M4 eastbound Jct 19 to Jct 18 single lane running (178/6 to 173/5)

Cleared

Start time: Fri, Jul 24, 2026 7:09 PM
Expected end: Sat, Jul 25, 2026 5:00 AM
Duration: 46 minutes 1 second
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: Fri, Jul 24, 2026 3:12 PM
Last updated: Fri, Jul 24, 2026 7:31 PM
Cleared: Fri, Jul 24, 2026 7:55 PM

Latest update: M4 eastbound Jct 19 to Jct 18 single lane running (178/6 to 173/5)

Coordinates: 51.500507, -2.447651
Latitude span: 51.497875 – 51.505924
Longitude span: -2.478936 – -2.407862
Bounding box centre: 51.501900, -2.443399
Location descriptions: M4 eastbound between J19 and J18

Feed validity status: Planned
Overall feed start: Fri, Jul 24, 2026 7:09 PM
Overall feed end: Sat, Jul 25, 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

12 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: {AE403C52-5D62-47F7-9FDF-592C93083448}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 1,602 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.497877 -2.430949
51.497896 -2.428313
51.497914 -2.423271
51.49792 -2.419151
51.497928 -2.416817
51.497932 -2.415838
51.497936 -2.414628
51.497971 -2.412266
51.497959 -2.410537
51.497955 -2.409096
51.497958 -2.408347
51.49796 -2.407862

Segment 2

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: 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: 2,101 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
51.498012 -2.438067
51.497964 -2.436597
51.49794 -2.435833
51.497916 -2.435084
51.497885 -2.433557
51.497875 -2.43154
51.497877 -2.430949

Segment 3

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 4

8 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: 780 m
To Distance: 1,215 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.505924 -2.478936
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

Geometry type: MultiLineString
Geometry points: 52
First coordinate pair: -2.430949, 51.497877
Road section segments: 1
Road section points: 52

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