Summary
The WJ Group Robotic PreMarker is an 18 kg wheeled robot that autonomously sprays temporary pre-marking dots and lines on road carriageways, following a GNSS-guided digital marking plan loaded via USB. It covers one subtask within the roads and pavements job: layout and measurement for highway surface works, including centre lines and car park bays; final line application, symbols, and other marking patterns stay with the crew. The Robotic PreMarker has been in production deployments since 2018 across six confirmed UK highway schemes for contractors including Balfour Beatty and Costain/Galliford Try.
How it works on your site
Layout and Measurement
The robot loads a digital marking plan in CSV or DXF format from a USB key and follows GNSS coordinates to spray temporary pre-marking positions on the carriageway. The operator stays inside a vehicle behind the traffic management closure while the robot traverses the work zone. Final permanent line application, symbols, hatching, and complex junction geometry remain crew work.
What users have experienced
5 x multiplier vs. requirement
Accuracy
WJ70 hours saved
Time saving
WJ30×
Speed
WJRobot deployment record
6 deployments on public record
| Project | Organizations | Country | Detail |
|---|---|---|---|
| M6 Junctions 4 to 2 surface works production |
Balfour Beatty
|
UK | |
|
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| M4 Hard Shoulder production |
Balfour Beatty
Colas
|
UK | |
|
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| M6 Warwickshire trial | Not stated | UK | |
|
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| A14 Cambridge to Huntingdon Improvement (GBP 1.5 billion scheme) production | National Highways | UK | — |
| M1 Outside Lane Edge production |
Costain
Galliford Try JV
|
UK | — |
| M60 Manchester trial | Not stated | UK | — |
| No deployments match these filters. | |||
Other companies that have deployed this robot
5 organizations on record for this robot
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