<i>In a proper high-speed system that would be more like 180MPH</i><p>The current record for highest average speed on a rail line is China&#x27;s 176mph average Shijiazhuang-Zhengzhou. Prior record holder was 173mph on the Champagne-Ardenne to Lorraine run on the LGV Est corridor of the TGV.<p>All high-speed rail systems have stretches where they go faster than that, but <i>average</i> speeds are nowhere near what you&#x27;re proposing. Unless, of course, your argument is that no &quot;proper high-speed system&quot; exists anywhere in the world today.