Feed on
Posts
Comments

Tag Archive 'OSM'

In a previous blog post we performed a conceptual compliance analysis between OSM data and several tagging-guidelines using the OSHDB API. The results were visualized in a line chart, comparing the different compliance ratio over several months. The following analysis focuses on a spatial representation of the conceptual compliance. It is [...]

Read Full Post »

This blog post is the start of a series of posts, which describe what you are able to do using the ohsome framework developed at the Heidelberg Institute of Geoinformation Technology (HeiGIT). OpenStreetMap (OSM), the biggest open map of our world, offers not only the current state of the data, but the whole historical evolution [...]

Read Full Post »

Christmas is just around the corner and the disastermappers heidelberg are organizing another workshop on the use of OpenStreetMap data. As last year they will present different ways to craft personal Christmas gifts based on OpenStreetMap features.
Additionally they will also show how to use open satellite imagery archives captured by Sentinel and Landsat mission. Together we [...]

Read Full Post »

Nowadays, several research projects show interest in employing volunteered geographic information (VGI) to improve their systems through using up-to-date and detailed data. The European project CAP4Access was one of the successful examples of such international-wide research projects that aimed to improve the accessibility of people with restricted mobility using crowdsourced data. In this project, OpenStreetMap [...]

Read Full Post »

Conceptual compliance measures to what degree contributors of volunteered geographic information (VGI) are using proposed tagging-standards. Here, we look into OpenStreetMap (OSM) as the most well-known example for VGI. In OSM the most important tagging guideline is defined by its wiki. In addtion, OSM editors like iD or JOSM provide presets (default options to adhere to tagging standards).
This [...]

Read Full Post »

This month we kicked off our new project Waterproofing Data in São Paulo, Brazil together with partners from Warwick University and Brazilian stakeholders such as Cemaden (National Early Warning and Monitoring Centre for Natural Disasters / Centro Nacional de Monitoramento e Alertas de Desastres Naturais) or local Universities, City of São Paulo, Fundacao Getulio Varga etc. We [...]

Read Full Post »

We’re pleased to announce the next version of our QGIS plugin to access the most popular functions of openrouteservice. in QGIS.
OSM Tools is the only QGIS plugin to access advanced features like dynamic routing, isochrones or origin-destination matrices with a few mouse clicks.

You can choose to either use point layers from your QGIS project or choose [...]

Read Full Post »

Data quality and fitness for purpose can be assessed by data quality measures. Existing ontologies of data quality dimensions reflect, among others, which aspects of data quality are assessed and the mechanisms that lead to poor data quality. An understanding of which source of information is used to judge about data quality and fitness for [...]

Read Full Post »

The GIScience Research Group at Heidelberg University and the Heidelberg Institute for Geoinformation Technology (HeiGIT) are happy to share the their GIScience github repository contains now already over 50 open source repositories and it’s still growing. These contain results from several research projects and in particular also some very active long term activities. Most of the tools [...]

Read Full Post »

Within the European FP7 project “CAP4Access“, we studied the usage of crowdsourced geographic information (and more specifically OpenStreetMap data) for improving accessibility in selected European regions. This 3 year research study led to several implementations and extensions of Open Source GI solutions with respect to OSM data quality assessment as well as wheelchair routing and [...]

Read Full Post »

Older Posts »