Providing a well-maintained cycling infrastructure has a positive impact on the comfort and safety of cycling in road traffic and creates the conditions for its acceptance as an alternative to private or public transport. This study uses data from smartphone accelerometers and a k-means++ algorithm to determine the quality of road sections. This is easy and cost-effective to apply to large-scale cycling networks and shows in a case study for the city of Salzburg that poorly passable lane sections can be well localised and subsequently maintained in a targeted manner.
{"title":"Eine Bestimmung der Oberflächenqualität von Fahrradinfrastruktur durch Smartphone-Beschleunigungsdaten mithilfe des k-means++-Algorithmus / Determination of the Surface Quality of the Bicycle Infrastructure by Smartphone Acceleration Data Using the k-means++ Algorithm","authors":"Stefan Kranzinger, S. Leitinger","doi":"10.14627/537707013","DOIUrl":"https://doi.org/10.14627/537707013","url":null,"abstract":"Providing a well-maintained cycling infrastructure has a positive impact on the comfort and safety of cycling in road traffic and creates the conditions for its acceptance as an alternative to private or public transport. This study uses data from smartphone accelerometers and a k-means++ algorithm to determine the quality of road sections. This is easy and cost-effective to apply to large-scale cycling networks and shows in a case study for the city of Salzburg that poorly passable lane sections can be well localised and subsequently maintained in a targeted manner.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75958135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The research project “SmartUpLab” (https://smartuplab.de) of the FH Potsdam deals with participatory decision-making processes in the planning of future developments in urban areas. One goal is the generation of a digital city-model for a part of Potsdam (target area) using GAMA. With the help of QGIS several heterogeneous geodata were processed to equip the GAMA model. Exemplarily two workflows are presented here: Generation of Potential parking areas from the street layer of OpenStreetMap and the determination of averaged walking distances of elementary school-aged children to the nearest elementary school aggregated over statistical blocks.
{"title":"Geodaten für Mobilitätssimulationen - Verarbeitung von Open Geodata zum Einsatz im Simulationstool GAMA unter Verwendung von QGIS / Geodata for Mobility Simulations - Processing of Open Geodata for Use in the Simulation Tool GAMA with the Help of QGIS","authors":"Roy Popiolek, Diego Dametto, Anne Tauch","doi":"10.14627/537707012","DOIUrl":"https://doi.org/10.14627/537707012","url":null,"abstract":"The research project “SmartUpLab” (https://smartuplab.de) of the FH Potsdam deals with participatory decision-making processes in the planning of future developments in urban areas. One goal is the generation of a digital city-model for a part of Potsdam (target area) using GAMA. With the help of QGIS several heterogeneous geodata were processed to equip the GAMA model. Exemplarily two workflows are presented here: Generation of Potential parking areas from the street layer of OpenStreetMap and the determination of averaged walking distances of elementary school-aged children to the nearest elementary school aggregated over statistical blocks.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80533466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The quality of geodata on OpenStreetMap (OSM) is characterized by heterogeneity. Results of conventional approaches of quality assessment based on the comparison with reference data can thus not be applied to the entire dataset. Hence, the completeness of OSM data is usually analysed using intrinsic methods. Here, we propose a novel approach that consists in the generation of reference data via a regression model. Using demographic and socio-economic raster datasets and sporadically available GTFS data, the number of local bus routes is predicted on the cells of a global hexagon grid. The results are compared with the OSM dataset.
{"title":"Entwicklung eines Regressionsmodells für die Vollständigkeitsanalyse des globalen OpenStreetMap- Datenbestands an Nahverkehrs-Busstrecken / Development of a Regression Model for the Analysis of Local Bus Route Data Completeness on OpenStreetMap","authors":"Oliver Fritz, Michael Auer, A. Zipf","doi":"10.14627/537707025","DOIUrl":"https://doi.org/10.14627/537707025","url":null,"abstract":"The quality of geodata on OpenStreetMap (OSM) is characterized by heterogeneity. Results of conventional approaches of quality assessment based on the comparison with reference data can thus not be applied to the entire dataset. Hence, the completeness of OSM data is usually analysed using intrinsic methods. Here, we propose a novel approach that consists in the generation of reference data via a regression model. Using demographic and socio-economic raster datasets and sporadically available GTFS data, the number of local bus routes is predicted on the cells of a global hexagon grid. The results are compared with the OSM dataset.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76669001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Das Konzept der Graphen-Grammatik zur Formalisierung topologischer Veränderungen von Geo-Objekten / The Concept of Graph Grammars for Formalizing Topological Changes of Geo-Objects","authors":"J. Wittmann","doi":"10.14627/537698005","DOIUrl":"https://doi.org/10.14627/537698005","url":null,"abstract":"","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72414902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dashboard Radverkehr: alles im Blick / Bicycle Dashboard: Everything in View","authors":"Ulrike Brocza, S. Kollarits","doi":"10.14627/537698022","DOIUrl":"https://doi.org/10.14627/537698022","url":null,"abstract":"","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76225577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dimitri Falk, Adrian Treis, M. Braun, M. Hoffmann, E. Costa-Patry
Today’s generation of motor vehicles is equipped with numerous sensors collecting a variety of sensor data. These sensors are primarily designed to internally control miscellaneous comfort and safety functions but are also offering potential to be used externally in cross-sectoral applications, such as water management use cases. At this point, the general suitability of vehicle sensor data for realtime agglomeration of precipitation information using the example of Emscher and Lippe region is one of the key issues of the research project mobileVIEW. A major challenge in implementation in order to be able to conduct spatio-temporal adjustments of precipitation data is to derive valid precipitation values from vehicle sensor measurements. For this purpose, a decision tree trained with historical precipitation radar data is used to derive precipitation intensities from a combination of rain related measurements with additional environmental values based on the position of the vehicle. Emerging potential for runoff forecasting and heavy rainfall nowcasting is analysed within the operational flood early warning system based on Delft-FEWS.
{"title":"Ableitung von Echtzeit-Niederschlagsinformationen aus mobilen Kfz-Sensordaten / Derivation of Real-Time Precipitation Information Using Mobile Vehicle Sensor Data","authors":"Dimitri Falk, Adrian Treis, M. Braun, M. Hoffmann, E. Costa-Patry","doi":"10.14627/537698026","DOIUrl":"https://doi.org/10.14627/537698026","url":null,"abstract":"Today’s generation of motor vehicles is equipped with numerous sensors collecting a variety of sensor data. These sensors are primarily designed to internally control miscellaneous comfort and safety functions but are also offering potential to be used externally in cross-sectoral applications, such as water management use cases. At this point, the general suitability of vehicle sensor data for realtime agglomeration of precipitation information using the example of Emscher and Lippe region is one of the key issues of the research project mobileVIEW. A major challenge in implementation in order to be able to conduct spatio-temporal adjustments of precipitation data is to derive valid precipitation values from vehicle sensor measurements. For this purpose, a decision tree trained with historical precipitation radar data is used to derive precipitation intensities from a combination of rain related measurements with additional environmental values based on the position of the vehicle. Emerging potential for runoff forecasting and heavy rainfall nowcasting is analysed within the operational flood early warning system based on Delft-FEWS.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72419429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The digital age is inhomogeneous. There are several periods or phases of that age. In a first concept these periods are introduced. In a second concept abstract problems of GI processing are introduced to solve practical problems of the digital age. Additionally these problems are characterized by methodical geographical specialities. After this the two concepts are integrated in an example, where a train ride is analysed. The phases of the digital age and the contributions GI processing can make for a train ride are opposed. Finally it is discussed what can be done that GI processing can make a positive contribution to the digital age.
{"title":"Welchen Beitrag kann die Geoinformationsverarbeitung zur Entwicklung des Digitalen Zeitalters leisten? / What Contribution Can Geoinformation Processing Make to the Development of the Digital Age?","authors":"P. Mandl","doi":"10.14627/537698008","DOIUrl":"https://doi.org/10.14627/537698008","url":null,"abstract":"The digital age is inhomogeneous. There are several periods or phases of that age. In a first concept these periods are introduced. In a second concept abstract problems of GI processing are introduced to solve practical problems of the digital age. Additionally these problems are characterized by methodical geographical specialities. After this the two concepts are integrated in an example, where a train ride is analysed. The phases of the digital age and the contributions GI processing can make for a train ride are opposed. Finally it is discussed what can be done that GI processing can make a positive contribution to the digital age.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84396889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reconstructing spaces with lots of vegetation for the use in virtual tours is a challenging proposition for many common capture methods. Full reconstruction as a 3D-model becomes increasingly time-consuming, while volumetric scanning is prone to scanning artefacts. In this paper we present a method based on linked monoand stereo-panoramas, using as an example the botanical garden of Rostock. In addition to the basics of capture and presentation of these panoramas, we discuss how to include further multimedia content and how to guide user navigation. To ensure a high level of accessibility, we utilize current web technologies.
{"title":"Entwicklung einer Virtual Reality-Tour für den Botanischen Garten Rostock / Development of a Virtual Reality-Tour for the Botanical Garden of Rostock","authors":"Sarah Westphal, Markus Berger","doi":"10.14627/537698015","DOIUrl":"https://doi.org/10.14627/537698015","url":null,"abstract":"Reconstructing spaces with lots of vegetation for the use in virtual tours is a challenging proposition for many common capture methods. Full reconstruction as a 3D-model becomes increasingly time-consuming, while volumetric scanning is prone to scanning artefacts. In this paper we present a method based on linked monoand stereo-panoramas, using as an example the botanical garden of Rostock. In addition to the basics of capture and presentation of these panoramas, we discuss how to include further multimedia content and how to guide user navigation. To ensure a high level of accessibility, we utilize current web technologies.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80130400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Mittlböck, Laura Knoth, Caroline Atzl, Stefan Jaquemar, Clemens Naderer
The interest in 3D map visualizations is increasing, the need for spatial 3D analyzes, 3D city models, detailed 3D buildings for indoor positioning or 3D map models for the integration in Virtual/Augmented Reality (VR/AR) environments is increasing, too. A 3D basemap is the basis for different 3D map applications and can be used for overlays, analyzes or for realistic mapping of the entire environment. However, many of the available basemaps are currently available in 2D only. In this article, we present strategies for converting the freely available basemap.at from 2D to 3D. Therefore, the technical implementation and some design decisions for the digital terrain model (DTM), point data, line data and polygon data are described in more detail. As the result, we present two first prototypical implementations of basemap.at-3D – one in a simplified/schematic version and one in a more realistic version of a 3D basemap.
{"title":"3D-Grundkarten für Österreich - von basemap.at zu basemap.at-3D / 3D Basemaps for Austria - Towards Authoritative basemap.at 3D","authors":"M. Mittlböck, Laura Knoth, Caroline Atzl, Stefan Jaquemar, Clemens Naderer","doi":"10.14627/537698013","DOIUrl":"https://doi.org/10.14627/537698013","url":null,"abstract":"The interest in 3D map visualizations is increasing, the need for spatial 3D analyzes, 3D city models, detailed 3D buildings for indoor positioning or 3D map models for the integration in Virtual/Augmented Reality (VR/AR) environments is increasing, too. A 3D basemap is the basis for different 3D map applications and can be used for overlays, analyzes or for realistic mapping of the entire environment. However, many of the available basemaps are currently available in 2D only. In this article, we present strategies for converting the freely available basemap.at from 2D to 3D. Therefore, the technical implementation and some design decisions for the digital terrain model (DTM), point data, line data and polygon data are described in more detail. As the result, we present two first prototypical implementations of basemap.at-3D – one in a simplified/schematic version and one in a more realistic version of a 3D basemap.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76796483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：