Covering a 60-hectare area, DSM Soft created the Enham Alamein digital
vector map at a 1:500 mapping scale using inputs from color digital aerial
photography. The goal of this project in Enham Alamein, United Kingdom, was
to produce a large-scale, geometrically accurate land base map to be used as a
basis for community planning developments and infrastructure.
The features to be mapped were divided into four groups: buildings and
structures; roads and boundaries; hydro, vegetation canopy, and contour; and
railways and symbols. Each group was captured for the 3D model by using
Summit Evolution photogrammetry integrated with MicroStation GeoGraphics.
Spatial Accuracy Improvement
Advancements in GIS and GPS technologies have been pivotal to utilities for
improving the positional accuracy of their physical asset management systems.
To better manage and maintain utility services, information about above ground
and underground assets must be accurate or assets can be damaged during
excavation, replacement, or relocation.
Because issues related to data format, projection systems, network topology,
and positional accuracy can render data useless, Hyderabad, India-based
RMSI migrated to an enterprise GIS-driven asset management system using
MicroStation GeoGraphics and Bentley Descartes. Various algorithms provided
smooth data migration to ensure positional alignment of facilities with
reference to the more accurate land base, and Bentley solutions interoperated
with the Oracle database.