7.3.1 Concept of detail mapping - LUPMISManual

7.3 Detail Mapping for Local Plan

Level of expertise required for this Chapter: Planner; specifically for LUPMIS @ TCPD

7.3.1 Concept of Detail Mapping

If land use planning has to be done in already built-up land, for example in towns, current structures like buildings, roads, etc have to be considered.

Principally, there are two options:

• Either, to plan ‘around’ existing structures,
  

• Or, to consider demolishing them where necessary.
  

To express land use planning recommendations accordingly, these structures have to be mapped in a large-scale, ‘detailed mapping’. In most cases, this will be done only for rather small areas.

Recommended mapping scale is 1:2000. High-resolution imagery or orthophotos are necessary. Photography or imagery must have a resolution of 1 m or better. Remember: 1 cm at the map is equivalent to 20 m on ground at 1:2000.

Geographical accuracy and minimum mapping unit:

• Geographical accuracy: 5 mm = 10 m (at 1:2000)
  

• Minimum mapping units: 5 x 5 mm = 10 x 10 m. Smaller units do not have to be identified.