International cooperation and technology transfer

Fras, Mojca Kosmatin

Bibliographic data

Monograph

Persistent identifier:: 856490555

Author:: Fras, Mojca Kosmatin

Title:: International cooperation and technology transfer

Sub title:: Ljubljana, Slovenia, February 2 - 5, 2000 : proceedings of the workshop

Scope:: VI, 163 Seiten

Year of publication:: 2000

Place of publication:: London

Publisher of the original:: RICS Books

Identifier (digital):: 856490555

Illustration:: Illustrationen, Diagramme

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: G.P.S. AND G.I.S. FOR REALIZATION AND GOVERNMENT OF ROAD CADASTRE. Giuseppe Mussumeci

Document type:: Monograph

Structure type:: Chapter

G.P.S. AND G.I.S. FOR REALIZATION AND GOVERNMENT OF ROAD CADASTRE Giuseppe Mussumeci Researcher, Faculty of Engineering, Catania, Italy ISPRS WG VI/3 KEY WORDS: GPS, GIS, Roads, Cadastre ABSTRACT The road system plays a strategic role for the global analysis of the territory and a correct understanding of it is very important for the management of ordinary and emergency situations. In this note a methodological approach is proposed for the realization of a Road Cadastre using the differential kinematic Global Positioning System for the survey of road geometry and the Geographical Information System for data management. After a preliminary definition of the geographical database characteristics, road elements that have importance for the Cadastre and that interact with the territorial system and, in particular, with risk and emergency management, are analyzed. A road cadastre organization on the basis of current G.I.S. technology is proposed. 1. ROAD CADASTRE AND ITS USEFULNESS The road cadastre can be seen, in a simple way, as the cataloguing of all the road infrastructures and works correlated elements (structures, equipment, ancillary works, etc.) present in the territory. However, it should be seen as the basis of the Road Information System of which every proprietor should have for a correct management of the road network. From this point of view, it assumes the value of a functional support for the management of the road network and the planning for its development. Its construction needs, essentially, the following: □ A training process, aimed at acquiring, archiving and representing, with cartographic support and databases, the elements that characterize geometric properties of the road network; □ A management process, which organizes and up dates the collected information, for their use in functional classification of the road network, maintenance planning, and investment planning. The primary objective of the management of an road infrastructure is, today more than ever, safety. The current high number of accidents and victims that are recorded on the roads is not acceptable by a modern society that needs the road network so much for social and economical development. It is therefore necessary to have the instruments that at least “know” of the road network or, better still, are a real support for decision making. In general, in fact, today it is possible, structuring the information in a correct way, “shaping” the territory into a Geographical Information System. 2. BASIC CARTOGRAPHY Numeric cartography is certainly the ideal support for Geographical Information Systems. The geo- referencing of the represented objects and the absence of limitations in the memorization of elements and attributes allows an information content of great interest. Maps can be designed in such a way as to respond to many needs of G.I.S., allowing, for example, through their consultation the qualification of the elements of most interest and the identification of the logical and spatial correlation between them. In particular, in the case of a G.I.S. oriented to Road Infrastructures management, cartographic production must be finalized for the close examination of the “information-communication level” and the measurement of all the elements of the territory that interfere with the road network. The nominal scale will naturally be identified in function of the finality of the G.I.S. and will characterize the map in relation to its information content. The memorization of data, finally, must be carried out respecting the precise logic of aggregation and representation of the territorial and road elements, which take into account the particular aspects of the infrastructure system and its relation with the territory 2.1. Geodetic reference In general, the cartography of a country is placed geodetically with respect to a national reference ellipsoid, that, even when it coincides from the geometric point of view with Hayford’s ellipsoid, is orientated differently. The necessity to uniform, on an international scale, the geodetic reference, for the obvious consequential advantages in terms of univocal “reading” of the different national cartography and for simplification (if not elimination) of the procedure of transfer of cartographic information between connecting countries, finds in the WGS84 reference systems and satellite sampling ideal instruments. Therefore, even if each country has its own system of national cartography and its own cadastral cartographic tradition (land and buildings census), which do not always have the same geodetic reference (as in Italy, where national cartography and cadastral cartography are referred to two different ellipsoids, with the obvious

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