However, the continued development of road transport and the economic crises of the 1930s saw a slow decline in the use of narrow-gauge railways across the country. The advent of the Second World War pushed many struggling enterprises into bankruptcy as labour and materials were diverted to the war effort. During and immediately after the war, the majority of the remaining lines closed: between 1946 and 1950 the Ffestiniog, Corris, Ashover Light, Rye and Camber and Eaton Hall railways all closed. Many industrial lines did not survive the war years.