Today we celebrate the International Day for #DisasterRiskReduction. HeiGIT offers a growing set of tools and services that support humanitarian aid during and before disasters. Examples include work in the context of the Missing Maps initiative, like conceptualising and extending microtasking apps like MapSwipe, as well as services for analysing MapSwipe data and making it [...]
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Posted in Events, Services, Software on Oct 7th, 2019
In 2015, MapSwipe began as a solution to a complex question: how do we better identify where communities and populations are, allowing mapping to be more efficient and effective?
Using a simple mobile app, volunteers are able to swipe through a series of satellite images, tapping in areas where they find features. MapSwipe can be used [...]
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A new tutorial for the 3DGeo’s LiDAR simulation software HELIOS has been posted to the repository’s wiki page. It shows a simple way to generate scenes of real landscapes including building and vegetation models as well as terrain from NASA JPL’s SRTM data.
When applied to OSM data in the city of Vienna, the obtained 3D [...]
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Posted in Events, OSM, Services, Software, Teaching on Sep 3rd, 2019
First of all, thanks to everybody who attended our ohsome lab on OpenStreetMap History Analysis at last weeks FOSS4G in Bucharest. Even though there were eleven (!) tracks running in parallel, and our lab was not in the same location as the program track, we had some interested participants. Their affiliation ranged from public institutions [...]
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Posted in Services, Software on Aug 27th, 2019
We’re happy to announce a new version of our QGIS Plugin ORS Tools. Additionally to the core services of giving easy access to our directions, isochrone and matrix API’s, the plugin now allows users to optimize their trips via a Traveling Salesman service.
The openrouteservice API’s included a Vehicle Routing Optimization Machine since quite a while, [...]
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Posted in Events, OSM, Services, Software on Aug 26th, 2019
This week, the annual conference FOSS4G (Free and Open Source Software for Geospatial) is taking place in Bucharest, Romania. The conference is organized by The Open Source Geospatial Foundation (OSGeo) and attracts over 1000 professionals from industry and academia each year. The HeiGIT Big Spatial Data Team will present the ohsome platform and related tools such as the [...]
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We are delighted to invite you to join a workshop on open-source routing with time-dependent restrictions, see http://giscienceblog.uni-hd.de/2019/04/17/project-tardur-starts-open-source-routing-with-time-dependent-restrictions/.
The workshop is taking place on Friday before the State of the Map conference, 20th September 2019 in Heidelberg. It is free of charge and will last from 9:00 to 16:00 with a lunch break in between. Detailed [...]
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Posted in Services, Software, Traffic on Jul 23rd, 2019
Routing optimization in a humanitarian context
Routing optimization generally solves the Vehicle Routing Problem (a simple example being the more widely known Traveling Salesman Problem). A more complex example would be the distribution of goods by a fleet of multiple vehicles to dozens of locations, where each vehicle has certain time windows in which it can operate and [...]
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Land is a spare resource so it makes sense to think about how to use it most efficiently. This leads to the problem of land use allocation under consideration of trade-offs. Multi-objective optimization algorithms are a tool quantify the trade-offs by estimating the Pareto-optimal land use allocations. Often, constraints in the solution space have to [...]
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Todays data production, maintenance, and use have changed in the last years. While these tasks were reserved to professionals until a few years ago, the situation has changed. This is no different in the geographical domain. Volunteers gather general information in Wikipedia and geographical information in OpenStreetMap. Twitter users provide not only text snippets but [...]
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