GIS mapping of driving behavior based on naturalistic driving data

Este artigo pertence ao número especial Smart Cartography for Big Data Solutions.[Abstract:] Naturalistic driving can generate huge datasets with great potential for research. However, to analyze the collected data in naturalistic driving trials is quite complex and difficult, especially if we consider that these studies are commonly conducted by research groups with somewhat limited resources. It is quite common that these studies implement strategies for thinning and/or reducing the data volumes that have been initially collected. Thus, and unfortunately, the great potential of these datasets is significantly constrained to specific situations, events, and contexts. For this, to implement appropriate strategies for the visualization of these data is becoming increasingly necessary, at any scale. Mapping naturalistic driving data with Geographic Information Systems (GIS) allows for a deeper understanding of our driving behavior, achieving a smarter and broader perspective of the whole datasets. GIS mapping allows for many of the existing drawbacks of the traditional methodologies for the analysis of naturalistic driving data to be overcome. In this article, we analyze which are the main assets related to GIS mapping of such data. These assets are dominated by the powerful interface graphics and the great operational capacity of GIS software

GNSS. Geodesia espacial y Geomática

Nuestra sociedad ya depende, en gran medida, de la disponibilidad de servicios de Posicionamiento, Navegación y Cronometraje (PNT) generados por los sistemas GNSS de la misma manera que dependemos de la electricidad y las telecomunicaciones. El Sistema de Posicionamiento Global GPS y, más ampliamente los Sistemas de Navegación por Satélite GNSS, son la principal fuente de posicionamiento, navegación y temporización (PNT). En este libro se abordan los principios fundamentales sobre GNSS. Se inicia con una introducción de la geodesia satelital y los marcos de referencia, para entrar en detalle en las orbitas de los satélites GNSS. Se continua con los fundamentos y constelaciones GNSS, con especial detalle GPS y GALILEO, pero también se explican los otros sistemas globales BeiDou y Glonass y regionales. A continuación, se tratan los modelos matemáticos de tratamiento de la señal, así como análisis estadístico de resultados y su aplicación a redes tanto topográficas, como de alta precisión o geodinámicas. Se desarrolla con detalle el GNSS diferencial, tanto de carácter local RTK, NTRIP como GNNS diferencial de grandes áreas, también EGNOS o empresas privadas. Además, se trata el PPP, tanto fundamento, como proveedores de servicios, se dedica un capítulo al uso de los teléfonos inteligentes como receptores GNSS de bajo coste, y en un capítulo se trata con carácter general, altimetría satelitalBerné Valero, JL.; Garrido Villén, N.; Capilla Romá, R. (2023). GNSS. Geodesia espacial y Geomática. Editorial Universitat Politècnica de València. http://hdl.handle.net/10251/19398

Jurisdictional boundaries in Spain, survey and marking of boundaries in Teruel (Spain)

In the 1890 s and early 1900s, the National Geographic Institute (IGN) of Spain carried out geodetic studies required to georeference the boundaries of every single municipality in Spain, survey the boundaries and mark them out. The field notes for these studies still exist and can still be referenced today. Nowadays, most of the landmarks that were located in these studies have disappeared; replacing these monuments could be of great interest to the local government, both administratively and economically. The indeterminacy or change of municipal boundaries can lead to tax collection and even supply problems. This paper studies the accuracy of those studies. Furthermore, a technical method for locating the lost monuments is shown; this method could also be used to map the monuments in a precise and reliable way. In this way, the problem of replacing boundaries is subsequently analysed.Garrido-Villén, N.; Berné Valero, JL.; Antón Merino, A.; Anquela Julián, AB. (2014). Jurisdictional boundaries in Spain, survey and marking of boundaries in Teruel (Spain). Survey Review. 46(336):205-212. doi:10.1179/1752270613Y.0000000071S20521246336Berné J. L.et al. 2008. Catastro en España, Ed. UPV, Valencia.Capdevila i Subirana J. 2005. Treballs de la SCG, 60.Collier, P. (2009). International Boundary Surveys and Demarcation in the Late 19thand Early 20thCenturies. Survey Review, 41(311), 2-13. doi:10.1179/003962608x325457Dale, P. F. (2006). Reflections on the Cadastre. Survey Review, 38(300), 491-498. doi:10.1179/sre.2006.38.300.491Demir, O., Uzun, B., & Çete, M. (2008). Turkish cadastral system. Survey Review, 40(307), 54-66. doi:10.1179/003962608x253484Dirección General del Catastro, www.catastro.meh.es/esp/normativa1.asp?lu = m6&im = m6i#menu1_3 (accessed 23 June 2010).Fábrega Golpe J.et al. 2007. Proyecto que desarrolla de la Metodología para la optimización de la base de datos de líneas límite del Instituto Geográfico NacionalNational Geographical Institute of Spain (IGN), http://www.fomento.es/MFOM/LANG_CASTELLANO/DIRECCIONES_GENERALES/INSTITUTO_GEOGRAFICO/Geodesia/ (accessed 19 October 2010).Pirti, A., Arslan, N., Deveci, B., Aydin, O., Erkaya, H., & Hosbas, R. G. (2009). Real-Time Kinematic GPS for Cadastral Surveying. Survey Review, 41(314), 339-351. doi:10.1179/003962609x45158

La actualidad catastral en Venezuela

Berné Valero, JL.; Femenia Ribera, C.; Camargo Sánchez, SDJ. (2005). La actualidad catastral en Venezuela. CT. Catastro. 55(55):41-49. http://hdl.handle.net/10251/38691S4149555

Analysis of the current situation of Geodesy Network and Cartography in Venezuela

Se estudia la situación en que se encuentran los municipios que conforman al Estado Venezolano, después de la promulgación de la Ley de Geografía, Cartografía y Catastro Nacional del año 2000, dentro del área de competencias del Instituto Geográfico de Venezuela Simón Bolívar (IGVSB), como organismo gestor de la actividad geodésica, cartográfica y de catastro del Estado. Se pretende conocer la situación del municipio en cuanto a materia de red geodésica y cartografía; para el conocimiento, organización y desarrollo de su gestión local. El análisis se desarrolla a través de una encuesta (año 2007), con una muestra del 20% de los municipios del país, que revela la situación actual de dichos municipios y sus perspectivas de cumplir con las exigencias de los condicionantes de las normas técnicas dictadas por InstitutoThe article discusses the situation of the municipalities that make up the Venezuelan State, after the enactment of the Law of Geography, National Mapping and Cadastre 2000, within the area of competence of the Geographical Institute of Venezuela Simón Bolívar (IGVSB) as managing body of the activity geodesy, cartography and cadastre of the State. The aim is to know the situation of the municipality as to matters of geodetic network and mapping; for the knowledge, organization and development of its local management. The analysis was developed through a survey (year 2007), with a sample of 20% of the country¿s municipalities, which shows the current status of these municipalities and their prospects for fulfilling the demands of the constraints of technical standards issued by the Institute.Camargo Sánchez, SDJ.; Femenia Ribera, C.; Berné Valero, JL. (2008). Análisis de la situación actual de la Red Geodésica y la Cartografía en Venezuela. Mapping. Abril-M:1-10. http://hdl.handle.net/10251/38817S110Abril-M

Land surveyors as expert witnesses in real estate litigation matters in Spain (Izvedeniska Dejavnost na Podroèju Nepremiénin v Spaniji)

This article describes expert opinion and expert reports commonly requested by courts and lawyers in those technical disciplines related to real estate, within the framework of the current Spanish legislation. As established in Spanish Civil Code Article 348 ¿property means the right to possess, enjoy and dispose of anything of value with no limitations other than those established by law. In addition, the owner is entitled to claim property ownership as its holder and its possessor¿. This regulation has resulted in many litigation proceedings in Spain. Performance appraisal reports can be of aid to non-judicial experts and lawyers in relation to technical issues and can at times be decisive.Garrido-Villén, N.; Antón Merino, A.; Berné Valero, JL.; Femenia Ribera, C. (2013). Land surveyors as expert witnesses in real estate litigation matters in Spain (Izvedeniska Dejavnost na Podroèju Nepremiénin v Spaniji). Geodetski Vestnik. 57(1):66-84. doi:10.15292/geodetski-vestnik.2013.01.066-084S668457

Kinematic GNSS-PPP results from various software packages and raw data configurations

[EN] In this study, kinematic precise point positioning (PPP) was tested. The raw data were taken from permanent stations, two airplane trajectories, a car trajectory and a walking trajectory. International GNSS Service (IGS) final products were used in the post-processing phase. The observations were processed using four different on-line software packages: the Canadian Spatial Reference System On-line Global GPS Processing Service (CSRS-PPP), the GPS Analysis and Position Software (GAPS), the Automatic Precise Positioning Service (APPS) and the Magic Global Navigation Satellite System (MagicGNSS). The results and comparisons are described in detail. The main conclusion is that an accuracy better than 10 cm for the planimetric measurements and better than 20 cm for the altimetric measurements can be achieved using the kinematic PPP method in any of the proposed tests. However, at present, the success of the technique is affected by the software used, and differences at the 0.5 m level can be found for the same specific epoch.This research is supported by the Spanish Science and Innovation Directorate project number AYA2010-18706.Martín Furones, ÁE.; Anquela Julián, AB.; Berné Valero, JL.; Sanmartín, M. (2012). Kinematic GNSS-PPP results from various software packages and raw data configurations. Scientific Research and Essays. 7(3):419-431. https://doi.org/10.5897/SRE11.1885S4194317

GNSS-retrieved precipitable water vapour in the Atlantic coast of France and Spain with GPT3 model

[EN] Water vapour is a critical atmospheric parameter to understand the Earth's climate system and it is characterized by a complex variability in time and space. GNSS observations have become an important source of information of the water vapour, thanks to its high temporal and spatial resolution. However, the lack of meteorological sites collocated with the GNSS site could hamper water vapour retrieval. The empirical blind models can fill this gap. This study analyses the temporal and spatial distribution of the water vapour using nine GNSS sites located on the Atlantic coast of Spain and France, with the empirical blind model GPT3 as the source of meteorological information. The observations were processed with Bernese 5.2 software on a double difference approach and validated with Zenith Total Delay EUREF REPRO2 values. Consequently, four-years series of water vapour was determined and validated using two matched radiosonde sites. The characterization of the water vapour on the area shows clear seasonal characteristics that the technique captures, using an empirical blind model for the whole process. Maximum values are observed in summer season and minimum in winter. The PWV tends to decrease with increasing latitude in the area of the study. The short-term variations can be reproduced by the high temporal resolution of the GNSS-retrieved water vapour and show a different behaviour over the area, but a similar pattern with a peak in the afternoon and minimum at night was found. Also, less variability is observed in winter season and higher in summertime.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature.Perdiguer-Lopez, R.; Berné Valero, JL.; Garrido-Villén, N. (2023). GNSS-retrieved precipitable water vapour in the Atlantic coast of France and Spain with GPT3 model. Acta Geodaetica et Geophysica. 58(4):575-600. https://doi.org/10.1007/s40328-023-00427-657560058