A car runs on the Duobu bridge in Nyingchi, southwest China's Tibet Autonomous Region, Oct. 28, 2019. By the end of 2020, thanks to an improved transportation network coupled with higher incomes in Tibet, there were 656,703 registered vehicles and 613,682 licensed drivers across the southwestern Chinese region. (Xinhua/Purbu Zhaxi)

Cars drive on a street in Lhasa, capital of southwest China's Tibet Autonomous Region, July 4, 2019. By the end of 2020, thanks to an improved transportation network coupled with higher incomes in Tibet, there were 656,703 registered vehicles and 613,682 licensed drivers across the southwestern Chinese region. (Xinhua/Li Xin)

Photo taken on July 5, 2019 shows cars parked at a residential community in Lhasa, southwest China's Tibet Autonomous Region. By the end of 2020, thanks to an improved transportation network coupled with higher incomes in Tibet, there were 656,703 registered vehicles and 613,682 licensed drivers across the southwestern Chinese region. (Xinhua/Chogo)

Cars drive on a street in Lhasa, southwest China's Tibet Autonomous Region, July 4, 2019. By the end of 2020, thanks to an improved transportation network coupled with higher incomes in Tibet, there were 656,703 registered vehicles and 613,682 licensed drivers across the southwestern Chinese region. (Xinhua/Purbu Zhaxi)