At the end of World War II, cars and petrol became widely available, allowing Greystones to gradually expand, filling in space between itself and outlying areas such as Blacklion, Killincarrig and Delgany. However, the popularity of the railway declined; its very existence being in jeopardy during the 1980s, as government cutbacks reduced the service to just a few trains per day. The 1990s brought a revival with the arrival of the electrified DART from Bray, and a much more frequent schedule.