High Resolution 1:10,000 scale Mapping Strategy of Multi ... - NDMA

Survey of India is already in possession of 1: 50,000 scale maps. However,
these maps cannot support the requirement of present users. Detailed features are not
available in these maps. It is not possible to represent details like utility buildings such
as hospitals, schools, police stations, fire stations, government offices etc. But these
features are imperative for risk assessment and disaster management. It is also
essential to depict roads on these maps for microzonation and development of
vulnerability and hazard maps. During any disaster scenario, it is essential to visualize
the access roads and probability of their closure for relief and rescue planning. It is also
essential to map various layers of utilities including population density for final planning
of effects of any disaster and rehabilitation planning after the disaster.
The proposed 1:10,000 and 1:2,000 National Topographic Database (NTDB) are
a major initiative for heralding a geospatial decision support system at local, state and
national levels. The primary objective is to provide geospatial data for advanced
geospatial tools and applications that are required for improving the land, water,
infrastructure and other essential resources. Moreover, mapping at these scales were
considered necessary and some attempts were made as well.
MAPPING AT 1:10,000 SCALE
The methodology of mapping is based on job specification and deliverables given
in the tender document. For more details , please refer to Annex- I.
Mapping at 1:10,000 scale with 1 meter contour interval (C.I), considering the
guideline provided in the new National Map Policy and confirming to the National
Topographical Database (NTDB) :
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