Overpass turbo

Overpass Turbo is a website to execute requests towards Overpass API and to watch the result on a map. Martin Raifer has developed Overpass Turbo, and I'm grateful to him overpass turbo for the idea and the software.

It acts as a database over the web: the client sends a query to the API and gets back the data set that corresponds to the query. Unlike the main API , which is optimized for editing, Overpass API is optimized for data consumers that need a few elements within a glimpse or up to roughly 10 million elements in some minutes, both selected by search criteria like e. It acts as a database backend for various services. Please see the full user's manual for a detailed introduction. It is highly recommended to get familiar with various features via overpass turbo , an interactive Web-based frontend.

Overpass turbo

Objects in the database are made up of single nodes, ways which are a series of single nodes joined together , and relations which are more complex structures where ways and nodes are combined. Tags are used to label these data points by describing the features each one possesses. In this post we will see how to build different types of query to find information via the Overpass Turbo website. Overpass Turbo comes with a built in Query Wizard that makes constructing queries easier. The queries are converted into the more complex Overpass Query language before being sent to the API. To set the bounding box i. Tags come as a key-value pair. Literally everything with the tag key railway has been returned. Railway stations, bridges, crossings, platforms, signal boxes and other features have all shown up on the map. Running the query again gives a slightly different result. The display in the bottom corner of the map says that within the map area there are nodes and ways that match this query. This is the actual code sent to the API and for more complex queries it is sometimes necessary to edit it. The [timeout] tag tells Overpass to stop querying the database after 25 seconds. Large requests can cause your connection to time out, so this tag imposes a limit although you can adjust it as needed.

The request can be fixed by out geom ; more overpass turbo are listed in the section about geometry :. The [timeout] tag tells Overpass to stop querying the database after 25 seconds.

This is a collection of queries that provides a simple tutorial that introduces the core features and syntax of the Overpass QL query language. Each of the queries introduces a specific feature of the language, starting from querying for simple points of interest through to more complex spatial queries. Each query introduces a specific feature of the language, with subsequent queries showing variations of how to use that feature. Or how to combine it with other features to do more complex queries. Read the descriptions and then review the query.

OpenStreetMap is a Wikipedia of maps. It is a massive geographic database that anyone can use. I have written separate article describing OpenStreetMap in a bit more detailed way if you want to know more. It has mapped roads, buildings, parks, shops, forests, nature reserves, universities, police stations, beaches, prisons, geysers, reefs, hospitals, administrative borders, caves, lighthouses and many more. This data is available in full for free under a friendly ODbL license. It is possible to use this data for a variety of projects. For example, image below is a 3D printed map for the blind based on OpenStreetMap data.

Overpass turbo

The Overpass "Query Wizard" helps you do this more easily. To get information from a database you send it a "query" a question in a language the computer can understand the "query language". Writing Overpass queries requires knowledge of the Overpass query language , and even then can sometimes be quite tedious, repetitive work.

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Here are some ideas where using overpass turbo can be a handy tool while mapping:. The setting comes into effect with the execution of the next request or the same request again. Overpass Turbo is a website to execute requests towards Overpass API and to watch the result on a map. See more details about bbox below. Under normal circumstances, this is no problem. Who is doing the tagging? Translating Translations are managed using the Transifex platform. There are some settings for customizing turbo. Opposed to nodes or ways , the details of the relation then are not shown by a click on the object, but in the object's bubble there is just a link to the relation's presentation on the main server. Overpass Turbo has its own conversion module for GeoJSON, and Martin is wary of the user confusion if both mechanisms are active in parallel.

This is a collection of queries that provides a simple tutorial that introduces the core features and syntax of the Overpass QL query language. Each of the queries introduces a specific feature of the language, starting from querying for simple points of interest through to more complex spatial queries. Each query introduces a specific feature of the language, with subsequent queries showing variations of how to use that feature.

After signing up, you can go to overpass-turbo's project page , select a language and click Translate now to start translating. These resource limits cannot be set to arbitrary high values: each Overpass API instance may refuse to extend them above some threshold depending on server capabilities or current server load , or the query may just fail with an error message and non-OK HTTP server error status. Leave a Reply Cancel reply. Overpass API - Other languages. See example prerendered views on the right. Each query introduces a specific feature of the language, with subsequent queries showing variations of how to use that feature. This also shows how the variable stops is necessary to make the query possible. Thus, we have a complete query to find ways with arbitrary tags within a bbox. In the wizard it looks like this:. Objects appearing as points can have a yellow or a red interior. Martin Raifer has developed Overpass Turbo, and I'm grateful to him both for the idea and the software. You can safely assume that you don't disturb other users when you do less than 10, queries per day and download less than 1 GB data per day [1]. Navigation menu Personal tools English Create account Log in. Notifications Fork Star But if you have asked for a museum version different from the current version, then the data from the main page is still the current version and thus differs from the data returned from your request.