Shanghai is a major hub of China's expressway network. Many national expressways (prefixed with G) pass through or terminate in Shanghai, including G2 Beijing–Shanghai Expressway (overlapping G42 Shanghai–Chengdu), G15 Shenyang–Haikou, G40 Shanghai–Xi'an, G50 Shanghai–Chongqing, G60 Shanghai–Kunming (overlapping G92 Shanghai–Ningbo), and G1501 Shanghai Ring Expressway. In addition, there are also numerous municipal expressways prefixed with S (S1, S2, S20, etc.). Shanghai has one bridge-tunnel crossing spanning the mouth of the Yangtze to the north of the city.
In the city center, there are several elevated expressways to lessen traffic pressure on surface streets, but traffic in and around Shanghai is often heavy and traffic jams are commonplace during rush hour. There are bicycle lanes separate from car traffic on many surface streets, but bicycles and motorcycles are banned from most main roads including the elevated expressways.