Crash View

A46 both directions M4 Jct 18 to Cold Ashton roundabout carriageway closure

Cleared

A46 both directions M4 Jct 18 to Cold Ashton roundabout carriageway closure

Start time
Thu, May 21, 2026 8:00 PM
Expected end
Fri, May 22, 2026 5:00 AM
Duration
9 hours
Road
A46 – A46 Northbound Between A420 And M4
Category
Road Maintenance
Direction
Northbound
Carriageway
Singlecarriageway
Reason
Tree And Vegetation Cutting Work
Live incident
Active roadworks
Planned
Cleared
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First published
Thu, May 21, 2026 3:28 AM
Last updated
Thu, May 21, 2026 6:38 PM
Cleared
Fri, May 22, 2026 5:00 AM
  • Latest update: A46 both directions M4 Jct 18 to Cold Ashton roundabout carriageway closure
Coordinates
51.476746, -2.362277
Latitude span
51.453393 – 51.498348
Longitude span
-2.369551 – -2.352045
Bounding box centre
51.475871, -2.360798
Location descriptions
  • A46 northbound between A420 and M4
Feed validity status
Planned
Overall feed start
Thu, May 21, 2026 8:00 PM
Overall feed end
Fri, May 22, 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

18 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{44CA0432-EEC8-4E35-A74E-E5D5625434DA}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
797 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.457748 -2.369551
51.458051 -2.369545
51.458446 -2.369475
51.458876 -2.369399
51.459324 -2.369301
51.459944 -2.369161
51.460233 -2.369081
51.460501 -2.368991
51.460677 -2.368901
51.461004 -2.368693
51.461134 -2.368583
51.461422 -2.368327
51.462269 -2.367513
51.462926 -2.366896
51.463233 -2.366586
51.463568 -2.366203
51.464075 -2.365573
51.464242 -2.365365

Segment 2

7 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{904B2DD4-C01E-4DAD-A90D-9A9AD4515A92}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
309 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.469576 -2.365997
51.469999 -2.365943
51.470422 -2.365846
51.470665 -2.365776
51.471583 -2.365452
51.472276 -2.365169
51.472303 -2.365155

Segment 3

8 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{817B8DCA-B533-40F0-B568-71F1FA83CDC7}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
83 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.490249 -2.356934
51.490312 -2.356887
51.490615 -2.356714
51.49068 -2.356678
51.490764 -2.356648
51.490772 -2.356645
51.490926 -2.356583
51.490964 -2.356577

Segment 4

20 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{3AFDC16F-61C2-4F62-AC7B-7DF950215BB8}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
613 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.464242 -2.365365
51.464445 -2.36515
51.464752 -2.364922
51.46499 -2.364803
51.465159 -2.364753
51.465411 -2.364743
51.465687 -2.36478
51.465946 -2.36488
51.466442 -2.365103
51.467123 -2.365416
51.467806 -2.36571
51.467896 -2.365739
51.468318 -2.365872
51.468462 -2.365916
51.468623 -2.365946
51.468794 -2.365977
51.468965 -2.365978
51.469333 -2.365995
51.469468 -2.366011
51.469576 -2.365997

Segment 5

13 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{73E1621D-33FC-478D-815B-59A55B4DE1AD}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
532 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.486154 -2.36084
51.487804 -2.359561
51.487904 -2.359475
51.488048 -2.359347
51.488192 -2.359218
51.488363 -2.359018
51.489149 -2.358032
51.489275 -2.357873
51.489483 -2.35763
51.489618 -2.357487
51.489771 -2.357344
51.49006 -2.357073
51.490249 -2.356934

Segment 6

3 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{6199C0BB-76A2-4DBC-8275-1F829DBE2BCB}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
56 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.472303 -2.365155
51.472546 -2.365071
51.472798 -2.364986

Segment 7

3 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
1 lane restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{4DF1B226-6C36-4290-9837-89D402BBFC69}
Linear Element Type
A Carriageway
From Distance
3 m
To Distance
29 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.453393 -2.369286
51.453535 -2.369283
51.453624 -2.369281

Segment 8

13 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{E47F9108-F1C4-4389-AA34-360F82611826}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
613 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.480784 -2.361853
51.481213 -2.361906
51.481463 -2.361937
51.483263 -2.362159
51.483777 -2.362131
51.484106 -2.362043
51.484328 -2.361939
51.484933 -2.361605
51.485093 -2.36151
51.485189 -2.361459
51.485548 -2.361247
51.486082 -2.360889
51.486154 -2.36084

Segment 9

6 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{E6E9177C-5764-4AA3-9BA8-D284CDF48477}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
145 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.497097 -2.353469
51.497147 -2.353411
51.497427 -2.353111
51.497599 -2.35291
51.49786 -2.352581
51.498158 -2.352238

Segment 10

4 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Dual Carriageway
Lanes Restricted
1 lane restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{BBC77869-242E-4F91-B73D-48027EF4A7E7}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
25 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.498158 -2.352238
51.498196 -2.352199
51.49831 -2.352084
51.498348 -2.352045

Segment 11

16 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{556CE88C-94A4-4EF6-868B-894D30E91B23}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
669 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.490964 -2.356577
51.491023 -2.356561
51.491065 -2.356556
51.491408 -2.356494
51.491769 -2.356411
51.492068 -2.356296
51.492757 -2.355953
51.493238 -2.355686
51.494283 -2.355175
51.495093 -2.354757
51.495354 -2.354622
51.495625 -2.35448
51.496012 -2.354267
51.496525 -2.353954
51.496691 -2.353805
51.49671 -2.353783

Segment 12

2 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{09B37543-8804-4501-BF0F-3A1E9798F75F}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
11 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.496817 -2.353698
51.496913 -2.353654

Segment 13

4 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{68F418D1-9884-488E-85FD-2C9D9A3D03E1}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
34 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.480478 -2.361822
51.480568 -2.361837
51.480766 -2.361853
51.480784 -2.361853

Segment 14

17 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{F3635D37-DDD0-48A1-B3FA-6E8B850A2BDC}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
461 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.453624 -2.369281
51.453785 -2.369311
51.454064 -2.369356
51.454244 -2.369372
51.454406 -2.369362
51.454451 -2.369359
51.454945 -2.369306
51.455429 -2.369263
51.455754 -2.36922
51.456025 -2.3692
51.456197 -2.369187
51.4566 -2.36921
51.457094 -2.369354
51.457486 -2.369508
51.457642 -2.36953
51.457655 -2.369531
51.457748 -2.369551

Segment 15

21 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{E5AF4FCD-AB75-4DED-AB14-27938D94A572}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
902 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.472798 -2.364986
51.47296 -2.36493
51.473393 -2.364746
51.473564 -2.36469
51.474068 -2.364449
51.474374 -2.364265
51.47496 -2.363852
51.475681 -2.363267
51.476132 -2.362839
51.476574 -2.362439
51.47697 -2.362154
51.477232 -2.361983
51.477484 -2.361856
51.477601 -2.361814
51.477961 -2.361687
51.478177 -2.361631
51.478465 -2.361619
51.478626 -2.36162
51.479319 -2.361698
51.480244 -2.361791
51.480478 -2.361822

Segment 16

3 coordinate pairs
Description
A46 northbound between A420 and M4
Carriageway
Single Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Both
Height Grade
Start1 End1
Linear Element Road
A46
Linear Element Model
The Network Model
Linear Element Id
{4EF8CC19-64B8-48EF-B6AA-54055C4044AD}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
24 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.496913 -2.353654
51.497021 -2.353554
51.497097 -2.353469
Geometry type
MultiLineString
Geometry points
158
First coordinate pair
-2.369551, 51.457748
Road section segments
1
Road section points
158
View geometry JSON 
{
    "type": "MultiLineString",
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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                -2.356296,
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            ],
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                -2.355953,
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View road section coordinates 
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Cause type
Road Maintenance
Detailed cause
Tree And Vegetation Cutting Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
2
Record created
Thu, May 21, 2026 3:28 AM
Record versioned
Thu, May 21, 2026 6:38 PM
Coordinate source
Geometry

Driving on the A46? See every live closure, roadwork and planned restriction on this road.

A46 live closures

Related incidents

M48 eastbound Jct 2 to 1 hard shoulder closure (199/9B to 194/6B)

Active Roadworks National Highways
South Gloucestershire M48 · M48 Eastbound Between J2 And J1

Expected to clear in 1 week 21 hours

Started 27 May 2026, 02:15 Expected clear 22 Jun 2026, 05:00

M48 eastbound Jct 2 to 1 hard shoulder closure (199/9B to 194/6B)

Category: Road Maintenance
View update

M48 : Westbound : J1 Aust to J2 Newhouse : 15/06/26-17/06/26 2000-0600 : Improvement work : Onslip closed : Offslip closed : Diversions in place :

Active Roadworks Traffic Wales
South Gloucestershire
Started Start time TBC

Description: M48 : Westbound : J1 Aust to J2 Newhouse : 15/06/26-17/06/26 2000-0600 : Improvement work : Onslip closed : Offslip closed : Diversions in place :, Start time: 15/06/2026 20:00 , End Date: 17/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/06/2026 17:56

View update

M48 : Eastbound : J2 Newhouse to J1 Aust : 17/06/26-19/06/26 2000-0600 : Improvement work : Offslip closed : Onslip closed : Diversions in place :

Active Roadworks Traffic Wales
South Gloucestershire
Started Start time TBC

Description: M48 : Eastbound : J2 Newhouse to J1 Aust : 17/06/26-19/06/26 2000-0600 : Improvement work : Offslip closed : Onslip closed : Diversions in place :, Start time: 17/06/2026 20:00 , End Date: 19/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/06/2026 17:57

View update

M48 eastbound Jct 2 to 1 lane 1 closure (199/9B to 194/6B)

Planned Roadworks National Highways
South Gloucestershire M48 · M48 Eastbound Between J2 And J1

Starts in 11 hours 46 minutes

Starts 14 Jun 2026, 19:00 Expected clear 15 Jun 2026, 04:00

M48 eastbound Jct 2 to 1 lane 1 closure (199/9B to 194/6B)

Category: Road Maintenance
View update

M5 northbound Jct 16 exit slip - lane closure

Cleared Roadworks National Highways
South Gloucestershire M5 · M5 Northbound Between J17 And J16

Cleared 2 hours 13 minutes ago

Started 13 Jun 2026, 19:00 Ended 14 Jun 2026, 05:00

M5 northbound Jct 16 exit slip - lane closure

Category: Authority Operation
View update

A46 northbound Tollbar End to Binley carriageway closure

Cleared Roadworks National Highways
Coventry A46 · A46 Northbound Within The A428 Junction

Cleared 1 day 10 hours ago

Started 12 Jun 2026, 20:00 Ended 12 Jun 2026, 20:25

A46 northbound Tollbar End to Binley carriageway closure

Category: Road Maintenance
View update