Road network data from OpenStreetMap (OSM) is the basis of various real-world applications such as fleet management or traffic flow estimation, and has become a standard dataset for research on route planning and related subjects. The quality of such applications and conclusiveness of research crucially relies on correctness and completeness of the underlying road network data. We introduce met...

This study extends recent investigations of onscreen marking (OSM) in the Hong Kong public examination context. It examines whether marker attitudes, which have shown increasing acceptance of OSM since it was first introduced in 2007, continue to develop this acceptance in a different context. In 2012, all pubic examinations were marked onscreen. While previous studies investigated the attitude...

Over the last decade, volunteered geographic information (VGI) has become established as one of the most relevant geographic data sources in terms of worldwide coverage, representation of local knowledge and open data policies. Beside the data itself, data about community activity provides valuable insights into the mapping progress which can be useful for estimating data quality, understanding...

OpenStreetMap (OSM) is a very well known and popular Volunteered Geographic Information (VGI) project on the Internet. In January 2013 OSM gained it’s one millionth registered member. Several studies have shown that only a small percentage of these registered members carry out the large majority of the mapping and map editing work. In this paper we discuss results from a social-network based an...

The term „Electronic Service Market“ (ESM) can be decomposed into the parts „market“, „service“ and „electronic“, i.e., the allocation mechanism of the market is used to co-ordinate service utilisation in a computer-supported way. This definition restricts that for electronic markets from [Schm93] to the provision and consumption of on-line available services. In an ESM, all transaction phases ...

We present a system that allows blind users to explore both indoor maps and large-scale OpenStreetMap data on a tactile graphics display. Additional information about the map object that is being touched by the user’s finger is provided by text-to-speech output. Different styles allow to concentrate on specific aspects of the map. First tests show that the system can help blind users to get an ...

The earthquake that struck Haiti on January 12, 2010 catalyzed a nascent set of efforts in then-emergent “volunteer technology communities.” Among these was the response from OpenStreetMap, a volunteer-driven project that makes geospatial data free and openly available. Following the earthquake, remotely located volunteers rapidly mapped the affected areas to support the aid effort in a remarka...

We develop a web service for route finding in OpenStreetMap (OSM) following an activity-centred approach: the aim is not only to assist the user in travelling from A to B, but also to perform a series of specified activities along the way. This is particularly important e.g. for electric mobility, where activities can take place while the battery of the car is recharging. For specifying activit...