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Great diary as usual!

Given the enthusiasm for noise reduction, I wonder about all these "modern" designs that have very similar "open" undercarriage layouts as the stuff in museums.

Couldn't you have something like a barrier wall, say 200 mm high, at the edge of the roadbed, and then a curtain coming down from the side of the cars that overlaps the wall? It would provide a much better seal for sound control, and also offer significant airflow control for high speed operation. I would think that you could get the horizontal gap down to under 100 mm, perhaps...

Just because Stephenson thought up a roadbed layout in 1825 doesn't mean we can't improve on it a bit...

by asdf on Mon Oct 1st, 2012 at 11:29:09 AM EST

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