Crash View

A1(M) northbound Jct 8 Stevenage exit slip road lane 1 closure

Cleared

A1(M) northbound Jct 8 Stevenage exit slip road lane 1 closure

Start time
Tue, Mar 10, 2026 9:00 PM
Expected end
Wed, Mar 11, 2026 5:00 AM
Duration
8 hours
Road
A1(M) – A1(M) Northbound Between J7 And J8
Category
Road Maintenance
Direction
Northbound
Carriageway
Dual Carriageway
Lanes affected
Lane 1 closed, 1 of 2 lanes affected
Reason
Maintenance Work
Live incident
Active roadworks
Planned
Cleared
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First published
Tue, Mar 3, 2026 1:00 PM
Last updated
Tue, Mar 10, 2026 10:27 AM
Cleared
Wed, Mar 11, 2026 5:00 AM
  • Latest update: A1(M) northbound Jct 8 Stevenage exit slip road lane 1 closure
Coordinates
51.926079, -0.221134
Latitude span
51.924233 – 51.927701
Longitude span
-0.222041 – -0.220581
Bounding box centre
51.925967, -0.221311
Location descriptions
  • A1(M) northbound between J7 and J8
  • A1(M) J8 northbound exit
Feed validity status
Planned
Overall feed start
Tue, Mar 10, 2026 9:00 PM
Overall feed end
Wed, Mar 11, 2026 5:00 AM
Feed window length
8 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

4 coordinate pairs
Description
A1(M) northbound between J7 and J8
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
2 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A1(M)
Linear Element Model
The Network Model
Linear Element Id
{BDC0DE54-D119-43E7-9CE1-7CEAF4ACF7D1}
Linear Element Type
A Carriageway
From Distance
404 m
To Distance
536 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.924233 -0.222041
51.924487 -0.221876
51.924736 -0.221715
51.925323 -0.22127

Segment 2

7 coordinate pairs
Description
A1(M) J8 northbound exit
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
2 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A1(M)
Linear Element Model
The Network Model
Linear Element Id
{66BB03D9-AEF5-4186-83BE-57385D8D0229}
Linear Element Type
A Carriageway Exit Slip
From Distance
0 m
To Distance
269 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.925323 -0.22127
51.925824 -0.221096
51.926548 -0.220844
51.927435 -0.220605
51.927587 -0.220584
51.927668 -0.220581
51.927701 -0.22059
Geometry type
MultiLineString
Geometry points
11
First coordinate pair
-0.222041, 51.924233
Road section segments
1
Road section points
11
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.222041,
                51.924233
            ],
            [
                -0.221876,
                51.924487
            ],
            [
                -0.221715,
                51.924736
            ],
            [
                -0.22127,
                51.925323
            ],
            [
                -0.22127,
                51.925323
            ],
            [
                -0.221096,
                51.925824
            ],
            [
                -0.220844,
                51.926548
            ],
            [
                -0.220605,
                51.927435
            ],
            [
                -0.220584,
                51.927587
            ],
            [
                -0.220581,
                51.927668
            ],
            [
                -0.22059,
                51.927701
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            -0.222041,
            51.924233
        ],
        [
            -0.221876,
            51.924487
        ],
        [
            -0.221715,
            51.924736
        ],
        [
            -0.22127,
            51.925323
        ],
        [
            -0.22127,
            51.925323
        ],
        [
            -0.221096,
            51.925824
        ],
        [
            -0.220844,
            51.926548
        ],
        [
            -0.220605,
            51.927435
        ],
        [
            -0.220584,
            51.927587
        ],
        [
            -0.220581,
            51.927668
        ],
        [
            -0.22059,
            51.927701
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Maintenance Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Tue, Mar 3, 2026 1:00 PM
Record versioned
Tue, Mar 10, 2026 10:27 AM
Coordinate source
Geometry

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