Motorists travelling across the bridge into Edinburgh in the morning during rush hour face an average speed of 24 mph, according to figures obtained by the Conservatives through Freedom of Information.
But Tory transport spokesman Jamie Green said: “The Queensferry Crossing was supposed to revitalise the economies of the surrounding areas, as well as ease congestion and connect the east of Scotland. The disappointing reality is that most motorists using the Queensferry Crossing could be overtaken by a bicycle. These slow speeds throughout our road network are a source of huge frustration to motorists and are an active hindrance to economic growth.”