Scholars have studied street networks in many ways. However, there are somelimitations to the current urban planning/street network analysis literature. Toaddress these challenges, this study presents a new tool to make the collection ofdata and creation and analysis of street networks simple, consistent, andautomatable. OSMnx is a new Python package that downloads administrativ...

Finding relevant geospatial information is increasingly critical because of the growing volume of geospatial data available within the emerging "Big Data" era. Users are expecting that the availability of massive datasets will create more opportunities to uncover hidden information and answer more complex queries. This is especially the case with routing and navigation services where the abilit...

Volunteered Geographic Information (VGI), or geospatial crowdsourcing, is where citizens (volunteers) contribute data and information about the earth and environment that is explicitly or implicitly georeferenced and then disseminated via collaborative projects such as OpenStreetMap or social media such as Flickr, Twitter, and Facebook. VGI popularity is due in no small part to citizens making ...

OpenStreetMap, a crowdsourced geographic database, provides the only global-level, openly licensed source of geospatial road data, and the only national-level source in many countries. However, researchers, policy makers, and citizens who want to make use of OpenStreetMap (OSM) have little information about whether it can be relied upon in a particular geographic setting. In this paper, we use ...

Sketch maps are an intuitive way of expressing geospatial information. They contain objects which represent real world geographic features, relations between these objects, and oftentimes symbolic and textual annotations (Blaser [2]). These elements enable us to use sketch maps to communicate about our environments and to reason about our actions in those environments. In this way sketch maps p...

Main road features extracted from remotely sensed imagery play an important role in many civilian and military applications, such as updating Geographic Information System (GIS) databases, urban structure analysis, spatial data matching and road navigation. Current methods for road feature extraction from high-resolution imagery are typically based on threshold value segmentation. It is difficu...

The collaborative nature of activities in Web 2.0 projects leads to the formation online communities. To reinforce this community, these often rely on happenings centred around data creation and curation activities. We suggest an integrated framework directly assess community member performance a quantitative manner applied it case study OpenStreetMap. A set mappers who participated both field ...