A forest patterns map over a large extent at a high spatial resolution is a heavily computation task but is critical to most regions. There are two major difficulties in generating the classification maps at regional scale: large training point sets and expensive computation cost in classifier modelling. As one of the most well-known Volunteered Geographic Information (VGI) initiatives, Openstr...

Natural disasters like floods are a worldwide phenomenon and a serious threat to mankind. Flood simulations are applications of disaster control, which are used for the development of appropriate flood protection. Adequate simulations require not only the geometry but also the roughness of the Earth’s surface, as well as the roughness of the objects hereon. Usually, the floodplain roughness is ...

OpenStreetMap offers an underexplored source of worldwide geospatial data useful to urban researchers. This study uses the OSMnx software to automatically download and analyze 27,009 US street networks from OpenStreetMap at metropolitan, municipal, and neighborhood scales—namely, every US city and town (N = 19655), census urbanized area (N = 497), and Zillow-defined neighborhood (N = 6857). It ...

Recent years have seen new ways of collecting geographic information via the crowd rather than organizations. OpenStreetMap (OSM) is a prime example of this approach and has brought free access to a wealth of geographic information – for many parts of the world, for the first time. The strong growth in the last few years made more and more people consider it as a potential alternative to commer...

In order to employ the Web as a medium for data and information integration, comprehensive datasets and vocabularies are required as they enable the disambiguation and alignment of other data and information. Many real-life information integration and aggregation tasks are impossible without comprehensive background knowledge related to spatial features of the ways, structures and landscapes su...

Increasing mobility of people and goods is more and more leading to congestions inside road networks. From the perspective of traffic management, the aim is therefore to visualize real-time traffic information within routing -andmobility services and to prepare them for the end user, in order to utilize the existing road network more efficiently in the context of a dynamic routing. Within the O...