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It is widely accepted that old cadastral maps have multiple uses, such as reestablishing cadastral parcel boundaries, municipality boundaries, and coastal limits, or conducting historical, economic, and social studies. In Spain, the Directorate General for Cadastre, and the National Geographic Institute, has numerous digitized old maps that are accessible to users. In the Comunidad Valenciana, the georeferencing of certain series of old cadastral maps is being carried out in phases, which is one of the subjects of this study. A metric analysis of two series of old cadastral maps from a municipality was conducted. One of the series was georeferenced by the Valencia Provincial Cadastre Office, while the other was georeferenced in this research. Additionally, a spatial data infrastructure (SDI) was created, providing WMS, catalog, and document download services. Metadata were also published, containing information about the source, digitalization process, georeferencing, and achieved accuracy, following the ISO 19115 standard for geographic metadata. Furthermore, through individual and group interviews, participatory social research was conducted, to assess the use of old cadastral maps and the created SDI services, aiming to understand the users' appreciation of the services. The results of the social research indicate that the SDI services created are highly valued, but certain conditions need to be met to ensure their effective use by the general public in order to avoid misuses and misinterpretations. [ABSTRACT FROM AUTHOR]

This work goal is to evaluate the use of cadastral information -geographical and literal- to determine and quantify the changes in crop types between two dates. The changes in an agricultural area of the Alboraya municipality since 1930 are studied. As information source, the cadastral parcel data of the cadastral polygon 4 of the municipality is studied. The Topographical Cadastral Map (TCM) of 1930 is used as old cadastral information, and the associated listing of parcels in paper format. This old information is compared with the current cadastral information. This research compares the crops registered on both dates. Along the process, the factors, characteristics and conditions to accomplish by the information of the study are also studied - availability, format, age, production technique, and georreferencing- to evaluate the method's advantages and limitations. As conclusion, remark on the utility of the old cadastral maps to detect crop changes. The TCM use allows quantifying and delimitating the produced changes in each territory element with detail. [ABSTRACT FROM AUTHOR]

The public-private partnership in the process of recovery and geometric improvement of the municipal boundary lines has the duality of motivating the economic activities of pro-fessionals, as well as accelerate their process of technical regularization. In the case of Alberic and Gavarda municipal boundary line, in Valencia (Spain), a public-private partner-ship was carried out based on the proposed solutions, continuing with the technical work of reconnaissance of existing cairns, observation and redesign of those missing, as well as the sign of the Additional Minute to the Delimitation Minute, carried out in 1903, plenary endorsement and subsequent registration in the Cartography Central Register. [ABSTRACT FROM AUTHOR]

The old cadastral maps of the Spanish General Directorate for Cadastre (DGC) have always been in great demand. It was decided in 2012 to make an initial inventory of these maps with the type of information available, physical location, and condition. Subsequently, to evaluate their possible use, the inventory was examined to investigate whether these maps could be geographically referenced and made available on a geoportal. Several years later, it was determined that the inventory needed to be updated with a series of improvements (expanding the fields so that they become clearer, homogeneous, and more easily handled by software). A questionnaire was issued to technical specialists on property boundaries. As a principal conclusion we can highlight that the use of old cadastral maps in Spain is of great importance. The information on these maps is widely demanded by technical and legal experts who consider that an update and revision of the DGC inventory is essential. It is crucial that old cadastral maps are digitised and made available online, preferably free of charge and through an easy-to-use geoportal. The information on these maps helps to resolve property boundary disputes and has many other uses. Investment in the economic and human resources needed to preserve and publish these maps is essential given their great value. • Inventory of available cadastral maps. • Survey on the use of old cadastral maps. • Old cadastral maps used to help resolve property boundary disputes. • Old maps in Spain. • Maps accessible through a geoportal. [ABSTRACT FROM AUTHOR]