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HeiGIT and MapAction at FOSS4G 2021: Using the ohsome quality analyst to support humanitarian mapping

Last week, the annual conference FOSS4G (Free and Open Source Software for Geospatial) has been taken place online. The conference is organized by The Open Source Geospatial Foundation (OSGeo) and attracts over 1000 developers, users, decision-makers and observers from a … Read More

ohsome Region of the Month – August

Hello and welcome back to the ohsome Region of the Month-blog post series where you can read about potential use cases of the ohsome API and maybe even get inspired to send some requests of your own. If you are … Read More

Analysing the Impact of Large Data Imports in OpenStreetMap

OpenStreetMap (OSM) is a global mapping project which generates free geographical information through a community of volunteers. OSM is used in a variety of applications and for research purposes. However, it is also possible to import external data sets to … Read More

ohsome region of the month: Which country has the longest coastline?

The ohsome region of the month blog post series is back and since it’s summer this time we’re taking you to the coast. Before that happens, if this is your first blog post of this format you might want to … Read More

The ohsome quality analyst goes public on Github with new release 0.3.0

The ohsome quality analyst (short: OQT) has been introduced at the beginning of this year and today we are proud to announce two updates. First, we released the new version 0.3.0 which includes new OSM layers and a brand new … Read More

ohsomeHeX provides access to OSM feature history

Did you ever wonder how your city was mapped over time, how geometries were changed and refined, how mistakes were added and corrected again? Then read on: ohsomeHex has a great new feature for you – the individual object’s zoom-in-history-view. … Read More

Ohsome Region of the Month Building-Information Analysis

Welcome back to our blog post series ”ohsome Region of the Month” where you can find information on potential applications of the ohsome API. If you’re new to this format you can also read some of the former blog posts … Read More

Ohsome Green Region of the Month

Welcome back to the ohsome region of the month format where you can learn and get inspiration about potential applications of the ohsome API. This time we looked at forest-related information in four different Canadian regions looking for the green … Read More

ohsome-py: Python Package for OSM history analytics published

As a little Easter present, we published the first version of the ohsome-py Python package today. ohsome-py helps you extract and analyse OpenStreetMap history data using the ohsome API and Python. It handles queries to the ohsome API and converts … Read More

Behind the scenes of the ohsome quality analyst (OQT)

The #ohsome quality analyst (short: OQT) has been online and accessible through its web-interface now for quite some weeks already (see the introductory blog post as a reference). The website is not the only access point to the OQT though. … Read More

Flood Impact Assessment on Road Network and Healthcare Access at the example of Jakarta, Indonesia

Extreme natural events create catastrophic situations for cities and their populations. Due to climate change and anthropogenic activities, the number and intensity of these events has steadily increased at the global scale. Floods are the most common natural disaster worldwide, … Read More

An ohsome Railway Network Visualization and Analysis

Welcome back to another #ohsome blog post written by our awesome student assistent Sarah! This time we will look at the completeness of railway network data of one specific city in OpenStreetMap, as well as its development. For this we … Read More

Introducing the Ohsome Quality analysT (OQT)

The Ohsome Quality analysT (short OQT) is the name of a new software implemented by HeiGIT that is based on the #ohsome framework. Its main purpose is to compute quality estimations on OpenStreetMap (OSM) data. Any end user such as … Read More

ohsome street network analysis part 2

Welcome to part 2 of the #ohsome street network analysis. If you haven’t read the first part yet, you can do so following this link. As promised, this week we are performing a simple tag completeness analysis, where we are … Read More

ohsome street network analysis part 1

Here we go again: The first #ohsome blog post of 2021. This time, one of our new student assistants Sarah was dealing with street networks and their quality in order to find out which of the selected regions has the … Read More

Neu: Globale OSM History Analysen mit ohsomeHeX v1.0

Erhalten Sie mit ohsomeHeX wertvolle Einblicke in die Qualität und den Entwicklungsprozess von OpenStreetMap-Daten! (see for english version here) Das HeiGIT Big Data Team freut sich zur Exploration der Veränderungen der globalen Daten in OpenStreetMap nun eine Version 1.0 von … Read More

OSM History Analysis with ohsomeHeX v1.0

Get valuable insights into the quality and development process of OpenStreetMap data with ohsomeHeX! We are proud to announce a new release that provides a completely redesigned UI that makes it easier to keep track of all relevant information. Choose … Read More

How to become ohsome part 8 – complex analysis with the magical filter parameter

It’s CITY CYCLING time – some of you may even be involved in your municipality – a good opportunity to have a look on the OpenStreetMap (OSM) cycling ways in our city Heidelberg. Welcome to part 8 of our how … Read More

ohsome API v1.1 – changes and new functionalities

Recently we’ve had the first minor release 1.1 of the ohsome API, which brings several new features and upgrades. In the following lines we want to present to you the most important ones. Prior to 1.1, when you were requesting … Read More

A Comprehensive Framework for Intrinsic OpenStreetMap Quality Analysis among Most Cited Paper in Transactions in GIS

We are happy to share that our paper “A Comprehensive Framework for Intrinsic OpenStreetMap Quality Analysis” (Barron, Neis, Zipf 2013) belongs to the top 5 most cited papers of the international journal “Transaction in GIS” (TGIS). Only recently we became … Read More