Gil Carmichael puts forward a plan to upgrade the North American rail network to provide a cost-effective and efficient system, linking cities, ports and airports to transport goods and people.

This could be a way to break the logjam in the current debate over whether or not to build high-speed railways.

IN all my years involved in the transport industry, I have never witnessed a greater degree of conversation and dissenting ideas about how to fix North America's massive transport infrastructure problems...