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Spatial analysis of subway passenger traffic in Saint-Petersburg / Tatiana Baltyzhakova in Geodesy and cartography, vol 47 n° 1 (January 2021)  

Public [article]  inGeodesy and cartography > vol 47 n° 1 (January 2021) . - pp 10 - 20 Titre : Spatial analysis of subway passenger traffic in Saint-Petersburg Type de document : Article/Communication Auteurs : Tatiana Baltyzhakova, Auteur ; Aleksei Romanchicov, Auteur Année de publication : 2021 Article en page(s) : pp 10 - 20 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] Blender [Termes IGN] diagramme de Voronoï [Termes IGN] flux [Termes IGN] Mapbox [Termes IGN] modèle numérique de surface [Termes IGN] planification urbaine [Termes IGN] QGIS [Termes IGN] R (langage) [Termes IGN] Saint-Petersbourg [Termes IGN] trafic [Termes IGN] transport public Résumé : (auteur) The purpose of the paper is to create clear visualization of passenger traffic for Saint Petersburg subway system. This visualization can be used to better understand the passenger flow and to make more informed decisions in future planning. Research was based on officially published information about passenger traffic on subway station for years 2016 and 2018. Visualization was created with the variety of methods and software: Voronoi diagrams (QGIS software), social gravitation potential (R programming language), presentation of gravitation potential as a relief (Blender software), service zones of ground transport accessibility (2GIS, QGIS and Mapbox mapping platform). In this research, authors propose the use of intersection between the service zones and social gravitation potential isolines as an instrument for spatial analysis of traffic data. Analysis shown that current development of subway system does not correspond to passenger distribution. All stations were classified according to their accessibility and propositions about future directions of development were made. Numéro de notice : A2021-451 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3846/gac.2021.11980 Date de publication en ligne : 12/03/2021 En ligne : https://doi.org/10.3846/gac.2021.11980 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97869 [article]

Mean monthly series of sea level observations (1777-1993) at the Kronstadt gauge / V. Bogdanov (2000)

Public Titre : Mean monthly series of sea level observations (1777-1993) at the Kronstadt gauge Type de document : Rapport Auteurs : V. Bogdanov, Auteur ; M. Medvedev, Auteur ; V. Solodov, Auteur ; et al., Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 2000 Collection : Reports of the Finnish Geodetic Institute num. 2000- Importance : 34 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-951-711-237-6 Note générale : Bibliographie note : no de collection = 2000-1 Langues : Anglais (eng) Descripteur : [Termes IGN] dix-huitième siècle [Termes IGN] dix-neuvième siècle [Termes IGN] données marégraphiques [Termes IGN] Saint-Petersbourg [Termes IGN] série temporelle [Termes IGN] vingtième siècle [Vedettes matières IGN] Altimétrie Résumé : (Auteur) The versions of mean monthly (MMSL) and mean annual (MYSL) sea level observation series for 1777-1993 at the Kronstadt gauge and for 1989-1993 at its Shepelevo duplicate (Baltic Sea, Gulf of Finland, Isle of Kotlin, Russia) are submitted for the first time. The archival, fund and published materials of the State Hydrographical Service of the Navy, State Hydrometeorological Service, State Geodetic Service, Russian Academy of Sciences are used. The Kronstadt gauge is the oldest sea level station of Russia, which zero point is accepted as the Initial Point of the State Levelling Network and the Origin of National (“Baltic”) System of Heights. The basic information about the tide gauges, sea level observations, datum level, geodetic control and methods of restoration of long-term series is given. Some results and prospects of the further works are discussed. Note de contenu : 1 Introduction 2 Brief historical information on the sea level observations in the region 3 Basic knowledge of the Kronstadt and Shepelevo gauges and peculiarities of secular series restoration methods 4 Description of mean monthly series (1777-1993) at the Kronstadt gauge 5 Description of mean monthly series (1988-1993) at the Shepelevo duplicate of the Kronstadt gauge 6 Brief characteristic of sea level series 7 Conclusion Numéro de notice : 14651 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=40591