.542003,
            51.492385
        ],
        [
            -0.541704,
            51.492433
        ],
        [
            -0.541241,
            51.492491
        ],
        [
            -0.541169,
            51.492499
        ],
        [
            -0.539868,
            51.492644
        ],
        [
            -0.539347,
            51.49271
        ],
        [
            -0.539044,
            51.492733
        ],
        [
            -0.537395,
            51.492928
        ],
        [
            -0.536355,
            51.493032
        ],
        [
            -0.535735,
            51.493066
        ],
        [
            -0.535659,
            51.493072
        ],
        [
            -0.535179,
            51.493106
        ],
        [
            -0.534454,
            51.493148
        ],
        [
            -0.533415,
            51.49321
        ],
        [
            -0.53328,
            51.493176
        ],
        [
            -0.533279,
            51.493176
        ],
        [
            -0.533279,
            51.493176
        ],
        [
            -0.53324,
            51.493179
        ],
        [
            -0.533237,
            51.493179
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Roadworks
Compliance
Mandatory
Probability
Certain
Validity status
Active
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
2
Record created
Tue, Aug 18, 2026 9:20 PM
Record versioned
Wed, Aug 19, 2026 12:08 AM
Coordinate source
Geometry

Driving on the M4? See every live closure, roadwork and planned restriction on this road.

M4 live closures

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