China, host to the world's longest high speed railway system, is all hands in for building a high speed railway in the US between Las Vegas and the greater Los Angeles area.Just days before President Xi Jinping's visit to the US, private company Xpresswest and China Railway International USA inked a deal that would lay out a double track spanning 185 miles between Las Vegas and Victorville, CA, which lies some 80 miles outside of the LA metropolitan area next to the Mojave Desert. The track, sections of which run adjacent to the I-15 highway, will not disturb highway or foot traffic.The project will cost an estimated $12.7 billion and will take three years to build, according to China's 21st Century Business Herald. Xpresswest placed round-trip fare at $89 and says that it'll be enough to cover operating and building costs. The train will reportedly run at 150 mph and get passengers between Victorville and Las Vegas within 80 minutes—it's a notch slower than Beijing's high-speed rail (186 mph) but potentially faster than Amtrak's Acela Express line—and it'll shave off an hour and a half that'd usually be lost to driving if the fare's worth the time.China's currently in a track-laying race with Japan—the country's rail firms only have General Electric as a rival for the nation's largest industry, and it's already made inroads in other countries, with contracts from Massachusetts, Russia, and Tanzania. When a rail from the outskirts of LA to Vegas will pay itself off, however, remains to be seen.