nfitz
Superstar
We don't have to go to other countries - the GO/VIA line from Pape to the Don River was also at-grade, and later raised to be grade-separated, by the construction of an embankment.Tokyo. Virtually most elevated lines today are former at grade interurban that had grade crossings removed to improve speed. What most people are claiming to be "impossible" has been done several times before in extremely developed countries.