vital corridor for traffic from Tianjin and Tanggu, the expressway is often full of lorries. Two lorries overtaking each other would shrink average speed limits for the car following behind considerably—from the legal 110 km/h down to approximately 80 km/h or sometimes even 60 km/h. List of exits Symbols: ↗ = exit (→ = only on way out of Beijing), ✕ = closed exit, ⇆ = main interchange; ¥ = central toll gate; S = service area Beijing Section Listed are exits heading southeast as of Beijing (3rd Ring Road) ⇆ (Interchange with 3rd Ring Road) Fenzhongsi ⇆ (Interchange with 4th Ring Road) Nansihuan (S. 4th Ring Road) ✕ 2: Dayangfang, Jiugong -- exit disused as of 2002 and in effect replaced by 5th Ring Road ⇆ (Interchange with 5th Ring Road) 5th Ring Road ¥ Dayangfang S Majuqiao ⇆ 3: Majuqiao, Liuhuanlu ⇆ 4: (Interchange with China National Highway 104) G104, Caiyu Hebei Section Listed are exits heading southeast as of the jurisdictional boundary with Beijing ↗ 5: Langfang Tianjin Section Listed are exits heading southeast as of the jurisdictional boundary with Hebei/Tianjin (Wuqing District) ⇆ 7: (Interchange with China National Highway 103) Hexiwu, Yangcun (G103) S Xuguantun ⇆ 8: (Interchange with Tianjin Outer Ring Road) Yixingbu ⇆ 9: (Interchange with Jinji Expressway) Lutai, Tianjin City ↗ Tianjin Airport S Dongli ⇆ (Interchange with Tangjin Expressway) ¥ Tanggu ↗ Tanggu References Expressways in China Road transport in Beijing Transport in Hebei Road transport in Tianjin