SMOLE Mapping Component - Alukats-den.aluka.org/fsi/img/misc/pdf/CHWorkshop/MariaNaseeb.pdf1 SMOLE Mapping Component • Purpose of the component is to support mapping in Zanzibar

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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