M4 eastbound Jct 19 to Jct 18 single lane running 174/6-169/0
PlannedM4 eastbound Jct 19 to Jct 18 single lane running 174/6-169/0
- Start time
- Sat, Oct 31, 2026 8:00 PM
- Expected end
- Sun, Nov 1, 2026 6:00 AM
- Duration
- 10 hours
- Road
- M4 – M4 Eastbound Between J19 And J18
- Category
- Road Maintenance
- Direction
- Eastbound
- Carriageway
- Dual Carriageway
- Lanes affected
- 3 of 1 lanes affected
- Reason
- Roadworks
Move Insights
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- First published
- Fri, Oct 30, 2026 8:03 PM
- Last updated
- Sat, Oct 31, 2026 1:32 AM
- Cleared
- Sun, Nov 1, 2026 6:00 AM
- Latest update: M4 eastbound Jct 19 to Jct 18 single lane running 174/6-169/0
- Coordinates
- 51.499733, -2.376169
- Latitude span
- 51.497913 – 51.502001
- Longitude span
- -2.423500 – -2.343973
- Bounding box centre
- 51.499957, -2.383737
- Location descriptions
-
- M4 eastbound between J19 and J18
- M4 eastbound within J18
- Feed validity status
- Planned
- Overall feed start
- Sat, Oct 31, 2026 8:00 PM
- Overall feed end
- Sun, Nov 1, 2026 6:00 AM
- Feed window length
- 10 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
48 coordinate pairs- Description
- M4 eastbound between J19 and J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 3 lanes restricted
- Operational Lanes
- 1 operational lane
- 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
- 517 m
- To Distance
- 4,868 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.497913 -2.4235 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 51.497962 -2.407223 51.497959 -2.405754 51.497959 -2.40548 51.497961 -2.404746 51.497956 -2.403608 51.498008 -2.393596 51.498007 -2.391925 51.498007 -2.391377 51.498019 -2.39034 51.498014 -2.389332 51.498008 -2.388179 51.498021 -2.387185 51.498026 -2.386739 51.498046 -2.384981 51.498086 -2.383743 51.498231 -2.38056 51.498297 -2.379567 51.498447 -2.37771 51.498459 -2.377599 51.498531 -2.376904 51.498596 -2.376112 51.498616 -2.375939 51.498726 -2.374975 51.498864 -2.373852 51.499141 -2.371737 51.499379 -2.370241 51.499709 -2.368298 51.499901 -2.367248 51.500221 -2.365668 51.500367 -2.364947 51.500422 -2.364645 51.500495 -2.364372 51.500622 -2.363768 51.500896 -2.36256 51.500987 -2.362143 51.501005 -2.362044 51.501097 -2.361553 51.501124 -2.361438
Segment 2
5 coordinate pairs- Description
- M4 eastbound within J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 3 lanes restricted
- Operational Lanes
- 1 operational lane
- 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
- {F4DDBB46-70A5-4A49-9879-86CF9E3E0228}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 125 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.501999 -2.350667 51.501998 -2.350478 51.501994 -2.350265 51.501965 -2.348996 51.501959 -2.348864
Segment 3
13 coordinate pairs- Description
- M4 eastbound within J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 3 lanes restricted
- Operational Lanes
- 1 operational lane
- 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
- {9E391445-CF68-43AC-BC41-5E75DA82EEA8}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 756 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.501124 -2.361438 51.501335 -2.360042 51.501367 -2.359813 51.501529 -2.358588 51.501593 -2.357984 51.501732 -2.356717 51.501797 -2.355983 51.501901 -2.354514 51.501968 -2.353088 51.501978 -2.352786 51.501988 -2.352498 51.502001 -2.351172 51.501999 -2.350667
Segment 4
4 coordinate pairs- Description
- M4 eastbound within J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 3 lanes restricted
- Operational Lanes
- 1 operational lane
- 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
- {32FADBBC-F816-49E8-B496-866F25C3CB2F}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 339 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.501959 -2.348864 51.501887 -2.347152 51.501837 -2.345711 51.501806 -2.343973
- Geometry type
- MultiLineString
- Geometry points
- 70
- First coordinate pair
- -2.423500, 51.497913
- Road section segments
- 1
- Road section points
- 70
View geometry JSON
{
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View road section coordinates
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- Cause type
- Road Maintenance
- Detailed cause
- Roadworks
- Compliance
- Mandatory
- Probability
- Probable
- Validity status
- Planned
- Road management
- Other
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 2
- Record created
- Fri, Oct 30, 2026 8:03 PM
- Record versioned
- Sat, Oct 31, 2026 1:32 AM
- Coordinate source
- Geometry
Driving on the M4? See every live closure, roadwork and planned restriction on this road.
M4 live closuresRelated incidents
M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed
Active Roadworks National HighwaysExpected to clear in 1 month 3 days
M4 westbound Jct 20 exit slip road to M5 northbound Jct 15 - carriageway closed
Contra flow westbound with eastbound closed from Horseshoe Drive
Active Roadworks National HighwaysExpected to clear in 2 months 4 days
contra flow westbound with eastbound closed from Horseshoe Drive
M48 : Both directions : Dewstoe overbridge to Crick overbridge : 20/10/26-31/03/27 2000-0600 : Improvement work : Lane closed :
Active Roadworks Traffic WalesDescription: M48 : Both directions : Dewstoe overbridge to Crick overbridge : 20/10/26-31/03/27 2000-0600 : Improvement work : Lane closed :, Start time: 20/10/2026 20:00 , End Date: 31/03/2027 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 20/10/2026 20:00
M4 Eastbound Jct 4b to Jct 3 Carriageway closure
Cleared Roadworks National HighwaysCleared 5 hours 27 minutes ago
M4 Eastbound Jct 4b to Jct 3 Carriageway closure
M4 Eastbound Jct 5 to Jct 4b Lane 4,3,2 closure
Cleared Roadworks National HighwaysCleared 2 hours 17 minutes ago
M4 Eastbound Jct 5 to Jct 4b Lane 4,3,2 closure
M4 Eastbound Jct 5 to Jct 4b Lane closure
Cleared Roadworks National HighwaysCleared 2 hours 17 minutes ago
M4 Eastbound Jct 5 to Jct 4b Lane closure