GIScience Logo
HeiGIT Logo
3DGeo Logo

GIScience Blog

Category: Services

  • How to become ohsome part 5: Measuring numbers of users editing different OSM features

    Besides dealing with a snake, making quality assessments, or generating comparable statistics, one needs to know how to handle the whole functionality provided by the ohsome API to really become ohsome. And to achieve exactly that, this blog presents the last missing entry point to the API from the current toolkit, namely the /users resource. With its help you can receive aggregated…

  • MapSwipe for Change Detection Analysis

    The Humanitarian OpenStreetMap Team (HOT) , the Heidelberg Institute of Geoinformation Technology (HeiGIT) , and the wider MapSwipe Community started working on an MapSwipe extension to monitor changes in satellite imagery. The goal of the two-month project is to extend the app with new functionalities that would allow the users to compare two satellite images…

  • OSHDB: a framework for spatio-temporal analysis of OpenStreetMap history data

    Earlier we published several blogposts introducing the ohsome platform and its parts (e.g. the ohsome API for example, which was often showcased here in the blog) and its backbone the OSHDB (very recently version 0.5 was published). A recent open access journal article gives even more background to the system, as shown below: Raifer, M,…

  • Projekt “TARDUR” startet: Open-Source-Routenplanung mit zeitabhängigen Beschränkungen

    Zeitabhängige Sperrungen und Nutzungsbeschränkungen von Straßen werden bislang in keiner frei verfügbaren Software zur Routenplanung genutzt. In dem im März gestarteten Projekt “TARDUR – Temporal Access Restrictions for Dynamic Ultra-Flexible Routing” gehen die Universität Heidelberg und die Firma GraphHopper dieses Problem an. Das Projekt wird im Rahmen der Förderrichtlinie Modernitätsfonds (“mFUND”) mit insgesamt 100.000 Euro…

  • meinGrün Umfrage: Wofür nutzen Sie städtische Grünflächen?

    Alle Jahre wieder blühen die Kirschbäume vor unserem Institutsgebäude in voller Pracht und laden Passanten allen Alters ein zum Verweilen. Städtische Grünflächen wie diese leisten einen wichtigen Beitrag zur urbanen Lebensqualität, indem sie viele Funktionen wie Naturerfahrung, sozialen Austausch und Erholung ermöglichen. Jedoch eignet sich nicht jeden Grünfläche gleichermaßen für jeden Einzelnen und jede Aktivität.…

  • Project “TARDUR” starts: Open-source routing with time-dependent restrictions

    Time-dependent restrictions and temporal road closures are so far not considered in any freely available software for route planning. Heidelberg University and the company GraphHopper aim to address this issue in their joint project “TARDUR – Temporal Access Restrictions for Dynamic Ultra-Flexible Routing”. The project started in March and is supported by the Federal Ministry…

  • The New York Times + openrouteservice

    In a recent article by the NYTimes the openrouteservice API isochrones interface was consumed to derive regions of reachability from subway stations in New York City. Their findings show that two-thirds of 550.000 residents who have difficulty walking live far from an accessible subway station. Head over to this very interesting analysis which you can find…

  • Preview of new Openrouteservice Client for Web and Mobile

    A first preview on the new client for Openrouteservice has been released as a public beta. It is available at https://openrouteservice.org/map/ . Wit the features implemented until now the new map client is already functional. `There are some important functionalities to be implemented yet`, but it is already useful for routing. It is also important…

  • Humanitarian Mapathon for Mozambique and Venezuela during European Night of Geography

    Current community efforts for Cyclone Idai in Mozambique and the Refugee Response in Venezuela again show the need and impact of humanitarian mapping. Already before the start of the semester, on April 5th, disastermappers heidelberg will organize a Mapathon to support these efforts – this time in scope of the european Night of Geography! The…

  • How to become ohsome part 4: handling a snake in a notebook on another planet

    Welcome back to a new episode of how to become ohsome. Yes, you’ve read the heading correctly. We are really talking about a snake in a notebook on another planet. If you are familiar with one of the most used programming languages in the GIS world, you might already know by now which snake is…

  • openrouteservice for Disaster Management: Response to Cyclone Idai

    The Humanitarian OpenStreetMap Team (HOT) has launched an activation to support humanitarian operations responding to the impact of Cyclone Idai. These efforts were already supported by more than 1500 mappers of the global OpenStreetMap (OSM) community that contribute geodata about the affected regions in Mozambique and the surrounding countries. The team at HeiGIT (Heidelberg Institute for…

  • Die Sendung mit der Maus: Zu Fuß durch Deutschland

    Das HeiGIT unterstützt das Bundesamt für Kartographie und Geodäsie (BKG) dabei eine Frage aus der “Die Maus”-Redaktion zu beantworten: Welcher ist Deutschlands nördlichster & südlichster Ort, und wie groß ist die fußläufige Distanz dazwischen? Der Beitrag war am 23.03.2019 in der “Frag doch mal die Maus Show” zu sehen. Wollen Sie wissen, wie weit es…