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SMOLE Mapping Component
• Purpose of the component is to support mapping in Zanzibar
• Consists of the following activities:– Fresh aerial photography
– Establishment of modern digital mapping facilities
– Training on modern mapping and surveying techniques
– Production of a big variety of different digital map products
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Aerial Photography
• Mapping areas and photography scales:
– The entire territory of Zanzibar at a scale of 1:25,000 (colourphotography)
– Four townships at a scale of 1:8,000
• Zanzibar Town
• Chake Chake
• Wete
• Mkoani
– Stone Town at a scale of 1:3,000
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Photography scales used in SMOLE:Photography scales used in SMOLE:
1:25,000 colour1:25,000 colour 1:8,000 colour1:8,000 colour 1:3,000 colour1:3,000 colour
Comparison of differentphotography scales
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Comparison of differentphotography scales
1:25,0001:25,000
1:8,0001:8,0001:3,0001:3,000
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Comparison of differentphotography scales
1:25,0001:25,000
1:8,0001:8,000
1:3,0001:3,000
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Stone Town Mapping Scale 1:500
• 3D stereo work done
• Corrections to topologygoing on
• For final map still a lotof work to do
• Ready in 4 months
• Cooperation withSTCDA
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UNGUJA Mapping Scale 1:2500
ZANZIBAR TOWN
All contours measured
45 000 buildingsmeasured
170 km road measured
Estimated time for
completing the workabout 6 months
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UNGUJA Mapping Scale 1:10,000
2D digitizing with Mapmakerprogram
• 65,000 buildings digitized
• 4700 km road digitized
• All roads done
• Topological checks done
• 95 % of buildings done
Contour measurements with StereoPlotter
Estimated time for completing
• stereo work 4 months
• 2D digitizing ( Land Use etc ) 3months