the lhasa-nyingchi highway has been in operation for two years.
the 409.2-kilometer highway links lhasa, capital of southwest china's tibet autonomous region, and nyingchi.
it slashes travel time between the two cities in tibet from 8 hours to 4 hours.
over the past two years, it also helps improve local people's lives thanks to the booming tourism industry that has been benefited from the opening of the highway.
