Crash View

A421 eastbound Renhold to Black Cat roundabout (MP 27/0 - 27/5)- lane 2 closure

Cleared

A421 eastbound Renhold to Black Cat roundabout (MP 27/0 - 27/5)- lane 2 closure

Start time
Mon, Aug 18, 2025 4:00 AM
Expected end
Wed, Mar 31, 2027 10:59 PM
Duration
1 year 1 month 3 weeks
Road
A421 – A421 Northbound Between A4280 And A1
Category
Construction Work
Direction
Eastbound
Carriageway
Dual Carriageway
Lanes affected
Lane 2 closed, 1 of 2 lanes affected
Reason
Road Improvement Or Upgrading
Live incident
Active roadworks
Planned
Cleared
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First published
Thu, Aug 6, 2026 1:20 PM
Last updated
Mon, Oct 12, 2026 4:11 PM
Cleared
Mon, Oct 12, 2026 4:35 PM
  • Latest update: A421 eastbound Renhold to Black Cat roundabout (MP 27/0 - 27/5)- lane 2 closure
Coordinates
52.183127, -0.313616
Latitude span
52.177965 – 52.184942
Longitude span
-0.323407 – -0.305896
Bounding box centre
52.181454, -0.314652
Location descriptions
  • A421 northbound between A4280 and A1
  • roundabout at A1/A421
Feed validity status
Planned
Overall feed start
Mon, Aug 18, 2025 4:00 AM
Overall feed end
Wed, Mar 31, 2027 10:59 PM
Feed window length
1 year 7 months 1 week
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

10 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
A421
Linear Element Model
The Network Model
Linear Element Id
{5D5E96DF-FA06-4427-9F9C-7D7219175255}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
954 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.178954 -0.322234
52.180692 -0.320206
52.181646 -0.319086
52.182718 -0.317413
52.183046 -0.3168
52.183628 -0.315511
52.184047 -0.314303
52.184361 -0.313239
52.184586 -0.312307
52.184614 -0.312151

Segment 2

3 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
A421
Linear Element Model
The Network Model
Linear Element Id
{0DF6F4C3-B339-F51E-C116-04F171D5DBE1}
Linear Element Type
A Carriageway
From Distance
656 m
To Distance
792 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.177965 -0.323407
52.178686 -0.322547
52.178954 -0.322234

Segment 3

2 coordinate pairs
Description
roundabout at A1/A421
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
2 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A1
Linear Element Model
The Network Model
Linear Element Id
{82E947A7-0D56-4064-BA0D-43CE06A4064C}
Linear Element Type
Other
From Distance
0 m
To Distance
4 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.184742 -0.305928
52.184777 -0.305896

Segment 4

8 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
A421
Linear Element Model
The Network Model
Linear Element Id
{10BD84F2-0C28-4FE4-8522-71B850B6E7A9}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
431 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.184614 -0.312151
52.184761 -0.311173
52.184896 -0.31004
52.18493 -0.309147
52.184942 -0.308127
52.184876 -0.307238
52.184734 -0.306095
52.184742 -0.305928
Geometry type
MultiLineString
Geometry points
23
First coordinate pair
-0.322234, 52.178954
Road section segments
1
Road section points
23
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.322234,
                52.178954
            ],
            [
                -0.320206,
                52.180692
            ],
            [
                -0.319086,
                52.181646
            ],
            [
                -0.317413,
                52.182718
            ],
            [
                -0.3168,
                52.183046
            ],
            [
                -0.315511,
                52.183628
            ],
            [
                -0.314303,
                52.184047
            ],
            [
                -0.313239,
                52.184361
            ],
            [
                -0.312307,
                52.184586
            ],
            [
                -0.312151,
                52.184614
            ],
            [
                -0.323407,
                52.177965
            ],
            [
                -0.322547,
                52.178686
            ],
            [
                -0.322234,
                52.178954
            ],
            [
                -0.305928,
                52.184742
            ],
            [
                -0.305896,
                52.184777
            ],
            [
                -0.312151,
                52.184614
            ],
            [
                -0.311173,
                52.184761
            ],
            [
                -0.31004,
                52.184896
            ],
            [
                -0.309147,
                52.18493
            ],
            [
                -0.308127,
                52.184942
            ],
            [
                -0.307238,
                52.184876
            ],
            [
                -0.306095,
                52.184734
            ],
            [
                -0.305928,
                52.184742
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            -0.322234,
            52.178954
        ],
        [
            -0.320206,
            52.180692
        ],
        [
            -0.319086,
            52.181646
        ],
        [
            -0.317413,
            52.182718
        ],
        [
            -0.3168,
            52.183046
        ],
        [
            -0.315511,
            52.183628
        ],
        [
            -0.314303,
            52.184047
        ],
        [
            -0.313239,
            52.184361
        ],
        [
            -0.312307,
            52.184586
        ],
        [
            -0.312151,
            52.184614
        ],
        [
            -0.323407,
            52.177965
        ],
        [
            -0.322547,
            52.178686
        ],
        [
            -0.322234,
            52.178954
        ],
        [
            -0.305928,
            52.184742
        ],
        [
            -0.305896,
            52.184777
        ],
        [
            -0.312151,
            52.184614
        ],
        [
            -0.311173,
            52.184761
        ],
        [
            -0.31004,
            52.184896
        ],
        [
            -0.309147,
            52.18493
        ],
        [
            -0.308127,
            52.184942
        ],
        [
            -0.307238,
            52.184876
        ],
        [
            -0.306095,
            52.184734
        ],
        [
            -0.305928,
            52.184742
        ]
    ]
]
Cause type
Construction Work
Detailed cause
Road Improvement Or Upgrading
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Thu, Aug 6, 2026 1:20 PM
Record versioned
Mon, Oct 12, 2026 4:11 PM
Coordinate source
Geometry

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