Staff members check the condition of trolley tracks at the Wulingyuan scenic area in Zhangjiajie City, central China's Hunan Province, Jan. 24, 2019. The Wulingyuan scenic area has strengthened the inspection and safeguard on the transport infrastructures to secure the safety of tourists during the seven-day Spring Festival holidays starting from Feb. 4. (Xinhua/Wu Yongbing)