Crash View

M4 eastbound Jct 20 to 19 carriageway closure

Planned

M4 eastbound Jct 20 to 19 carriageway closure

Start time
Mon, Jun 15, 2026 8:00 PM
Expected end
Tue, Jun 16, 2026 5:00 AM
Duration
9 hours
Road
M4 – M4 Eastbound Between J20 And J19
Category
Construction Work
Direction
Eastbound
Carriageway
Dual Carriageway
Reason
Road Improvement Or Upgrading
Live incident
Active roadworks
Planned
Cleared
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First published
Mon, Jun 8, 2026 7:00 AM
Last updated
Sun, Jun 14, 2026 11:59 PM
Cleared
Tue, Jun 16, 2026 5:00 AM
  • Latest update: M4 eastbound Jct 20 to 19 carriageway closure
Coordinates
51.535443, -2.537513
Latitude span
51.512699 – 51.556642
Longitude span
-2.556372 – -2.517729
Bounding box centre
51.534671, -2.537051
Location descriptions
  • M4 eastbound between J20 and J19
  • M4 eastbound within J20
  • M4 eastbound within J19
Feed validity status
Planned
Overall feed start
Mon, Jun 15, 2026 8:00 PM
Overall feed end
Tue, Jun 16, 2026 5:00 AM
Feed window length
9 hours
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

19 coordinate pairs
Description
M4 eastbound between J20 and J19
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{85AC09F6-96DE-494F-B2A9-C8AA2E3DFACC}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
2,343 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.543474 -2.545416
51.541656 -2.543707
51.540672 -2.542787
51.538649 -2.540758
51.53702 -2.539095
51.535669 -2.537652
51.535043 -2.536997
51.534219 -2.536135
51.533432 -2.535301
51.532966 -2.534809
51.531974 -2.533788
51.531705 -2.533511
51.53029 -2.532125
51.529295 -2.531162
51.528777 -2.53066
51.528527 -2.530417
51.526718 -2.52871
51.525734 -2.527798
51.525558 -2.527632

Segment 2

2 coordinate pairs
Description
M4 eastbound within J20
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{407A832B-785B-456C-B119-3BE807BC963B}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
8 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.551423 -2.552328
51.551353 -2.552268

Segment 3

8 coordinate pairs
Description
M4 eastbound within J20
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{28ED533E-2B58-4717-A7A3-2B792A8EAEAA}
Linear Element Type
B Carriageway
From Distance
98 m
To Distance
727 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.556642 -2.556372
51.554553 -2.55478
51.554311 -2.554618
51.553809 -2.554237
51.553576 -2.554032
51.552364 -2.553065
51.551722 -2.552553
51.551556 -2.552423

Segment 4

2 coordinate pairs
Description
M4 eastbound within J20
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{E8F9A6A6-C4A5-459A-81EE-A74F053E7557}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
7 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.551487 -2.55237
51.551423 -2.552328

Segment 5

5 coordinate pairs
Description
M4 eastbound between J20 and J19
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{4BCF2443-C5FD-4FF9-AA29-18986A140FEA}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
542 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.525558 -2.527632
51.523052 -2.525472
51.522132 -2.524679
51.521529 -2.524186
51.521254 -2.523962

Segment 6

2 coordinate pairs
Description
M4 eastbound within J19
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{93B3E094-7C2C-4794-8F7A-35DC21348483}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
60 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.513206 -2.518062
51.512699 -2.517729

Segment 7

2 coordinate pairs
Description
M4 eastbound within J20
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{5FE5294E-1C12-41EA-BC84-7E42E7871A89}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
10 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.551353 -2.552268
51.551275 -2.552192

Segment 8

5 coordinate pairs
Description
M4 eastbound within J20
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{D47D9956-3E4B-4BFB-80C9-801B183CA129}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
563 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.551275 -2.552192
51.549482 -2.550737
51.549125 -2.55043
51.547933 -2.549406
51.54681 -2.548347

Segment 9

7 coordinate pairs
Description
M4 eastbound within J19
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{DE3F153B-AE64-49E0-BB4C-FE52319A0321}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
486 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.517228 -2.520815
51.515555 -2.519602
51.515269 -2.519413
51.515267 -2.519411
51.514272 -2.518762
51.513358 -2.518165
51.513206 -2.518062

Segment 10

7 coordinate pairs
Description
M4 eastbound between J20 and J19
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{581B4D6A-665F-46CA-9F01-6FC3F1B84523}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
423 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.54681 -2.548347
51.545247 -2.546996
51.545229 -2.54698
51.54479 -2.5466
51.54462 -2.546468
51.54393 -2.545854
51.543474 -2.545416

Segment 11

2 coordinate pairs
Description
M4 eastbound within J20
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{2ABFF248-427F-4403-8093-9201AFE72EB3}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
8 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.551556 -2.552423
51.551487 -2.55237

Segment 12

7 coordinate pairs
Description
M4 eastbound between J20 and J19
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{51A1E8DE-A380-4397-BA33-FAC51D97010E}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
498 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.521254 -2.523962
51.52086 -2.523641
51.520769 -2.523567
51.519471 -2.522529
51.519197 -2.522318
51.51776 -2.521213
51.517228 -2.520815
Geometry type
MultiLineString
Geometry points
68
First coordinate pair
-2.545416, 51.543474
Road section segments
1
Road section points
68
View geometry JSON 
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            ],
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                -2.521213,
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View road section coordinates 
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            -2.545416,
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]
Cause type
Construction Work
Detailed cause
Road Improvement Or Upgrading
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Mon, Jun 8, 2026 7:00 AM
Record versioned
Sun, Jun 14, 2026 11:59 PM
Coordinate source
Geometry

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