It's common technology in the rest of the world. The two never meet.
You usually go above ground. Germany sometimes has level crossings. But this is not new; we're talking of 28 years now in France, and a 100% safety record. This is old news. Siemens just did Moscow-Petersburg, again entirely grade-separated, with no chance of auto meeting train. That is the common way it's been done for decades. It's nothing new. We have the experts at Bombardier, at Alstom, at Siemens, all in this country.