Hi Mitsudome-san,
That’s a good point. You’re saying, why do we have to choose between OSM XML and OpenDRIVE? Can we not have both?
@JWhitleyWork raised the question with the Lanelet2 authors last year, asking whether Lanelet2 can support a different XSD: XSD/DTD/XML Definition · Issue #3 · fzi-forschungszentrum-informatik/Lanelet2 · GitHub
I see no reason, other than potentially dividing our focus, why we should not support both. The nice thing about supporting both is that they have complementary characteristics, so that we could continue to use the tools that are so easy to make maps for OSM but benefit from closeness to production.
I agree with this idea and I think it is important to stress that OpenDRIVE format will be the preferred format because that is where most of the development effort will go.