M40 northbound, Jct 4 A404 entry slip road closure

Planned

M40 northbound, Jct 4 A404 entry slip road closure

Start time
Mon, Aug 3, 2026 9:15 PM
Expected end
Tue, Aug 4, 2026 5:00 AM
Duration
7 hours 45 minutes
Road
M40 – M40 J4 Northbound Access
Category
Road Maintenance
Direction
Northbound
Carriageway
Dual Carriageway
Reason
Roadworks
Live incident
Active roadworks
Planned
Cleared
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First published
Thu, Nov 20, 2025 11:41 AM
Last updated
Mon, Aug 3, 2026 4:59 AM
Cleared
Tue, Aug 4, 2026 5:00 AM
  • Latest update: M40 northbound, Jct 4 A404 entry slip road closure
Coordinates
51.610865, -0.771283
Latitude span
51.609375 – 51.611449
Longitude span
-0.779575 – -0.766885
Bounding box centre
51.610412, -0.773230
Location descriptions
  • M40 J4 northbound access
  • fast slip from A404 northbound to M40 northbound
  • M40 northbound between J4 and J5
Feed validity status
Planned
Overall feed start
Mon, Aug 3, 2026 9:15 PM
Overall feed end
Tue, Aug 4, 2026 5:00 AM
Feed window length
7 hours 45 minutes
Probability code (raw)
probable
Compliance option (raw)
mandatory
Source identification (raw)
roadworks
Management type value
carriagewayClosures (Carriageway Closures)
Contra-flow flag (raw)
false
Width restriction flag (raw)
false
Height restriction flag (raw)
false
Weight restriction flag (raw)
false

Segment 1

9 coordinate pairs
Description
M40 J4 northbound access
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{2F748F94-9B37-46EB-9B8C-C99FA19BE76C}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
346 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.611092 -0.768883
51.611166 -0.769063
51.611283 -0.769481
51.611401 -0.770059
51.611445 -0.770679
51.611449 -0.771039
51.611429 -0.771561
51.611322 -0.772626
51.611251 -0.773749

Segment 2

3 coordinate pairs
Description
M40 J4 northbound access
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{552A0987-1C8D-49ED-88E4-F2B2640C49E6}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
181 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.611251 -0.773749
51.611239 -0.773842
51.610959 -0.776334

Segment 3

7 coordinate pairs
Description
fast slip from A404 northbound to M40 northbound
Lanes Restricted
1 lane restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{7572A8AF-1A04-4C52-B303-50C1A6262A34}
Linear Element Type
Other
From Distance
12 m
To Distance
253 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.609375 -0.766885
51.60946 -0.766985
51.609905 -0.767234
51.610264 -0.767534
51.610567 -0.767897
51.610891 -0.768389
51.611092 -0.768883

Segment 4

3 coordinate pairs
Description
M40 northbound between J4 and J5
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{71756514-1807-4679-B50E-DC12A2CA08FD}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
231 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.610959 -0.776334
51.610782 -0.777451
51.610449 -0.779575
Geometry type
MultiLineString
Geometry points
22
First coordinate pair
-0.768883, 51.611092
Road section segments
1
Road section points
22
View geometry JSON
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.768883,
                51.611092
            ],
            [
                -0.769063,
                51.611166
            ],
            [
                -0.769481,
                51.611283
            ],
            [
                -0.770059,
                51.611401
            ],
            [
                -0.770679,
                51.611445
            ],
            [
                -0.771039,
                51.611449
            ],
            [
                -0.771561,
                51.611429
            ],
            [
                -0.772626,
                51.611322
            ],
            [
                -0.773749,
                51.611251
            ],
            [
                -0.773749,
                51.611251
            ],
            [
                -0.773842,
                51.611239
            ],
            [
                -0.776334,
                51.610959
            ],
            [
                -0.766885,
                51.609375
            ],
            [
                -0.766985,
                51.60946
            ],
            [
                -0.767234,
                51.609905
            ],
            [
                -0.767534,
                51.610264
            ],
            [
                -0.767897,
                51.610567
            ],
            [
                -0.768389,
                51.610891
            ],
            [
                -0.768883,
                51.611092
            ],
            [
                -0.776334,
                51.610959
            ],
            [
                -0.777451,
                51.610782
            ],
            [
                -0.779575,
                51.610449
            ]
        ]
    ]
}
View road section coordinates
[
    [
        [
            -0.768883,
            51.611092
        ],
        [
            -0.769063,
            51.611166
        ],
        [
            -0.769481,
            51.611283
        ],
        [
            -0.770059,
            51.611401
        ],
        [
            -0.770679,
            51.611445
        ],
        [
            -0.771039,
            51.611449
        ],
        [
            -0.771561,
            51.611429
        ],
        [
            -0.772626,
            51.611322
        ],
        [
            -0.773749,
            51.611251
        ],
        [
            -0.773749,
            51.611251
        ],
        [
            -0.773842,
            51.611239
        ],
        [
            -0.776334,
            51.610959
        ],
        [
            -0.766885,
            51.609375
        ],
        [
            -0.766985,
            51.60946
        ],
        [
            -0.767234,
            51.609905
        ],
        [
            -0.767534,
            51.610264
        ],
        [
            -0.767897,
            51.610567
        ],
        [
            -0.768389,
            51.610891
        ],
        [
            -0.768883,
            51.611092
        ],
        [
            -0.776334,
            51.610959
        ],
        [
            -0.777451,
            51.610782
        ],
        [
            -0.779575,
            51.610449
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Roadworks
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
2
Record created
Thu, Nov 20, 2025 11:41 AM
Record versioned
Mon, Aug 3, 2026 4:59 AM
Coordinate source
Geometry

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