Abstract
Abstract. The investigation on the built urban heritage and its current transformations can progressively benefit from the use of geospatial data related to urban environment. This is even more interesting when urban design studies of historical and stratified cities meet the contribution of 4D geospatial data within the urban morphology researches, aiming at quickly and accurately identifying and then measuring with a spatial relationship, both localized transformation (volumes demolitions, addition, etc…) and wide-scale substantial modification resulting from urban zones of diversification spaces that incorporates urban legacies. In this domain, the comparison and analysis of multi-source and multi-scale information belonging to Spatial Data Infrastructures (SDI) organized by Municipality and Region Administration (mainly, orthoimages and DSM and digital mapping) are a crucial support for multi-temporal spatial analysis, especially if compared with new DSMs related to past urban situations. The latter can be generated by new solution of digital image-matching techniques applicable to the available historical aerial images. The goal is to investigate the amount of available data and their effectiveness, to later test different experimental tools and methods for quick detection, localization and quantification of morphological macro-transformation at urban scale. At the same time, it has been examined the opportunity to made available, with up-and-coming Mobile Mapping Systems (MMS) based on image- and range-based techniques, a rapid and effective approach of data gathering, updating and sharing at validated urban scales. The presented research, carried out in the framework of the FULL@Polito research lab, applies to urban legacies and their regeneration, and is conducted on a key redevelopment area in northern Torino, the Parco Dora, that was occupied by steel industries actively working up to 1992. The long-standing steel structures of the Ferriere FIAT lot have been refurbished and incorporated in the new urban park, generating a contemporary space with a new evolving urban fabric, and being integrated in the new updated geo-spatial databases as well.
Highlights
In last decades, the use of geospatial data related to urban areas has been the basis for analysis and updating of digital maps city databases, with the aim of create or update urban objects representation with increasingly accurate systems as well as fast and automated algorithms (Rottensteiner, 2014)
The comparison and analysis of multi-source and multi-scale information belonging to Spatial Data Infrastructures (SDI) organized by Municipality and Region Administration are a crucial support for multitemporal spatial analysis, especially if compared with new Digital Surface models (DSM) related to past urban situations
Urban landscape is changing over years and architectural and urban design research recently foresee a recognized potential contribution to the urban morphology studies in the use of Geospatial Information Science (GIS) approach and geospatial data pertaining urban areas, to spatialize transformation, to investigate urban phenomena behaviour related to the anthropized society and to monitor their transformations into a wider scale (Katsikis, 2014; Brenner, 2014)
Summary
The use of geospatial data related to urban areas has been the basis for analysis and updating of digital maps city databases, with the aim of create or update urban objects representation with increasingly accurate systems as well as fast and automated algorithms (Rottensteiner, 2014). The applied geomatics role, considering these urban legacies as cases of awareness in the built urban environment, should get up from the building's scale and propose some reasoning and effective methods about a new fitting approaches for urban monitoring, what could be essentially available in a geospatial city database to map at different scales morphological changes over recent times. In this framework, the research is carried out in the northern area of Turin, the so-called Parco Dora, as a representative location that has been involved in the huge transformation of Spina. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLII-2/W11, 2019 GEORES 2019 – 2nd International Conference of Geomatics and Restoration, 8–10 May 2019, Milan, Italy of multi-temporal DSM for Change Detection (termed hereafter CD) for the location of micro- and macro-urban morphology transformation (Par. 3), and the possibility to operate in these noteworthy areas not accessible by means of car vehicles, with cutting edge solution of Mobile Mapping Systems (MMS) for image- and range-based urban 3D modelling (Par. 4)
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