M4 eastbound Jct 19 to Jct 18 lane 1&2 closure with switch (179/7 to 175/7)

Cleared

Start time: Wed, Jul 22, 2026 7:09 PM
Expected end: Thu, Jul 23, 2026 5:00 AM
Duration: 7 hours 51 minutes 2 seconds
Road: M4 – M4 Eastbound Between J19 And J18
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 2 of 2 lanes affected
Reason: Roadworks

Live incident

Active roadworks

Planned

Cleared

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First published: Thu, Jul 16, 2026 1:19 PM
Last updated: Thu, Jul 23, 2026 2:44 AM
Cleared: Thu, Jul 23, 2026 3:00 AM

Latest update: M4 eastbound Jct 19 to Jct 18 lane 1&2 closure with switch (179/7 to 175/7)

Coordinates: 51.503622, -2.471584
Latitude span: 51.498103 – 51.506542
Longitude span: -2.494500 – -2.439373
Bounding box centre: 51.502323, -2.466937
Location descriptions: M4 eastbound between J19 and J18

Feed validity status: Planned
Overall feed start: Wed, Jul 22, 2026 7:09 PM
Overall feed end: Thu, Jul 23, 2026 5:00 AM
Feed window length: 9 hours 51 minutes
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

7 coordinate pairs

Description: M4 eastbound between J19 and J18
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 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: {4FC55118-21B8-4C2A-8C78-DCFC2676C5E1}
Linear Element Type: B Carriageway
From Distance: 235 m
To Distance: 549 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.505795 -2.4945
51.505947 -2.49363
51.506003 -2.493227
51.506077 -2.492695
51.506188 -2.491889
51.506263 -2.49127
51.506376 -2.490076

Segment 2

9 coordinate pairs

Description: M4 eastbound between J19 and J18
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 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: {D220B0D0-30D4-43FF-9FDC-24DE0B352023}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 941 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.504586 -2.473052
51.504496 -2.472708
51.504407 -2.472361
51.503708 -2.469502
51.502956 -2.466511
51.502266 -2.463705
51.501947 -2.46241
51.50169 -2.461398
51.501451 -2.46046

Segment 3

23 coordinate pairs

Description: M4 eastbound between J19 and J18
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 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: {C3679DF2-03F3-4CA4-BB4D-FDC094D96E6A}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 1,215 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.506376 -2.490076
51.506394 -2.489932
51.506452 -2.489111
51.50649 -2.488621
51.506509 -2.487959
51.506521 -2.487527
51.506542 -2.48672
51.506538 -2.485668
51.506523 -2.484861
51.506482 -2.483881
51.50644 -2.483247
51.506363 -2.482237
51.506268 -2.481271
51.506162 -2.480463
51.506155 -2.480405
51.506076 -2.479857
51.505883 -2.478688
51.505727 -2.477865
51.505725 -2.47785
51.505522 -2.476854
51.505336 -2.476088
51.504589 -2.473064
51.504586 -2.473052

Segment 4

17 coordinate pairs

Description: M4 eastbound between J19 and J18
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 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: {ECE92394-6379-4B07-B9E8-82CA83CEA3C5}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 1,515 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.501451 -2.46046
51.501115 -2.459102
51.500832 -2.457903
51.500673 -2.457196
51.500416 -2.456055
51.500055 -2.454294
51.499869 -2.453442
51.499675 -2.452446
51.499499 -2.451393
51.499297 -2.450209
51.499139 -2.449185
51.498973 -2.447973
51.498833 -2.447007
51.498511 -2.444238
51.498355 -2.442723
51.498217 -2.441022
51.498103 -2.439373

Geometry type: MultiLineString
Geometry points: 56
First coordinate pair: -2.494500, 51.505795
Road section segments: 1
Road section points: 56

View geometry JSON

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}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Roadworks
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Other