Crash View

M40 lane closures southbound (up to 3.99k)

Cleared

M40 lane closures southbound (up to 3.99k)

Start time
Mon, Jul 6, 2026 8:00 PM
Expected end
Tue, Jul 7, 2026 5:00 AM
Duration
2 seconds
Road
M40 – M40 Southbound Between M42 And J16
Category
Road Maintenance
Direction
Southbound
Carriageway
Dual Carriageway
Lanes affected
2 of 2 lanes affected
Reason
Repair Work
Live incident
Active roadworks
Planned
Cleared
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First published
Thu, Jun 18, 2026 7:38 AM
Last updated
Sun, Jul 5, 2026 11:39 PM
Cleared
Mon, Jul 6, 2026 8:00 PM
  • Latest update: M40 lane closures southbound (up to 3.99k)
Coordinates
52.337233, -1.776296
Latitude span
52.330586 – 52.345596
Longitude span
-1.796614 – -1.750594
Bounding box centre
52.338091, -1.773604
Location descriptions
  • M40 southbound between M42 and J16
  • M40 southbound between J16 and J15
Feed validity status
Planned
Overall feed start
Mon, Jul 6, 2026 8:00 PM
Overall feed end
Tue, Jul 7, 2026 5:00 AM
Feed window length
9 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

7 coordinate pairs
Description
M40 southbound between M42 and J16
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{9EC85EA8-765F-4FDC-9F8E-D63248D2B01A}
Linear Element Type
B Carriageway
From Distance
488 m
To Distance
666 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.345596 -1.796614
52.345563 -1.79652
52.345328 -1.795905
52.345283 -1.795797
52.345039 -1.795216
52.344741 -1.794498
52.344714 -1.79444

Segment 2

2 coordinate pairs
Description
M40 southbound between J16 and J15
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{909902E3-351B-4BE8-B9BB-04CE1D50D0F4}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
3 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.334697 -1.772118
52.334688 -1.772065

Segment 3

16 coordinate pairs
Description
M40 southbound between M42 and J16
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{1ECEA356-A435-45EC-B6C0-AF6697DAF966}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
935 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.344714 -1.79444
52.344651 -1.794278
52.34429 -1.793517
52.343947 -1.792814
52.343496 -1.791964
52.343307 -1.791628
52.343097 -1.79127
52.342946 -1.791013
52.342703 -1.790603
52.342054 -1.789652
52.34017 -1.787004
52.339764 -1.786404
52.339413 -1.785863
52.339224 -1.785556
52.338971 -1.785107
52.338773 -1.784765

Segment 4

2 coordinate pairs
Description
M40 southbound between J16 and J15
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{14CEBDFC-D4E5-4BA9-A5A9-442E93EF3603}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
128 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.334688 -1.772065
52.334416 -1.770226

Segment 5

7 coordinate pairs
Description
M40 southbound between J16 and J15
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{9272BDF9-2B65-42EE-B918-D56D1E7E5B0A}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
346 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.331869 -1.755222
52.331801 -1.754965
52.331357 -1.753367
52.331068 -1.752342
52.330959 -1.751946
52.330587 -1.750598
52.330586 -1.750594

Segment 6

11 coordinate pairs
Description
M40 southbound between M42 and J16
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{3EFB4153-4AF2-4A12-8BAE-8ACB7C6565A7}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
424 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.338773 -1.784765
52.338655 -1.784546
52.338466 -1.784194
52.338294 -1.783843
52.337961 -1.783169
52.337802 -1.782831
52.337618 -1.782437
52.337338 -1.781793
52.337121 -1.781265
52.336895 -1.780635
52.336561 -1.779698

Segment 7

15 coordinate pairs
Description
M40 southbound between J16 and J15
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{EAE18DBD-4446-441C-8A33-274747F64045}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
1,062 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.334416 -1.770226
52.333919 -1.766605
52.33381 -1.765828
52.333482 -1.763423
52.333454 -1.763233
52.333345 -1.762485
52.333217 -1.761634
52.33309 -1.760813
52.332999 -1.760285
52.332835 -1.759406
52.332608 -1.758306
52.3323 -1.756943
52.331973 -1.755639
52.331874 -1.755243
52.331869 -1.755222

Segment 8

12 coordinate pairs
Description
M40 southbound between J16 and J15
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
2 operational lanes
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{E52AF5B4-6CD3-4D5E-B917-CF8625D3AE98}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
558 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.336561 -1.779698
52.336425 -1.779332
52.336163 -1.77857
52.335828 -1.777441
52.335539 -1.776357
52.33543 -1.775888
52.335321 -1.775433
52.335131 -1.774554
52.334958 -1.773703
52.334804 -1.772794
52.334767 -1.772574
52.334697 -1.772118
Geometry type
MultiLineString
Geometry points
72
First coordinate pair
-1.796614, 52.345596
Road section segments
1
Road section points
72
View geometry JSON 
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View road section coordinates 
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Cause type
Road Maintenance
Detailed cause
Repair Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
3
Record created
Thu, Jun 18, 2026 7:38 AM
Record versioned
Sun, Jul 5, 2026 11:39 PM
Coordinate source
Geometry

Driving on the M40? See every live closure, roadwork and planned restriction on this road.

M40 live closures

Related incidents

M40 Northbound Jct 4 to Jct 5 hardshoulder closure.

Active Roadworks National Highways
Wycombe M40 · M40 Northbound Between J4 And J5

Expected to clear in 24 minutes 30 seconds

Started 3 Aug 2026, 08:35 Expected clear 3 Aug 2026, 18:00

M40 Northbound Jct 4 to Jct 5 hardshoulder closure.

Category: Road Maintenance
View update

M40 Southbound, Jct 8a exit slip road lane one closure

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Benson M40 · M40 J8A Southbound Exit

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M40 Southbound, Jct 8a exit slip road lane one closure

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View update

M40 southbound, Jct 7 to Jct 6, hard shoulder closure

Active Roadworks National Highways
Benson M40 · M40 Southbound Between J7 And J6

Expected to clear in 2 days 5 hours

Started 2 Aug 2026, 08:55 Expected clear 5 Aug 2026, 22:59

M40 southbound, Jct 7 to Jct 6, hard shoulder closure

Category: Road Maintenance
View update

M40 Southbound Jct 12 to Jct 11 lane 3 and 2 closure

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Between J12 And J11

Starts in 3 hours 39 minutes

Starts 3 Aug 2026, 21:15 Expected clear 4 Aug 2026, 05:00

M40 Southbound Jct 12 to Jct 11 lane 3 and 2 closure

Category: Road Maintenance
View update

M40 northbound, Jct 5 exit slip road closure

Planned Roadworks National Highways
Wycombe M40 · M40 J5 Northbound Exit

Starts in 3 hours 39 minutes

Starts 3 Aug 2026, 21:15 Expected clear 4 Aug 2026, 05:00

M40 northbound, Jct 5 exit slip road closure

Category: Road Maintenance
View update

M40 northbound, Jct 4 A404 entry slip road closure

Planned Roadworks National Highways
Wycombe M40 · M40 J4 Northbound Access

Starts in 3 hours 39 minutes

Starts 3 Aug 2026, 21:15 Expected clear 4 Aug 2026, 05:00

M40 northbound, Jct 4 A404 entry slip road closure

Category: Road Maintenance
View update