How can I convert Shapefile (.shp) to Lanelet2 (.osm) for Autoware using JOSM?

[wndudwkd003]

Hello,
I am trying to convert a Shapefile (.shp) into a Lanelet2 (.osm) file that can be recognized by Autoware using JOSM.

I have checked this page, hoping to find relevant guidelines or information, but I could not find any detailed instructions—only that the conversion process might be difficult.

In South Korea, high-precision road maps are created and distributed in the form of Shapefiles (Ministry of Land, Infrastructure and Transport's National Geographic Information Service_Precise Road Map). I would like to use these files with Autoware, but I am unsure of the exact steps required to complete the process.

Here is what I have tried so far:

• I converted the Shapefile to a .osm file using JOSM and ran it in Autoware. However, the map did not display.
• I also tried converting the Shapefile to a geojson file and then to a Lanelet2 file, but it did not work either.

It seems I need to take additional steps for Autoware to properly recognize the map, but I am not sure what they are.

Here is the Google Drive to the .osm file I converted. I feel that something is wrong with the file, but I do not know what exactly is incorrect.

Could you please guide me on how to properly convert a Shapefile to an .osm file that can be displayed in Autoware? Also, if there is any way to directly use Shapefiles with Autoware, I would appreciate it if you could share that information.

Thank you!

[maxime-clem]

I tried opening your OSM file with the vector map builder and it showed the following:

Some points have negative xy-coordinates in mgrs coordinate system.
Some points have 100000 or more xy-coordinates in mgrs coordinate system.
The Point is not associated with Linestrings or Polygons.

So it looks like there are 2 problems.

• the positions are wrong or the projection (MGRS code) is wrong.
• the map does not contain any lanelet (only points).

I have no knowledge about Shapefile or their conversion to lanelet so I do not know what could be the problem with the conversion.