TOPOGRAPHY

Course objectives

The course will provide the basis for topographical survey. The planimetric and altimetric reference surfaces will be defined, together with the global and local reference systems and the transformations among these systems, as well as the relative cartographic representations. Furthermore an introduction will be provided into the tools and instruments for topographic surveying and into the statistical data processing methods for the relative observations. Participants shall achieve a thorough understanding of all reference systems (Datum) defined at national territority level with particular focus on the transformation problems between Datum. Furthermore participants shall be able to define the most adequate reference system for a specific survey and properly understand the modern measurement instruments in terms of usage, precision and application constraints. Finally they must be able to derive from the recorded observations the figures of interest with the relative precision

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MARIA ANTONIETTA MARSELLA Lecturers' profile

Program - Frequency - Exams

Course program
1. Methods and tools for topographic surveying 1.1. Measurements and methods for plano-altimetric surveying 1.2. Measurable quantities 1.3. Total station 1.4. Precision level 1.5. Satellite positioning systems 1.6. GPS signal characteristics 1.7. Measurements (phase and code) and associated errors 1.8. Absolute and relative positioning 2. Methods for the analysis of topographical observations 2.1. Local and global reference systems 2.2. Calculation of coordinates in local systems 2.3. Error analysis 2.4. Propagation of covariance 2.5. Observation Equations 2.6. Coordinate least squares estimate 2.7. Adjustments of classic topographic networks 2.8. Adjustments of GPS networks 3. Geodesy and Cartography 3.1. Elements of geodesy 3.2. Reference surfaces and Datums 3.3. Map projections and deformation modules 3.4. Conformal projection by Gauss 3.5. Cartographic system UTM, GB and WGS84 3.6. 2D and 3D numerical cartography elements
Prerequisites
None
Books
Books, notes and presentation distributed by the professor.
Frequency
In the classroom
Exam mode
Students process the data collected during the practical exercises with the tools (total station, electronic level and GPS) and take the oral test by presenting and discussing the results of the data analysis with particular reference to the quality of the measurements (analysis of statistical errors and compensation of the observations for the calculation of the coordinates with the least squares method). The oral exam concerns topographic techniques and tools, the theory of cartographic representation, the reading of technical maps and the functionality of the satellite positioning systems.
Lesson mode
Traditional teaching
MARIA ANTONIETTA MARSELLA Lecturers' profile
  • Lesson code1005052
  • Academic year2024/2025
  • CourseCivil Engineering
  • CurriculumIngegneria Civile (percorso formativo valido anche ai fini del conseguimento del doppio titolo italo-venezuelano)
  • Year3rd year
  • Semester1st semester
  • SSDICAR/06
  • CFU6
  • Subject areaIngegneria della sicurezza e protezione civile, ambientale e del territorio