Taitung – Hualien double-tracking works begin
https://www.railwaygazette.com/infrastructure/taitung-hualien-double-tracking-works-begin/64033.article
Taipei-Taitung is one of the rare domestic routes connecting cities on main island. That's because most of the domestic flights were defeated by high speed rail.
But, travel time reduction and increasing frequency on East Coast Section must be threatening for the rare air routes.
