by Avanti West Coast, TransPennine Express, LNER and CrossCountry while platforms 3 to 6 are used mainly by services to Lanark, Edinburgh, East Kilbride, Barrhead, Kilmarnock, Carlisle, Girvan, and Stranraer. Platforms 7–10 are used by services which operate along the Cathcart Circle and also Neilston and Newton, but other services are known to use them as well, while platforms 11–15 are used mostly by services to Ayr, Largs, Ardrossan, Gourock, Wemyss Bay and Paisley Canal, with platform 11 being used as a relief platform for Avanti West Coast services if platforms 1 or 2 cannot be used. 2009/10 expansion To accommodate the cancelled Glasgow Airport Rail Link plans, the platforms were renumbered. Platform 11a (the previous West Bank Siding, on the bridge over the Clyde) was renumbered 12, whilst 12 & 13 were renumbered 14 & 15 respectively. In September 2009 the former platform-level car park and passenger drop-off area was taken out of use and the platform over the Clyde (recently renumbered 12) was removed. Two new platforms were created between 11 and 14, being brought into use in May 2010. There is no plan to replace indoor parking or passenger drop-off within Central station. The existing multi-storey parking facility on Oswald Street and on-street parking surrounding Central station remain, with passenger drop-off having moved to surrounding streets. During Cyclone Bodil in December 2013, the glass roof of the station was broken by flying debris. Barriers Automatic ticket barriers were installed at Glasgow Central and three other city-centre stations from 2011 as part of a crackdown on fare-dodging to increase ticket revenue. This follows barriers being erected at Queen Street Station in 2004, ending ScotRail's "open stations" policy under which staffed and previous yellow ticket automatic barriers had been scrapped during the 1980s to encourage more passengers; tickets were checked on trains instead. ScotRail finalised negotiations with Network Rail over the project in June 2010, with the project completed in February 2012, covering High Level Platforms 3 to 15 and Low Level Platforms 16 and 17. Platforms 1 and 2 were left without barriers, as they are mostly used by long-distance express services with a high proportion of passengers carrying heavy luggage. Station tours Following the success of the doors open day event in summer 2013, tours of the station several times each week began in November 2014. These 90-minute tours cover the roof, plus the catacombs, vaults, and