HSR Tech info source

A good primer (in English) on HSR systems and rolling stock worldwide, as well as infrastructure such as ballast vs. slab roadbed. Prepared by the British engineering consulting firm Halcrow as a preliminary benchmarking exercise for the Brazilian HSR project (TAV). A big 10mb pdf file:

http://www.tavbrasil.gov.br/Documentaca ... Report.pdf

Thanks for posting the link.