The MapRoulette Blog

Liking and Flagging Challenges

Published: in Feature by .

MapRoulette was designed to be an open, self-governing platform for OSM improvement tasks. This has worked well, but from time to time, changes are made in OSM based on MapRoulette tasks that were not clearly formulated, or the assumptions behind the task are wrong. On the other hand, we have Challenges in MapRoulette that are […]

Tutorial: tagging parking=surface efficiently with a MapRoulette Tag-Fix Challenge

Published: in Tutorial by .

Americans love cars. More than 90% of households own one, more than 20% of households own 3 or more. Cars stand still most of the time and for that, we need huge amounts of parking. Image source: Flickr Commons The simplest way to map a parking area in OSM is to draw an area and […]

MapRoulette at State of the Map

Published: in Event, News by .

If you’re reading this, chances are that you are excited about the upcoming State of the Map conference in Firenze, Italy! Whether you are attending in person or virtually, lots to look forward to. I will be presenting on “10 years of MapRoulette” on the first day of the conference. The presentation is coming together […]

Introducing Challenge Health Measures

Published: in Uncategorized by .

I want everyone to enjoy fixing and improving OpenStreetMap with MapRoulette. Whenever I talk to MapRoulette users, I ask them what the one single thing is that I could do to improve their time spent using MapRoulette. The answer I get by far the most frequently is: “Please do something about old and irrelevant tasks!” […]

State of the Map 2021 Report: A Global Community, and Task-Based Editing is hot!

Published: (Updated: ) in Event, , by .

State of the Map, the OpenStreetMap conference, just wrapped up yesterday in its second online year. It was, as always, an exciting opportunity for the community and data users to connect and exchange ideas and new developments from the OpenStreetMap world. If I had to point out one single highlight, it would have to be […]

New MapRoulette Challenge to verify level_crossing tagging correctness

Published: (Updated: ) in Challenge by .

This is a guest post by Alex Iannicelli and Yunzhi Li from Facebook. Throughout the United States there are many places where railways intersect with highways to create “Level Crossings”. Representing these intersections in OSM correctly can improve renderings and routing algorithms. To help improve these intersections we recently created a MapRoulette challenge to verify level_crossing […]

MapRoulette v3.7.7 Changelog

Published: (Updated: ) in News, , by .

One of the notable updates to MapRoulette is the ability to see and add comments in the Task Bundle widget. Here’s a mini ‘how to’! Open and edit one of your challenges. Click on ‘Add widget’ located on the top right and select ‘Comments.’ Select ‘Comments,’ and voila, recent comments from your challenge tasks are […]

Guest Post: Tracing Reservoirs in the USA

Published: in Uncategorized by .

This post was written by OSM and MapRoulette user Brian M. Sperlongano, who also created the Project this post talks about. Did you know that there are tens of thousands of potentially unmapped reservoirs in the USA? An early import from the Geographic Names Information System (GNIS) added a massive numbers of reservoirs, however, these […]

Add Schools in the Philippines

Published: in Uncategorized by .

Public schools in the Philippines are more than just a place for learning; they also play a secondary role as the de facto community centers, designated precincts during elections, and are essential temporary shelters during emergencies. The OSM Philippines community aims to validate school locations via the MapRoulette challenge called: “Add schools in the Philippines.” […]

Water Geometry in Fairfield County (Connecticut) challenge by roptat

Published: (Updated: ) in Challenge, , , by .

“Water Geometry in Fairfield County (Connecticut)” is a challenge created by roptat, who resides in Connecticut, USA. Anyone can participate in this challenge as it requires only aerial imagery. The challenge’s goal is to improve the geometry of water features such as lakes and rivers that often cross other objects such as roads and buildings. […]