French TGV Sud-Est (1981)
France opened its first high-speed rail line between Paris and Lyon in September 1981, cutting travel time from about 4 hours to 2 hours. The line carried more passengers than projected in its first year.
The TGV proved high-speed rail could attract passengers away from air and road travel in Europe.
It spawned a network that now covers most of France and connects to neighboring countries.
Portugal's Lisbon-Porto line follows the same model: a first high-speed line that proves the concept and anchors a wider network.
