Analysing the positional accuracy of GNSS multi-tracks obtained from VGI sources to generate improved 3D mean axes

Mozas‐Calvache, Antonio Tomás; López, Francisco Javier Ariza

doi:10.1080/13658816.2019.1645335

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…(2) Ground control. By receiving the above signals, it can accurately determine the satellite's orbit coordinates and clock differences, monitor whether its operation is normal, and inject new satellite orbit coordinates into the satellite to carry out necessary satellite orbit correction and adjustment control [4].…”

Section: Global Navigation Satellite System (Gnss)mentioning

confidence: 99%

Application of surveying and mapping technology in airport construction

Lan¹,

Chen²,

Tang

et al. 2019

E3S Web Conf.

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Due to the accelerating urbanization process, land resources are tight, the construction environment becomes more and more complex and severe. In particular, the future airport will be built on the mountain or be constructed reclamation airport, the terrain and geological conditions of the airport construction are complex and the climate is harsh. These all raise higher requirements for the accuracy and safety of airport planning, design and construction. This paper combines the mapping technology with the key links of airport construction, and elaborates on the key technologies, which provides a good reference for related projects and is of great significance for improving the efficiency and quality of airport construction.

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Section: Global Navigation Satellite System (Gnss)mentioning

confidence: 99%

Application of surveying and mapping technology in airport construction

Lan¹,

Chen²,

Tang

et al. 2019

E3S Web Conf.

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show abstract

GIScience I: The rise, fragmentation, and future of VGI

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2024

Progress in Human Geography

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Since the inception of volunteered geographic information in 2007, this area of study has seen a proliferation of terms and concepts representing diverse forms of user-generated geographic data and systems. Despite the rich development of VGI (volunteered geographic information) in geography, recent trends indicate a disjointed research field. This progress report critically examines the trajectory of VGI, mapping its journey from an emergent set of practices to a fragmented research domain. Moving forward, it is up to the research community to either reignite the interaction and integration required to build a subdiscipline of GIScience or allow this research domain to extinguish.

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The quality of OpenStreetMap in a large metropolis in northeast Brazil: Preliminary assessment of geospatial data for road axes

et al. 2020

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This paper evaluates the data quality of road axes using the OpenStreetMap (OSM) collaborative mapping platform. OSM was chosen owing to the abundance of data and registered contributors (~ 6 million). We assumed the OSM collaborative data could complement the reference mappings by its quality parameters. We used the cartographic quality indicators of positional accuracy, thematic accuracy, and completeness to validate vector files from OSM. We analyzed the positional accuracy of linear features and we developed the automation of the positional accuracy process. The tool verified the completeness of road axes and thematic accuracy. The positional accuracy of linear features was also used, performed to obtain a range of scales, which reflected the characteristics of mapped areas and varied from 1:22,500 to 1:25,000. The completeness of road axes was 82% of the checked areas. By evaluating the thematic accuracy, we found that the absence of road axes toponymy in editions caused errors in the OSM features (i.e., 58% of road axes without information). As such, we concluded that collaborative data complements the reference cartography by measuring the heterogeneity of information in various regions and filtering the OSM data, despite its being useful for certain analyses.

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Analysing the positional accuracy of GNSS multi-tracks obtained from VGI sources to generate improved 3D mean axes

Cited by 3 publications

References 18 publications

Application of surveying and mapping technology in airport construction

Application of surveying and mapping technology in airport construction

GIScience I: The rise, fragmentation, and future of VGI

The quality of OpenStreetMap in a large metropolis in northeast Brazil: Preliminary assessment of geospatial data for road axes

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