Crash View

A12 northbound Jct 29 entry slip carriageway closure

Cleared

A12 northbound Jct 29 entry slip carriageway closure

Start time
Wed, Mar 4, 2026 9:00 PM
Expected end
Thu, Mar 5, 2026 5:00 AM
Duration
8 hours
Road
A12 – A12 Northbound Within The A120 Near Colchester (East) Junction
Category
Road Maintenance
Direction
Northbound
Carriageway
Dual Carriageway
Reason
Maintenance Work
Live incident
Active roadworks
Planned
Cleared
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First published
Wed, Mar 4, 2026 8:16 PM
Last updated
Thu, Mar 5, 2026 1:10 AM
Cleared
Thu, Mar 5, 2026 5:00 AM
  • Latest update: A12 northbound Jct 29 entry slip carriageway closure
Coordinates
51.925911, 0.938352
Latitude span
51.922435 – 51.929588
Longitude span
0.934691 – 0.943344
Bounding box centre
51.926012, 0.939018
Location descriptions
  • A12 northbound within the A120 near Colchester (east) junction
  • A12 northbound access from A120 near Colchester (east)
  • A12 southbound within the A120 near Colchester (east) junction
  • A12 northbound between A120 near Colchester (east) and B1029
Feed validity status
Active
Overall feed start
Wed, Mar 4, 2026 9:00 PM
Overall feed end
Thu, Mar 5, 2026 5:00 AM
Feed window length
8 hours
Probability code (raw)
certain
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

20 coordinate pairs
Description
A12 northbound within the A120 near Colchester (east) junction
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{6D7FE6B7-DB59-415E-8A9F-6F434F274D54}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
548 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.924852 0.936019
51.925051 0.936189
51.925139 0.936282
51.925244 0.936391
51.92534 0.936513
51.925522 0.936773
51.925703 0.93709
51.925763 0.937225
51.925822 0.93736
51.92595 0.937659
51.926009 0.937823
51.926058 0.938015
51.926091 0.938119
51.926294 0.939005
51.926384 0.93936
51.926476 0.939657
51.926552 0.939851
51.926679 0.940165
51.926917 0.94069
51.927912 0.942028

Segment 2

10 coordinate pairs
Description
A12 northbound access from A120 near Colchester (east)
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{9DB9E026-CF35-4400-ACD9-8B733C5418C5}
Linear Element Type
A Carriageway Entry Slip
From Distance
8 m
To Distance
279 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.922435 0.934691
51.9226 0.934938
51.922671 0.935001
51.922732 0.935063
51.922768 0.93508
51.922901 0.935147
51.923113 0.935233
51.924512 0.935805
51.924601 0.935854
51.924717 0.935934

Segment 3

2 coordinate pairs
Description
A12 southbound within the A120 near Colchester (east) junction
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{75B1B94A-5BFB-48B9-B278-080110EC2DD6}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
16 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.924717 0.935934
51.924852 0.936019

Segment 4

5 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{071ACD65-A049-4626-A658-523ADFCD9B8C}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
150 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.927912 0.942028
51.928111 0.942222
51.928525 0.942599
51.928824 0.942836
51.929116 0.94303

Segment 5

4 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{A8CFE18D-1A79-4A73-9113-B67461F33F78}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
56 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.929116 0.94303
51.929302 0.943159
51.92947 0.943271
51.929588 0.943344
Geometry type
MultiLineString
Geometry points
41
First coordinate pair
0.936019, 51.924852
Road section segments
1
Road section points
41
View geometry JSON 
{
    "type": "MultiLineString",
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            [
                0.936019,
                51.924852
            ],
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                0.936189,
                51.925051
            ],
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                0.936282,
                51.925139
            ],
            [
                0.936391,
                51.925244
            ],
            [
                0.936513,
                51.92534
            ],
            [
                0.936773,
                51.925522
            ],
            [
                0.93709,
                51.925703
            ],
            [
                0.937225,
                51.925763
            ],
            [
                0.93736,
                51.925822
            ],
            [
                0.937659,
                51.92595
            ],
            [
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                51.926009
            ],
            [
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            ],
            [
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                51.926091
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            [
                0.939005,
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            [
                0.93936,
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            ],
            [
                0.939657,
                51.926476
            ],
            [
                0.939851,
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            ],
            [
                0.940165,
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            ],
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            ],
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            ],
            [
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            ],
            [
                0.935233,
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            ],
            [
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            ],
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            ],
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            ],
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            ],
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                0.936019,
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            ],
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                0.94303,
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            ],
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                0.94303,
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            ],
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            ],
            [
                0.943271,
                51.92947
            ],
            [
                0.943344,
                51.929588
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            0.936019,
            51.924852
        ],
        [
            0.936189,
            51.925051
        ],
        [
            0.936282,
            51.925139
        ],
        [
            0.936391,
            51.925244
        ],
        [
            0.936513,
            51.92534
        ],
        [
            0.936773,
            51.925522
        ],
        [
            0.93709,
            51.925703
        ],
        [
            0.937225,
            51.925763
        ],
        [
            0.93736,
            51.925822
        ],
        [
            0.937659,
            51.92595
        ],
        [
            0.937823,
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        ],
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            0.938015,
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        ],
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            0.938119,
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        ],
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            51.926294
        ],
        [
            0.93936,
            51.926384
        ],
        [
            0.939657,
            51.926476
        ],
        [
            0.939851,
            51.926552
        ],
        [
            0.940165,
            51.926679
        ],
        [
            0.94069,
            51.926917
        ],
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            0.942028,
            51.927912
        ],
        [
            0.934691,
            51.922435
        ],
        [
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        ],
        [
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            51.922671
        ],
        [
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            51.922732
        ],
        [
            0.93508,
            51.922768
        ],
        [
            0.935147,
            51.922901
        ],
        [
            0.935233,
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        ],
        [
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        ],
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        ],
        [
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        ],
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            51.924717
        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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            0.943271,
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        ],
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        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Maintenance Work
Compliance
Mandatory
Probability
Certain
Validity status
Active
Road management
Carriageway Closures
Feed region label
Colchester
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Wed, Mar 4, 2026 8:16 PM
Record versioned
Thu, Mar 5, 2026 1:10 AM
Coordinate source
Geometry

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