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Copy file name to clipboardExpand all lines: blog/2023-alpha/2023-07-26-alpha.0.mdx
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@@ -4,39 +4,42 @@ slug: 2023-07-26-alpha.0
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### Highlights
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Overture `2023-07-26-alpha.0` is a first release version of open map data, establishing a baseline for future releases by the Overture Maps Foundation. The data is available for use under the designated licenses for each theme. Users should note that while Overture intends to release open map data on a regular cadence in the future, the date of subsequent releases has not been established yet.
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Overture `2023-07-26-alpha.0` is a first release version of open map data, establishing a baseline for future releases by the Overture Maps Foundation. The data is available for use under the designated licenses for each theme. Users should note that while Overture intends to release open map data on a regular cadence in the future, the date of subsequent releases has not been established yet.
Copy file name to clipboardExpand all lines: blog/2023-alpha/2023-10-19-alpha.0.mdx
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@@ -4,7 +4,8 @@ slug: 2023-10-19-alpha.0
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### Highlights
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Overture `2023-10-19-alpha.0` is now available. This release includes several improvements to the data quality and coverage as well as updates for data currency. There are two new additions of note:
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Overture `2023-10-19-alpha.0` is now available. This release includes several improvements to the data quality and coverage as well as updates for data currency. There are two new additions of note:
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-**Base Theme**: A new Base theme that provides three context data subtypes. These can be used with the other themes to allow developers to build complete maps using any Overture release.
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-**Buildings Theme**: Stable identifiers have been added to 1.6M buildings in 8 cities to demonstrate how Overture will implement stable identifiers (named Global Entity Reference System or GERS).
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:::note
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A sample set of 1.6M buildings from OpenStreetMap and Esri have been assigned an initial GERS ID for demonstration purposes. These IDs are 32 character strings. By referencing these other datasets to this data release, we can match GERS IDs to external datasets and demonstrate how GERS can enable ID-based joins between two geospatial datasets. These are located in the following cities:
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- United States: Seattle, Washington; Macon, Georgia; Charleston, South Carolina; Spokane, Washington
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- Canada: Kingston, Ontario
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- Netherlands: Leeuwarden, Friesland
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**Administrative Boundaries (Admins) Theme**
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The Admins theme includes multiple locality types:
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- Countries formed from OpenStreetMap relations, primarily admin_level=2, with few exceptions such as admin_level=3 French Polynesia.
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- First-level subdivisions under the country which was mapped from OpenStreetMap admin_level depending on country, in most countries admin_level=4.
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- Second-level subdivisions under the country which was mapped from OpenStreetMap admin_level depending on country, in most countries admin_level=6.
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- Cities, Town, Villages, Neighborhoods... based on place=* tag. In most cases these are just points. When relation with place=* tag exist we provide polygon geometry.
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- Cities, Town, Villages, Neighborhoods... based on place=_ tag. In most cases these are just points. When relation with place=_ tag exist we provide polygon geometry.
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It also includes administrative boundaries representing borders of countries, first-level subdivisions and second-level subdivisions. The Administrative Boundary data is in the Overture Maps data schema for Admin.
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Second-level subdivision did not undergo worldwide inspection of quality so some missing or wrong data is expected. All first-level subdivisions have `type=state` and all second-level subdivisions have `type=county` which is not always true; we plan to address this issue in future releases. We plan to use admin_level=8,9,10 to add polygons to cities, town, villages and other localities when available depending on individual country mapping.
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**Places Theme**
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This release has over 57M place records. The Places theme in this release includes several modifications to improve the accuracy and quality of the dataset:
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- Increased deduplication on significant landmarks by revising the screening criteria for signals based on check-ins only
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- Removal of places determined to be non-existent
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- Address normalization bug fix that was yielding incorrect pin locations. In addition, support for website, phone and category was added to the Microsoft sourced data.
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**Transportation Theme**
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The Transportation theme includes the following improvements:
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- Collective OSM changes through September 15th, updated and converted to Overture's Schema.
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- Addition of Linear Referenced features, enabling the description of properties that apply along only portions of a segment.
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- Over 1.3 million turn restrictions worldwide
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:::note
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There are several missing properties in this data release that will be added in future releases:
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- Only includes road segments made from Ways that include a ‘highway’ tag
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- Non-geometric scoping properties are not included
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- Turn and Access restrictions are not included
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- Lane information is not included
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- Some language/scripts are not included in names properties
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:::note
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The data includes some provisional Global Entity Reference System (GERS) data which is used to express relationships between road segments. This may not be representative of the final GERS format and should not be the basis for long-term development work.
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Data in the Transportation theme is licensed under ODbL.
Copy file name to clipboardExpand all lines: blog/2023-alpha/2023-11-14-alpha.0.mdx
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### Highlights
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Overture `2023-11-14-alpha.0` is now available. This is an incremental release that includes several improvements to the data quality and coverage as well as updates for data currency. More information about these additions is available in the relevant sections below.
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