A12 both directions Jct 17 to Jct 11 mobile lane closures

Cleared

Start time: Wed, May 20, 2026 8:00 PM
Expected end: Thu, May 21, 2026 4:00 AM
Duration: 8 hours
Road: A12 – A12 Northbound Between B1002 And A414 Near Chelmsford (West)
Category: Road Maintenance
Direction: Northbound
Carriageway: Dual Carriageway
Reason: Maintenance Work

Live incident

Active roadworks

Planned

Cleared

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First published: Mon, May 18, 2026 6:53 AM
Last updated: Wed, May 20, 2026 4:04 AM
Cleared: Thu, May 21, 2026 4:00 AM

Latest update: A12 both directions Jct 17 to Jct 11 mobile lane closures

Coordinates: 51.692012, 0.411994
Latitude span: 51.689239 – 51.693833
Longitude span: 0.406213 – 0.420740
Bounding box centre: 51.691536, 0.413477
Location descriptions: A12 northbound between B1002 and A414 near Chelmsford (west)

Feed validity status: Planned
Overall feed start: Wed, May 20, 2026 8:00 PM
Overall feed end: Thu, May 21, 2026 4:00 AM
Feed window length: 8 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

11 coordinate pairs

Description: A12 northbound between B1002 and A414 near Chelmsford (west)
Carriageway: Dual Carriageway
Lanes Restricted: 0 lanes restricted
Operational Lanes: 3 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {BD797760-E644-4459-8713-A48D01EAED3E}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 428 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.690358 0.407535
51.690384 0.407579
51.690872 0.408343
51.691159 0.408821
51.691367 0.409194
51.691401 0.409268
51.691841 0.410203
51.692004 0.410574
51.692354 0.411475
51.692524 0.411947
51.692676 0.412433

Segment 2

14 coordinate pairs

Description: A12 northbound between B1002 and A414 near Chelmsford (west)
Carriageway: Dual Carriageway
Lanes Restricted: 0 lanes restricted
Operational Lanes: 3 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {A49F3C6F-8D94-4340-8EF8-E9EB517C77FC}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 592 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.692676 0.412433
51.692727 0.412595
51.692903 0.413241
51.693044 0.413784
51.693053 0.413827
51.6932 0.41453
51.693265 0.414852
51.693417 0.415786
51.693527 0.416573
51.693585 0.417213
51.693614 0.417562
51.69373 0.419362
51.693821 0.420611
51.693833 0.42074

Segment 3

6 coordinate pairs

Description: A12 northbound between B1002 and A414 near Chelmsford (west)
Carriageway: Dual Carriageway
Lanes Restricted: 0 lanes restricted
Operational Lanes: 3 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {D28C671A-6E9D-4B8C-82AF-AA534761EBAD}
Linear Element Type: A Carriageway
From Distance: 1,642 m
To Distance: 1,797 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.689239 0.406213
51.689401 0.40637
51.689832 0.406857
51.689911 0.406947
51.690279 0.407415
51.690358 0.407535

Geometry type: MultiLineString
Geometry points: 31
First coordinate pair: 0.407535, 51.690358
Road section segments: 1
Road section points: 31

View geometry JSON

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            [
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            [
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            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Maintenance Work
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Other
Feed region label: Chelmsford