Are both Karamay and Meihekou transportation hubs?
Meihekou Meihekou () is a city of 600,000 in southwestern Jilin province, People's Republic of China. It is a regional transport hub, connecting three railway lines, all of which are single track, and 2 national highways. The city is also a major lorry transshipment point in the region as it is also the junction of two trunk roads, connected to Liaoyuan in the northwest. The city is administratively a county-level city of Tonghua City.
G4 Beijing–Hong Kong–Macau Expressway The Beijing–Hong Kong–Macau Expressway (), commonly referred to as the Jinggang'ao Expressway () is a 2272.65 km that connects the Chinese cities of Beijing and Shenzhen, in Guangdong province, at the border with Hong Kong. The expressway terminates at the Huanggang Port Control Point in Shenzhen, opposite the Lok Ma Chau border control point in Hong Kong. The connection to Zhuhai at the Macau border is made using the spur line G4W Guangzhou–Macau Expressway, which branches off from the main line in Guangzhou. When the expressway was completed it was China's first completed north-south expressway route.