M4 westbound Jct 14 taper (102/7)

Cleared

Start time: Mon, Sep 28, 2026 7:00 PM
Expected end: Tue, Sep 29, 2026 5:00 AM
Duration: 1 hour 15 minutes 2 seconds
Road: M4 – M4 Westbound Between J13 And J14
Category: Road Maintenance
Direction: Westbound
Carriageway: Dual Carriageway
Lanes affected: Lane 2 closed, 1 of 3 lanes affected
Reason: Roadworks

Live incident

Active roadworks

Planned

Cleared

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First published: Wed, Sep 16, 2026 8:21 AM
Last updated: Mon, Sep 28, 2026 7:40 PM
Cleared: Mon, Sep 28, 2026 8:15 PM

Latest update: M4 westbound Jct 14 taper (102/7)

Coordinates: 51.450019, -1.470844
Latitude span: 51.448896 – 51.450801
Longitude span: -1.474551 – -1.465037
Bounding box centre: 51.449849, -1.469794
Location descriptions: M4 westbound between J13 and J14

Feed validity status: Planned
Overall feed start: Mon, Sep 28, 2026 7:00 PM
Overall feed end: Tue, Sep 29, 2026 5:00 AM
Feed window length: 10 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

7 coordinate pairs

Description: M4 westbound between J13 and J14
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 operational lanes
Direction On Section: West Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {011661F7-C520-4569-B274-FF18ACEB9684}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 101 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.450496 -1.473179
51.450496 -1.47318
51.450499 -1.473196
51.450563 -1.473512
51.450657 -1.473913
51.450664 -1.473942
51.450801 -1.474551

Segment 2

11 coordinate pairs

Description: M4 westbound between J13 and J14
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 operational lanes
Direction On Section: West Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {1BC83187-0ACB-4149-A643-855C01132B1A}
Linear Element Type: A Carriageway
From Distance: 1,269 m
To Distance: 1,863 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.448896 -1.465037
51.448943 -1.465328
51.449054 -1.466017
51.449297 -1.467353
51.449368 -1.467741
51.449598 -1.468932
51.449791 -1.469923
51.450154 -1.47166
51.450233 -1.472033
51.450344 -1.472521
51.450496 -1.473179

Geometry type: MultiLineString
Geometry points: 18
First coordinate pair: -1.473179, 51.450496
Road section segments: 1
Road section points: 18

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -1.473179,
                51.450496
            ],
            [
                -1.47318,
                51.450496
            ],
            [
                -1.473196,
                51.450499
            ],
            [
                -1.473512,
                51.450563
            ],
            [
                -1.473913,
                51.450657
            ],
            [
                -1.473942,
                51.450664
            ],
            [
                -1.474551,
                51.450801
            ],
            [
                -1.465037,
                51.448896
            ],
            [
                -1.465328,
                51.448943
            ],
            [
                -1.466017,
                51.449054
            ],
            [
                -1.467353,
                51.449297
            ],
            [
                -1.467741,
                51.449368
            ],
            [
                -1.468932,
                51.449598
            ],
            [
                -1.469923,
                51.449791
            ],
            [
                -1.47166,
                51.450154
            ],
            [
                -1.472033,
                51.450233
            ],
            [
                -1.472521,
                51.450344
            ],
            [
                -1.473179,
                51.450496
            ]
        ]
    ]
}

View road section coordinates

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