sentences:  In 1955-56 the bridge was broadened 2 m, giving space to new bicycle lanes.The increasing traffic following WWII continued to strain the capacity of Västerbron.Much of the north-southern traffic flow through the old city centre remained confined to the bridge until the inauguration in 1966 of Essingeleden, the motorway running parallel to Västerbron about 1.5 km to the west.