A repository of street centerline datasets to aid in improving OpenStreetMap.
This repository is intended to maintain two things: a collection of data sources for street centerlines and information describing how to convert those centerlines into a visible tileset for use as an overlay while editing OpenStreetMap data. This is roughly modeled after the OpenAddresses.io project, which does a similar thing for address point data.
The sources/ directory includes small JSON files that describe where to get centerline data, what method should be used to get that data (e.g. downloading a file over HTTP, scraping an ESRI layer endpoint, etc), and what the useful data fields are in that source.
Once the raw source data is downloaded, it needs to be rendered somehow. The JSON files in source/ will include information about which source data columns contain the important information. The process will copy those fields over to consistently-named columns so that centerline attributes can be rendered world-wide.
Once the source data is converted into a consistent format, the plan is to use tippecanoe and Mapbox to render image tiles that can be used in JOSM or iD.