With the help of the base map prepared using satellite image, the exact amount of congested pockets of settlement were identified. Gaothan / habitation and new development were marked on the map. Incorporation of missing features such as power line, telephone line, transmission line, main water supply lines, overhead tanks, other prominent public and semi-public buildings, commercial and industrial land, etc., were surveyed and marked on the map. Details obtained from the survey have been integrated and shown on the maps. The entire maps and satellite image were integrated into MapInfo GIS.
The ELU map has been prepared using the information from base map, satellite image classification and information from the detailed survey. The following layers of information were used in preparing the ELU map:
- Agricultural land
- Barren land
- Forest land
- Open spaces
- Plantation
- Play ground / stadium
- Cremation ground
- Residential land
- Commercial land
- Industrial land
- Water body
- Lakes / ponds
- Public / semi-public buildings, post office, police station, town halls, park, dispensary, schools, banks, cultural / religious buildings, educational buildings
- Transportation network details
- Roads
- Railways
- Bus / Railway station
- Truck terminus
- Miscellaneous features
- Well, overhead tank, etc.
Creation of 3D Model
Using SOI contour information, were interpolated for 5-10 m contour interval and a 3D-digital terrain model was created using the contour information. The map information was then overlaid onto the 3D model.