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3D Risk Mapping approaches the community by contributing and
providing ‘ICT-supported learning training tools’ that can be used
and adopted by academic institutions in their current curriculum.
In the long term, this will improve the capacity that ‘spatial
information’ is acquired by adapting advanced three-dimensional
recording techniques, such as laser scanning. Spatial information is
a very important component for better ‘meet expectations that they
can improve decision making’, especially in studying the built
environment.?In addition, the project also seeks to link the needs
for risk awareness in studying the built environment and the
development in high precision measurement.
Risk management in this proposal is associated to the need of
identifying and/or characterizing ‘hazards’ posed by the current
state of our built environment. By improving the amount knowledge
gathered using these advanced mapping instruments the
characterization of those risks will be improve a better informed
decision will be taken. We propose the following didactic material
to contribute in better understanding our rich built environment.
General description of the didactic portal:
The theoretical part contains 4 chapters, can be
download on PDF:
- Chapter 1 serves as a general introduction to laser scanning
and the applications for which it can be used.
- Chapter 2 is a theoretical exposé of different laser scanner
types and how they work. It also explains the different
metrological aspects that need to be taken care when scanning
and clarifies their origin.
- Chapter 3 explains the process of performing a laser
scanning job. Every step of the process is explained in detail
providing tips and tricks based on expert experiences.
- Chapter 4 provides a view on the problem of data management.
Based on expert experiences, a set of meta-data tags is defined
that are important for the dissemination and archiving of laser
scanner data.
The second part of the tutorial contains 3 case
studies, each chosen to illustrate certain problems, benefits,
purposes and limitations of the used recording technique. Each of
the case studies focuses on different aspects of the laser scanning
process:
- Heritage Case Study (St.James Church): the heritage case
focuses both on the registration phase and the post processing
of the data. The scale of the church and the inside-outside
relationship provide an excellent challenge for linking scans
taken from different positions. On the other hand, the level of
detail requested and the required deliverables ask for a time
consuming post-processing phase using highly specialized
software.
- Industrial Case Study (FPSO vessel): this case study
explains the possibilities of using laser scanning in surveying
hazardous industrial sites. An extensive overview is given of
possible uses of the processed data during the engineering phase:
it also tackles the actual scanning itself using a software tool
that simulates a laser scanner, providing insight on how to
setup the scanner and settings the correct parameters.
- Civil Infrastructure Case Study (Hydroelectric Dam): this
case study describes the use of laser scanning data for
monitoring deformations over time. Since the scanner records
surfaces in stead of single points, it provides a higher
accuracy. Special focus is put on the determining the optimal
laser scanning and target locations and on comparing different
datasets for monitoring purposes.
Decision making flowcharts have been prepared and
are accessible for download in the contents of the portal. The
information hub provides access to relevant web
links about the didactic material and further reference material and
organizations around the world. |
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