M4 both directions Jct 16 to Jct 17 - hard shoulder only

Cleared

Start time: Mon, Aug 10, 2026 8:15 AM
Expected end: Mon, Aug 10, 2026 4:00 PM
Duration: 4 hours 50 minutes 1 second
Road: M4 – M4 Eastbound Between J17 And J16
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Reason: Maintenance Work

Live incident

Active roadworks

Planned

Cleared

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First published: Mon, Aug 10, 2026 8:28 AM
Last updated: Mon, Aug 10, 2026 12:44 PM
Cleared: Mon, Aug 10, 2026 1:05 PM

Latest update: M4 both directions Jct 16 to Jct 17 - hard shoulder only

Coordinates: 51.547064, -1.958268
Latitude span: 51.546031 – 51.547661
Longitude span: -1.967557 – -1.947061
Bounding box centre: 51.546846, -1.957309
Location descriptions: M4 eastbound between J17 and J16

Feed validity status: Active
Overall feed start: Mon, Aug 10, 2026 8:15 AM
Overall feed end: Mon, Aug 10, 2026 4:00 PM
Feed window length: 7 hours 45 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

8 coordinate pairs

Description: M4 eastbound between J17 and J16
Carriageway: Dual Carriageway
Lane Usage: Lh
Lane Number: 0
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 0 lanes restricted
Operational Lanes: 4 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start2 End2
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {6A5D848B-5980-4BD6-AD8E-BE2FFD49ED6C}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 293 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.547106 -1.960073
51.547218 -1.9587
51.547254 -1.958123
51.547281 -1.957748
51.547326 -1.956594
51.547345 -1.955891
51.547347 -1.955858
51.547347 -1.955855

Segment 2

4 coordinate pairs

Description: M4 eastbound between J17 and J16
Carriageway: Dual Carriageway
Lane Usage: Lh
Lane Number: 0
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 0 lanes restricted
Operational Lanes: 4 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: {5CD975B7-7328-47EF-BF84-9C1174C6F5C6}
Linear Element Type: B Carriageway
From Distance: 524 m
To Distance: 710 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.546031 -1.967557
51.546223 -1.966618
51.546447 -1.965334
51.54651 -1.964974

Segment 3

9 coordinate pairs

Description: M4 eastbound between J17 and J16
Carriageway: Dual Carriageway
Lane Usage: Lh
Lane Number: 0
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 0 lanes restricted
Operational Lanes: 4 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: {9B52E608-97DD-41CD-A994-7C87AB863CFA}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 346 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.54651 -1.964974
51.546519 -1.964923
51.546546 -1.964772
51.546725 -1.96356
51.546815 -1.962911
51.546887 -1.962248
51.54703 -1.960993
51.547075 -1.960445
51.547106 -1.960073

Segment 4

9 coordinate pairs

Description: M4 eastbound between J17 and J16
Carriageway: Dual Carriageway
Lane Usage: Lh
Lane Number: 0
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 0 lanes restricted
Operational Lanes: 4 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start2 End2
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {83F15CE1-F43D-4701-B98F-C442CCA10D5E}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 611 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.547347 -1.955855
51.547361 -1.955267
51.547377 -1.953941
51.547405 -1.951648
51.547431 -1.950912
51.547476 -1.949859
51.547583 -1.947941
51.547636 -1.947321
51.547661 -1.947061

Geometry type: MultiLineString
Geometry points: 30
First coordinate pair: -1.960073, 51.547106
Road section segments: 1
Road section points: 30

View geometry JSON

{
    "type": "MultiLineString",
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            [
                -1.960073,
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                51.547218
            ],
            [
                -1.958123,
                51.547254
            ],
            [
                -1.957748,
                51.547281
            ],
            [
                -1.956594,
                51.547326
            ],
            [
                -1.955891,
                51.547345
            ],
            [
                -1.955858,
                51.547347
            ],
            [
                -1.955855,
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            [
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            [
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            ],
            [
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            [
                -1.962911,
                51.546815
            ],
            [
                -1.962248,
                51.546887
            ],
            [
                -1.960993,
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            ],
            [
                -1.960445,
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            ],
            [
                -1.960073,
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            ],
            [
                -1.955855,
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            ],
            [
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            ],
            [
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            ],
            [
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            [
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            ],
            [
                -1.947321,
                51.547636
            ],
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            ]
        ]
    ]
}

View road section coordinates

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