China's rejuvenation' Bullet Trains Are the World's Fastest

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As China is so large and so populated these very fast trains are very suitable - though I would think they need to be supplemented by a fairly dense network of slower local trains. I suspect that in most areas they don't have local trains. Maybe they will come later.

I think China does have an extensive network of local trains , generally packed to the gills. These HSR trains are to add capacity , though I suspect as many of their customers would come from the airlines, as from the conventional trains.

David Benton wrote:These HSR trains are to add capacity

This is a point often forgotten in the debate about high speed rail in developed countries such as UK. Opponents often argue that the cost (financial, environmental, social, etc) of high speed rail is not worth it just to shave a few minutes off a journey time (as it would be in a smallish country like UK; obviously in huge countries it is a question of saving several hours and providing a viable alternative to air travel). However they forget that the classic rail networks in small densely populated countries are already overcrowded, and the new high speed railways are as much to add capacity as to add speed. The long distance trains and passengers which migrate to the new high speed lines free up capacity on the classic lines for freight and local passenger trains.