bolshoy obukhov cable-stayed permanent bridge on the ` kad `ring road and the movement of cars on it. saint-petersburg. russia

architecture artery automobile bolshoy bridge cable cablestayed capital car cargo cars city construction current day embankment hot kad landscape megapolis movement neva non north obukhov oktyabrskaya passenger permanent peter petersburg reservoir ring river road russia saint saintpetersburg season stayed structure style summer tourism traffic travel urban view warm water