3 18 national highway passes through those cities.

Shanghai-Suzhou-Huzhou-Xuancheng-Wuhu-Chizhou-Anqing-Huanggang-Wuhan-Jingzhou-Yichang-Enshi-Chongqing-Dazhou-Guang 'an-Nanchong-Suining-Ziyang-Chengdu-Ya 'an-Ganzi-Qamdo-Linzhi-Lhasa-Shigatse.

National Highway 3 18 starts from Huangpu District, Shanghai and ends at nyalam county, Shigatse City, with a total length of 5,476 kilometers, passing through Shanghai, Jiangsu, Zhejiang, Anhui, Hubei, Chongqing, Sichuan and Tibet.

Extended data:

From basin to plateau, from sea level to Mount Everest, from freshwater lake to saltwater lake, from rainforest to grassland and desert. Starting from Shanghai People's Square and extending to Friendship Bridge, Zhangmu Town, nyalam county, Shigatse City, Xizang Autonomous Region, the national highway 3 18, with a total length of more than 5,000 kilometers, is a world-famous landscape corridor in China.

It is called "China's Landscape Avenue" and poetically described as "a road longer than memory". National Highway 3 18 passes through Shanghai, Jiangsu, Zhejiang, Anhui, Hubei, Chongqing, Sichuan, Tibet and other provinces and cities, with rich natural landscapes along the way.

The Yangtze River Estuary, Qiantang River, Huangshan Mountain, Lushan Mountain, Shennongjia, Hailuogou Kilometers Ice Waterfall, Yala Snow Mountain and Daocheng are the three major snow peaks. Go west along the 30-degree north latitude line where the national highway 3 18 is located, and you will find these natural landscapes either on both sides of the national highway 3 18 or not far from the north and south of the highway. National Highway 3 18 has become a beautiful bead chain connecting the beautiful scenery of China in series.

Baidu encyclopedia -3 18 national highway