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5 Cards in this Set
- Front
- Back
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What do white studs do? |
Mark lanes or the centre of the road. |
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What do red studs do? |
Mark the left edge of the road. |
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What do amber studs do? |
Mark the central reservation of a dual carriageway or motorway. |
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What do green studs do? |
Mark the edge of the main carriageway at lay bys and slip roads. |
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What do green and yellow studs do? |
Indicate temporary adjustments to lane layouts where road works or other disruptions may be taking place. |
