1> Please Do Not Use any word to express your frustration here.
2> No one is bound to give answer to any query.This site gives equal opportunity to all bloggers for giving answer or decline any question.
3> Response can come any time even after two(or more) days.
What makes any track fit for high speed rail ?
Soil,...
more...
Track Thickness & Type,
Track Ballast(Cushioning),
Bridge,
Signal System,
Communication System,
LC Gate system,
Gradient/Curves,
Route Section,
Administrative Decision
etc....