ASD is Associated Street Data that forms a supplementary part of the NSG. It contains information such as road length, details of ownership, structures, pipelines and width & height restrictions.     Associated Street Data may be held for each Type I and II street. This may be: Additional Street (Type 21) Reinstatement Designation (Type 22) Special Designation (Type 23)

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Scottish Road Works Register - Associated Data is the Scottish equivalent of ASD and may be held for each Type I and II street. This may be:

• Maintenance Responsibility (Type 51)
• Reinstatement Categories (Type 52)
• Special Designations (Type 53)

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The intuitive and user-friendly map based interface means the management of your ASD data is as easy as it is compliant.

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