Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-41-2023
A. Schwering, J. Krukar, Jana Seep, Yousef Qamaz
Abstract. For a long time, research has investigated spatial behaviour of people in navigation research and identified different wayfinding strategies. Researchers agree, that the environment with its structure and features influences the wayfinding strategies. The present paper presents a tool to investigate people’s strategies during navigation tasks. GeoGami, an educational geogame fostering navigational map reading skills, can be used to collect trajectories of people navigating through an environment. We developed a semantically annotated representation of the environment and clustered the resulting trajectories according to their spatio-temporal and semantic similarity. The result shows the existence of groups of common spatial patterns along with individual spatial behaviours that cannot be grouped into a cluster.
{"title":"Individualization in Spatial Behaviour and Map Reading","authors":"A. Schwering, J. Krukar, Jana Seep, Yousef Qamaz","doi":"10.5194/agile-giss-4-41-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-41-2023","url":null,"abstract":"Abstract. For a long time, research has investigated spatial behaviour of people in navigation research and identified different wayfinding strategies. Researchers agree, that the environment with its structure and features influences the wayfinding strategies. The present paper presents a tool to investigate people’s strategies during navigation tasks. GeoGami, an educational geogame fostering navigational map reading skills, can be used to collect trajectories of people navigating through an environment. We developed a semantically annotated representation of the environment and clustered the resulting trajectories according to their spatio-temporal and semantic similarity. The result shows the existence of groups of common spatial patterns along with individual spatial behaviours that cannot be grouped into a cluster.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117216722","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-28-2023
I. Ismayilova, S. Timpf
Abstract. Urban Green Spaces (UGSs) are recognized as crucial parts of the human-nature ecosystem in densely populated urban centers. Even though they have been intensively studied, an ultimate list of all types of UGSs in Europe still does not exist. This challenges decision making on whether an area should be considered an UGS or belong to another land-use class. Furthermore, the means of precise identification of UGSs are dependent, among others, on their type and semantics. Therefore, in this paper, we investigate forests as UGSs and automatically identify them using their distinct characteristics from Sentinel-2 images as well as descriptive properties derived from them, i.e., vegetation indices and texture metrics.We enrich these properties with forest relevant features such as minimum vegetation height and homogeneity. To assess the reliability of the proposed workflow, we test our approach in two German cities and compare the results with existing governmental land use data sets. With the implemented approach we precisely identify over 90% of the existing forests in the study areas. The main restriction of the approach is the transferability of the thresholds of predictor variables such as homogeneity and dissimilarity.
{"title":"Semantic Identification of Urban Green Spaces: Forest","authors":"I. Ismayilova, S. Timpf","doi":"10.5194/agile-giss-4-28-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-28-2023","url":null,"abstract":"Abstract. Urban Green Spaces (UGSs) are recognized as crucial parts of the human-nature ecosystem in densely populated urban centers. Even though they have been intensively studied, an ultimate list of all types of UGSs in Europe still does not exist. This challenges decision making on whether an area should be considered an UGS or belong to another land-use class. Furthermore, the means of precise identification of UGSs are dependent, among others, on their type and semantics. Therefore, in this paper, we investigate forests as UGSs and automatically identify them using their distinct characteristics from Sentinel-2 images as well as descriptive properties derived from them, i.e., vegetation indices and texture metrics.We enrich these properties with forest relevant features such as minimum vegetation height and homogeneity. To assess the reliability of the proposed workflow, we test our approach in two German cities and compare the results with existing governmental land use data sets. With the implemented approach we precisely identify over 90% of the existing forests in the study areas. The main restriction of the approach is the transferability of the thresholds of predictor variables such as homogeneity and dissimilarity.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120936681","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-40-2023
Simon Schröder, J. Stenkamp, Michael Brüggemann, Benjamin Karic, J. Verstegen, C. Kray
Abstract. Studies where participants interact with their environment are necessary, for example to investigate pedestrian behaviour, in urban planning or for environmental studies. Existing methods such as field studies or 3D virtual reality environments frequently require a lot of effort to create realistic 3D worlds or are subject to real-world interferences. In this paper we propose an alternative approach that uses an immersive video environment (IVE) and a dynamic scene generator (DSG).We use overlays to dynamically generate video scenes to facilitate studying specific combinations of environmental factors with participants. We report on an initial case study in the context of studying pedestrian behaviour, where we show how the approach can facilitate studying how crowds and pedestrian signage affect route choices. Our approach can help researchers studying human-environment interactions in the lab.
{"title":"Towards dynamically generating immersive video scenes for studying human-environment interactions","authors":"Simon Schröder, J. Stenkamp, Michael Brüggemann, Benjamin Karic, J. Verstegen, C. Kray","doi":"10.5194/agile-giss-4-40-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-40-2023","url":null,"abstract":"Abstract. Studies where participants interact with their environment are necessary, for example to investigate pedestrian behaviour, in urban planning or for environmental studies. Existing methods such as field studies or 3D virtual reality environments frequently require a lot of effort to create realistic 3D worlds or are subject to real-world interferences. In this paper we propose an alternative approach that uses an immersive video environment (IVE) and a dynamic scene generator (DSG).We use overlays to dynamically generate video scenes to facilitate studying specific combinations of environmental factors with participants. We report on an initial case study in the context of studying pedestrian behaviour, where we show how the approach can facilitate studying how crowds and pedestrian signage affect route choices. Our approach can help researchers studying human-environment interactions in the lab.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"98-B 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128477163","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-29-2023
Yuhao Jiang, M. Lobo, S. Christophe, C. Jouffrais
Abstract. Street intersections are very challenging for people with visual impairments. Manually produced tactile maps are an important support in teaching and assisting independent journeys as they can be customized to serve the visually impaired audience with diverse tactile reading and mobility skills in different use scenarios. But the manual map production involves a huge workload that makes the maps less accessible. This paper explores the possibility of semi-automatically producing customizable tactile maps for street intersections. It presents a parameterized semi-automated pipeline based on OSM data that allows the maps to be customized in size, map features, geometry processing choices, and symbolizations. It produces street intersection maps in two scales of three sizes, with different levels of details and styles.
{"title":"Semi-automated Pipeline to Produce Customizable Tactile Maps of Street Intersections for People with Visual Impairments","authors":"Yuhao Jiang, M. Lobo, S. Christophe, C. Jouffrais","doi":"10.5194/agile-giss-4-29-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-29-2023","url":null,"abstract":"Abstract. Street intersections are very challenging for people with visual impairments. Manually produced tactile maps are an important support in teaching and assisting independent journeys as they can be customized to serve the visually impaired audience with diverse tactile reading and mobility skills in different use scenarios. But the manual map production involves a huge workload that makes the maps less accessible. This paper explores the possibility of semi-automatically producing customizable tactile maps for street intersections. It presents a parameterized semi-automated pipeline based on OSM data that allows the maps to be customized in size, map features, geometry processing choices, and symbolizations. It produces street intersection maps in two scales of three sizes, with different levels of details and styles.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129311115","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-9-2023
Eva Nuhn, K. Hamburger, S. Timpf
Abstract. Conventional navigation systems use visually perceptible landmarks to navigate their users from a starting point to a destination. However, sometimes visual information is not enough for route guidance. Visually-impaired or elderly people may not be able to navigate using the visual sense. Furthermore, there may exist no outstanding (i.e., salient) visual landmarks that could be used to navigate. In such a case auditory information may be a helpful guide. We performed two online studies and a focus-group interview to identify possible sound classes in an urban environment. Based on our results, we gathered sounds in Augsburg and classified them according to their source. The findings support our notion that auditory information can be useful for spatial orientation and guidance in addition to or even replacing visual information.
{"title":"Urban Sound Mapping for Wayfinding – A theoretical Approach and an empirical Study","authors":"Eva Nuhn, K. Hamburger, S. Timpf","doi":"10.5194/agile-giss-4-9-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-9-2023","url":null,"abstract":"Abstract. Conventional navigation systems use visually perceptible landmarks to navigate their users from a starting point to a destination. However, sometimes visual information is not enough for route guidance. Visually-impaired or elderly people may not be able to navigate using the visual sense. Furthermore, there may exist no outstanding (i.e., salient) visual landmarks that could be used to navigate. In such a case auditory information may be a helpful guide. We performed two online studies and a focus-group interview to identify possible sound classes in an urban environment. Based on our results, we gathered sounds in Augsburg and classified them according to their source. The findings support our notion that auditory information can be useful for spatial orientation and guidance in addition to or even replacing visual information. \u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130385951","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-47-2023
Sibe van den Beukel, E. Verbree, P. van Oosterom
Abstract. This research addresses the design and the utilization of vertical reference features in Augmented Reality (AR) to aid in providing perspective from underground pipes to the ground surface. The study utilizes 3D GIS data and assigns Z coordinates to the Underground Utility Networks (UUNs) using the AHN4 digital elevation data of the Netherlands (and either use standard depth or surveyed depth). However, registering Z coordinates and related data at the vertex level presents data registration issues that Esri's current Utility Network Model (UNM) cannot accommodate. A supplementary data model is required to address this, which can be achieved through vertical reference features. These multifunctional features emphasize the height difference between the pipe and the ground surface and can be used in AR applications to provide better depth clues. Additionally, polygons signatures and flow direction are utilized to enhance visualization.
{"title":"Visualizing of the below-ground water network infrastructure","authors":"Sibe van den Beukel, E. Verbree, P. van Oosterom","doi":"10.5194/agile-giss-4-47-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-47-2023","url":null,"abstract":"Abstract. This research addresses the design and the utilization of vertical reference features in Augmented Reality (AR) to aid in providing perspective from underground pipes to the ground surface. The study utilizes 3D GIS data and assigns Z coordinates to the Underground Utility Networks (UUNs) using the AHN4 digital elevation data of the Netherlands (and either use standard depth or surveyed depth). However, registering Z coordinates and related data at the vertex level presents data registration issues that Esri's current Utility Network Model (UNM) cannot accommodate. A supplementary data model is required to address this, which can be achieved through vertical reference features. These multifunctional features emphasize the height difference between the pipe and the ground surface and can be used in AR applications to provide better depth clues. Additionally, polygons signatures and flow direction are utilized to enhance visualization.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114542255","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-27-2023
Phil Hüffer, Auriol Degbelo, Eftychia Koukouraki
Abstract. With the proliferation of interactive (geo) visualizations, their findability has become increasingly challenging and new tools are needed to facilitate their search. This work is a preliminary exploration of features for (geo) visualization classification and users’ wishes regarding search tools for interactive (geo) visualizations. The features were derived through manual inspection of various websites and the users’ wishes were compiled from laddering interviews with eight participants. The results obtained are relevant to the design of software crawling and classifying online geovisualizations, and presenting the results in a user-friendly way.
{"title":"Designing Search Engines for Interactive Web-based Geovisualizations","authors":"Phil Hüffer, Auriol Degbelo, Eftychia Koukouraki","doi":"10.5194/agile-giss-4-27-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-27-2023","url":null,"abstract":"Abstract. With the proliferation of interactive (geo) visualizations, their findability has become increasingly challenging and new tools are needed to facilitate their search. This work is a preliminary exploration of features for (geo) visualization classification and users’ wishes regarding search tools for interactive (geo) visualizations. The features were derived through manual inspection of various websites and the users’ wishes were compiled from laddering interviews with eight participants. The results obtained are relevant to the design of software crawling and classifying online geovisualizations, and presenting the results in a user-friendly way.","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135602572","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-36-2023
Innocensia Owuor, H. Hochmair
Abstract. Mobility was severely impacted during the COVID-19 pandemic due to travel restrictions, curfews, and closed locations, such as businesses, schools, administrative offices, and other points of interest (POIs). This study uses SafeGraph visitation data to identify which POI categories experienced a significant drop in visitation counts and distance travelled from home between March/April 2019 (pre-pandemic) and March/April 2020 (during the pandemic) in Florida and California. The analysis identified a small set of POI categories for which visitation counts and travel distance did not change significantly. They can be characterized as essential services which are needed for a community’s everyday operations. This study provides insight into the effect of COVID-19 on people’s travel behavior to different types of trip destinations during the pandemic.
{"title":"Use of SafeGraph visitation patterns for the identification of essential services during COVID-19","authors":"Innocensia Owuor, H. Hochmair","doi":"10.5194/agile-giss-4-36-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-36-2023","url":null,"abstract":"Abstract. Mobility was severely impacted during the COVID-19 pandemic due to travel restrictions, curfews, and closed locations, such as businesses, schools, administrative offices, and other points of interest (POIs). This study uses SafeGraph visitation data to identify which POI categories experienced a significant drop in visitation counts and distance travelled from home between March/April 2019 (pre-pandemic) and March/April 2020 (during the pandemic) in Florida and California. The analysis identified a small set of POI categories for which visitation counts and travel distance did not change significantly. They can be characterized as essential services which are needed for a community’s everyday operations. This study provides insight into the effect of COVID-19 on people’s travel behavior to different types of trip destinations during the pandemic.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124490584","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-49-2023
R. Voûte, Hessel Prins, B.-P. Smit
Abstract. The research covers a method to map archaeological objects (cultural heritage) in 3D in an accurate, detailed way with low-cost equipment. This paper deals with a preliminary step, testing the method on an ancient Egyptian object, the temple of Taffeh (Raven, 1996) in the Rijksmuseum van Oudheden (National Museum of Antiquities) in Leiden, the Netherlands. Mapping the temple is a preparation step for accurately and detailed mapping and geo-referencing an ancient Egyptian subterranean tomb. The research was to compare two different techniques on reliability and precision, together describing the accuracy. The proposed techniques in the method are photogrammetry with a full-frame digital mirrorless camera and using an iPhone with LiDAR capability. For this first step, the mapping of the temple, a third technique was added: a more advanced mobile laser scanner (a ZEB Horizon), not being low-cost but interesting for comparison and possibly validation. Of all three techniques the point density was measured to give a first indication of the level of detail. The research shows the method to be promising for use in Egypt. The photogrammetry model was the most accurate, presenting sub-centimetre details of the object while the iPhone LiDAR model was less accurate and lower in point density but faster.
摘要该研究涵盖了一种利用低成本设备精确、详细地绘制考古文物(文化遗产)三维地图的方法。本文处理了一个初步步骤，在荷兰莱顿国家古物博物馆(Rijksmuseum van Oudheden)的一座古埃及文物塔菲神庙(Raven, 1996)上测试了该方法。绘制神庙的地图是对古埃及地下坟墓进行精确、详细的地图绘制和地理参考的准备步骤。该研究比较了两种不同的技术在可靠性和精度上的差异，并共同描述了准确性。该方法中提出的技术是使用全画幅数码无反光镜相机和使用具有激光雷达功能的iPhone进行摄影测量。对于第一步，神庙的测绘，添加了第三种技术:更先进的移动激光扫描仪(ZEB地平线)，成本不低，但有趣的比较和可能的验证。在所有三种技术中，测量点密度是为了给出详细程度的第一个指示。研究表明，这种方法有望在埃及使用。摄影测量模型是最准确的，可以呈现亚厘米级的物体细节，而iPhone LiDAR模型精度较低，点密度较低，但速度更快。
{"title":"Comparison of low-cost techniques for digital cultural heritage preservation of an original Egyptian temple","authors":"R. Voûte, Hessel Prins, B.-P. Smit","doi":"10.5194/agile-giss-4-49-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-49-2023","url":null,"abstract":"Abstract. The research covers a method to map archaeological objects (cultural heritage) in 3D in an accurate, detailed way with low-cost equipment. This paper deals with a preliminary step, testing the method on an ancient Egyptian object, the temple of Taffeh (Raven, 1996) in the Rijksmuseum van Oudheden (National Museum of Antiquities) in Leiden, the Netherlands. Mapping the temple is a preparation step for accurately and detailed mapping and geo-referencing an ancient Egyptian subterranean tomb. The research was to compare two different techniques on reliability and precision, together describing the accuracy. The proposed techniques in the method are photogrammetry with a full-frame digital mirrorless camera and using an iPhone with LiDAR capability. For this first step, the mapping of the temple, a third technique was added: a more advanced mobile laser scanner (a ZEB Horizon), not being low-cost but interesting for comparison and possibly validation. Of all three techniques the point density was measured to give a first indication of the level of detail. The research shows the method to be promising for use in Egypt. The photogrammetry model was the most accurate, presenting sub-centimetre details of the object while the iPhone LiDAR model was less accurate and lower in point density but faster.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132374116","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}
Pub Date : 2023-06-06DOI: 10.5194/agile-giss-4-3-2023
Raphaël Bres, Verónika Peralta, Arnaud Le-Guilcher, T. Devogele, Ana-Maria Olteanu Raimond, Cyril de Runz
Abstract. Cycling practice has been constantly increasing for several years and the COVID crisis has just accelerated the process. Indeed, more and more municipalities have developed new cycle paths to facilitate cycling. Considering this increasing interest for cycling, it makes sense to study how this recent evolution is reflected in the underlying representation of the cycling network in the geographic databases. Main studies analysing the evolution of the road network focus on the motor vehicle network in the major cities of the world. These studies do not seem applicable to cycling network specially to some low population density areas or even to smaller cities. This paper analyses the changes in the cycling network through OSM data from a data freshness perspective. These changes can be either updates from changes in the real-world network or upgrades to the network. To these end, we propose a method using a Monte Carlo simulation (MCS) to analyse the frequency of changes in cycling routes in several areas with different population density, all in the Loire Valley region in France. We also define the cycling network, which is a very complex concept and we explain how it is represented in OSM data and suffers from different data quality issues. Results show that the number of changes across time are similar in areas having a similar population density, while being lower in low population density areas. These phenomena is higher in the cycling network compared to other networks.
{"title":"Analysis of cycling network evolution in OpenStreetMap through a data quality prism","authors":"Raphaël Bres, Verónika Peralta, Arnaud Le-Guilcher, T. Devogele, Ana-Maria Olteanu Raimond, Cyril de Runz","doi":"10.5194/agile-giss-4-3-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-3-2023","url":null,"abstract":"Abstract. Cycling practice has been constantly increasing for several years and the COVID crisis has just accelerated the process. Indeed, more and more municipalities have developed new cycle paths to facilitate cycling. Considering this increasing interest for cycling, it makes sense to study how this recent evolution is reflected in the underlying representation of the cycling network in the geographic databases. Main studies analysing the evolution of the road network focus on the motor vehicle network in the major cities of the world. These studies do not seem applicable to cycling network specially to some low population density areas or even to smaller cities. This paper analyses the changes in the cycling network through OSM data from a data freshness perspective. These changes can be either updates from changes in the real-world network or upgrades to the network. To these end, we propose a method using a Monte Carlo simulation (MCS) to analyse the frequency of changes in cycling routes in several areas with different population density, all in the Loire Valley region in France. We also define the cycling network, which is a very complex concept and we explain how it is represented in OSM data and suffers from different data quality issues. Results show that the number of changes across time are similar in areas having a similar population density, while being lower in low population density areas. These phenomena is higher in the cycling network compared to other networks. \u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"62 Pt B 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132495156","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}
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