Aerial photo taken on March 25, 2020 shows vehicles passing through Xiaogan East toll station of the Beijing-Hong Kong-Macao expressway in Xiaogan, central China's Hubei Province. The virus-hit Hubei Province has lifted outbound travel restrictions in all areas except the capital city Wuhan. (Xinhua/Hu Huhu)

A car is going to pass through Daxin toll station of the Beijing-Hong Kong-Macao expressway in Dawu County, central China's Hubei Province, March 25, 2020. The virus-hit Hubei Province has lifted outbound travel restrictions in all areas except the capital city Wuhan. (Xinhua/Hu Huhu)

A truck passes Xiaogan East toll station of the Beijing-Hong Kong-Macao expressway in Xiaogan, central China's Hubei Province, March 25, 2020. The virus-hit Hubei Province has lifted outbound travel restrictions in all areas except the capital city Wuhan. (Xinhua/Hu Huhu)

Aerial photo taken on March 25, 2020 shows vehicles passing through Xiaogan East toll station of the Beijing-Hong Kong-Macao expressway in Xiaogan, central China's Hubei Province. The virus-hit Hubei Province has lifted outbound travel restrictions in all areas except the capital city Wuhan. (Xinhua/Hu Huhu)

Aerial combo photo shows Daxin toll station of the Beijing-Hong Kong-Macao expressway with traffic restrictions on Feb. 28, 2020 (L) and the toll station after traffic restrictions were lifted on March 25, 2020 (R). The virus-hit Hubei Province has lifted outbound travel restrictions in all areas except the capital city Wuhan. (Xinhua/Hu Huhu)

Aerial photo taken on March 25, 2020 shows vehicles running on an expressway in Xiaogan, central China's Hubei Province. The virus-hit Hubei Province has lifted outbound travel restrictions in all areas except the capital city Wuhan. (Xinhua/Hu Huhu)