OpenStreetMap and other free vector data for route creation?

[_o_OOOO_oo-Kanawha]

Over at Elvas Tower, a brand new Open Rails route editor is being developed to ultimately replace the old MSTS one.

The author thinks of using the free and open source OpenStreetMap vector maps as a base map to lay track upon, etc.

rCFUdHk.jpg

Would such an accurate vector map be useable in Railworks too somehow? One does get more precise layout and alignment than with stitched together satellite or aircraft imagery from Google Earth.
Also, there should be free API and source code thereof available to integrate the vector data in your application.