M1 Northbound Jct 4 entry slip road lane 1 closure

Planned

Start time: Thu, Aug 13, 2026 9:00 PM
Expected end: Fri, Aug 14, 2026 4:30 AM
Duration: 7 hours 30 minutes
Road: M1 – Link Road From A41 Westbound To M1 Northbound
Category: Road Maintenance
Direction: Northbound
Carriageway: Dual Carriageway
Lanes affected: 1 of 2 lanes affected, 1 of 3 lanes affected
Reason: Other

Live incident

Active roadworks

Planned

Cleared

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First published: Wed, Jun 17, 2026 1:27 PM
Last updated: Thu, Aug 13, 2026 11:42 AM
Cleared: Fri, Aug 14, 2026 4:30 AM

Latest update: M1 Northbound Jct 4 entry slip road lane 1 closure

Coordinates: 51.635691, -0.304316
Latitude span: 51.634192 – 51.637013
Longitude span: -0.308470 – -0.301278
Bounding box centre: 51.635603, -0.304874
Location descriptions: link road from A41 westbound to M1 northbound

M1 northbound between J4 and J5

Feed validity status: Planned
Overall feed start: Thu, Aug 13, 2026 9:00 PM
Overall feed end: Fri, Aug 14, 2026 4:30 AM
Feed window length: 7 hours 30 minutes
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

4 coordinate pairs

Description: link road from A41 westbound to M1 northbound
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M1
Linear Element Model: The Network Model
Linear Element Id: {4C95ADAA-8B85-4241-BBCA-2B4F94C7AF22}
Linear Element Type: A Carriageway Entry Slip
From Distance: 0 m
To Distance: 173 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.635958 -0.304693
51.635963 -0.304711
51.636156 -0.30538
51.636588 -0.306983

Segment 2

12 coordinate pairs

Description: link road from A41 westbound to M1 northbound
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M1
Linear Element Model: The Network Model
Linear Element Id: {EE95C14C-6582-469F-9D01-5D4FA356824D}
Linear Element Type: A Carriageway Entry Slip
From Distance: 59 m
To Distance: 374 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.634192 -0.301278
51.634391 -0.301457
51.6345 -0.301554
51.634729 -0.30182
51.63494 -0.302101
51.635014 -0.302214
51.635254 -0.302653
51.635477 -0.303165
51.635626 -0.30355
51.635777 -0.304021
51.635946 -0.304653
51.635958 -0.304693

Segment 3

4 coordinate pairs

Description: M1 northbound between J4 and J5
Carriageway: Dual Carriageway
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End2
Linear Element Road: M1
Linear Element Model: The Network Model
Linear Element Id: {059F883C-ACC1-4B80-942C-DA9AD84B4B5F}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 113 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.636588 -0.306983
51.636745 -0.307511
51.637001 -0.308426
51.637013 -0.30847

Geometry type: MultiLineString
Geometry points: 20
First coordinate pair: -0.304693, 51.635958
Road section segments: 1
Road section points: 20

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.304693,
                51.635958
            ],
            [
                -0.304711,
                51.635963
            ],
            [
                -0.30538,
                51.636156
            ],
            [
                -0.306983,
                51.636588
            ],
            [
                -0.301278,
                51.634192
            ],
            [
                -0.301457,
                51.634391
            ],
            [
                -0.301554,
                51.6345
            ],
            [
                -0.30182,
                51.634729
            ],
            [
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            ],
            [
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            ],
            [
                -0.302653,
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            ],
            [
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                51.635477
            ],
            [
                -0.30355,
                51.635626
            ],
            [
                -0.304021,
                51.635777
            ],
            [
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            ],
            [
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            ],
            [
                -0.306983,
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            ],
            [
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            ],
            [
                -0.308426,
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            ],
            [
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            ]
        ]
    ]
}

View road section coordinates

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