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DESIGN CRITERIA
Plan SM2: Junction on a single carriageway road with a permanent speed limit of 30mph or less, work on a signal island with a conspicuous vehicle with beacon
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NOTES:
- Minimum lateral clearance increased from 0.5 m to 1.2 m if speed restriction on the crossing road is 50mph or more.
- Detail B — the size of cones is dependent on the speed limit on the crossing road.
- Appropriate advance warning signs should be placed on the cross arms of the junction.
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