Three track types are compared using the vibro-acoustic model: an existing slab track with embedded UIC54 rails, a newly designed, acoustically optimized slab track with a less stiff rail embedded in a stiffer elastomere, and, as a reference, a ballasted track.
With this trade-off in place, the first rapid bus lanes of Curitiba ended up costing 50 times less than rail.
But as Adonis's successor as transport secretary, Patrick McLoughlin, would later admit, the money being spent on HS2 would not have otherwise gone to less grandiose rail improvement schemes.
Several contributions have already provided simulation analyses, with practical matches and verifications, based on more or less small/local rail networks which are digitally represented through detailed descriptions of their track layouts, signalling systems, block sections, operating rolling stock etc.
A third, little-known and less used, rail connection between Russia and China was built farther south, between Hunchun (in China's Jilin province) and Russian Makhalino (a station on the Ussuriysk Khasan North Korean border line, 41 km before Khasan).
He wishes that the television ads mattered less, and rails that the winners in America's political game are inevitably passionless: "Hollowness", he says, "is, apparently, an advantage".
Less-publicized rails to trails and roads to trails projects have taken place in previous decades, though none have made quite the splash the High Line has.
According to the Royal Bank of Scotland, 46% of goods in Europe are transported by road, 37% by sea and 11% by rail; less than 1% goes by air.
This flexibility can make light rail less expensive, and service can be brought closer to the origins and destinations of travelers.
There are few industries where such a Draconian regulatory measure would be tolerated, much less welcomed, but rail is a special case.
