A21 southbound lane closure and Forstal Farm roundabout

Cleared

Start time: Tue, Jan 20, 2026 8:00 PM
Expected end: Wed, Jan 21, 2026 5:00 AM
Duration: 9 hours
Road: A21 – A21 Southbound Between A262 And B2169
Category: Construction Work
Direction: Southbound
Carriageway: Dual Carriageway
Lanes affected: Lane 1 closed, 1 of 1 lanes affected
Reason: Construction Work

Live incident

Active roadworks

Planned

Cleared

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First published: Tue, Jan 20, 2026 7:39 PM
Last updated: Tue, Jan 20, 2026 9:02 PM
Cleared: Wed, Jan 21, 2026 5:00 AM

Latest update: A21 southbound lane closure and Forstal Farm roundabout

Coordinates: 51.110591, 0.401430
Latitude span: 51.109714 – 51.111025
Longitude span: 0.400323 – 0.402350
Bounding box centre: 51.110370, 0.401337
Location descriptions: A21 southbound between A262 and B2169

Roundabout at A21 A262/B2169

A21 southbound between B2160 and A262

Feed validity status: Active
Overall feed start: Tue, Jan 20, 2026 8:00 PM
Overall feed end: Wed, Jan 21, 2026 5:00 AM
Feed window length: 9 hours
Probability code (raw): certain
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: A21 southbound between A262 and B2169
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A21
Linear Element Model: The Network Model
Linear Element Id: {13E80A3D-8609-45EF-AED7-1505FB1A3DE5}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 84 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.110358 0.4017
51.11008 0.401997
51.109898 0.402172
51.109714 0.40235

Segment 2

6 coordinate pairs

Description: Roundabout at A21 A262/B2169
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: Clockwise
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A21
Linear Element Model: The Network Model
Linear Element Id: {87C237E4-1311-4901-B6A1-498F9F38AB94}
Linear Element Type: Other
From Distance: 0 m
To Distance: 23 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.110705 0.401114
51.110727 0.401174
51.110742 0.40124
51.11075 0.401308
51.110753 0.401383
51.110751 0.40143

Segment 3

8 coordinate pairs

Description: Roundabout at A21 A262/B2169
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: Clockwise
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A21
Linear Element Model: The Network Model
Linear Element Id: {C7786F6C-205C-497F-9A30-F529A2AA5FCA}
Linear Element Type: Other
From Distance: 0 m
To Distance: 31 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.110631 0.401693
51.110611 0.401713
51.11057 0.401739
51.110527 0.401755
51.110484 0.401758
51.11044 0.40175
51.110398 0.40173
51.110358 0.4017

Segment 4

4 coordinate pairs

Description: A21 southbound between B2160 and A262
Carriageway: Single Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: South Bound
Direction Relative: Both
Height Grade: Start1 End1
Linear Element Road: A21
Linear Element Model: The Network Model
Linear Element Id: {C0D1C13E-EBC0-4AB6-AC85-F5C71A5681DE}
Linear Element Type: A Carriageway
From Distance: 250 m
To Distance: 288 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.111025 0.400323
51.110985 0.400419
51.11086 0.400632
51.110789 0.400718

Segment 5

2 coordinate pairs

Description: A21 southbound between B2160 and A262
Carriageway: Single Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A21
Linear Element Model: The Network Model
Linear Element Id: {87CFA8A5-69B0-4E19-9368-DE3F4C3908BB}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 29 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.110789 0.400718
51.110705 0.401114

Segment 6

5 coordinate pairs

Description: Roundabout at A21 A262/B2169
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: Clockwise
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A21
Linear Element Model: The Network Model
Linear Element Id: {C9279F45-300F-4048-BFA9-0C2E4A193BEF}
Linear Element Type: Other
From Distance: 0 m
To Distance: 23 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.110751 0.40143
51.110729 0.401513
51.110708 0.401574
51.110681 0.401629
51.110631 0.401693

Geometry type: MultiLineString
Geometry points: 29
First coordinate pair: 0.401700, 51.110358
Road section segments: 1
Road section points: 29

View geometry JSON

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            [
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            [
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}

View road section coordinates

Cause type: Construction Work
Detailed cause: Construction Work
Compliance: Mandatory
Probability: Certain
Validity status: Active
Road management: Other