Year honours list for the work they did. They helped survivors out, removed bodies, and got the transport system up and running, to get the millions of commuters back out of London at the end of the workday. On 1 June 2008, the drinking of alcoholic beverages was banned on Tube and London Overground trains, buses, trams, Docklands Light Railway and all stations operated by TfL across London but not those operated by other rail companies. Carrying open containers of alcohol was also banned on public transport operated by TfL. The Mayor of London and TfL announced the ban with the intention of providing a safer and more pleasant experience for passengers. There were "Last Round on the Underground" parties on the night before the ban came into force. Passengers refusing to observe the ban may be refused travel and asked to leave the premises. The GLA reported in 2011 that assaults on London Underground staff had fallen by 15% since the introduction of the ban. TfL commissioned a survey in 2013 which showed that 15% of women using public transport in London had been the subject of some form of unwanted sexual behaviour but that 90% of incidents were not reported to the police. In an effort to reduce sexual offences and increase reporting, TfL—in conjunction with the British Transport Police, Metropolitan Police Service, and City of London Police—launched Project Guardian. In 2014, Transport for London launched the 100 years of women in transport campaign in partnership with the Department for Transport, Crossrail, Network Rail, the Women's Engineering Society and the Women's Transportation Seminar (WTS). The programme was a celebration of the significant role that women had played in transport over the previous 100 years, following the centennial anniversary of the First World War, when 100,000 women entered the transport industry to take on the responsibilities held by men who enlisted for military service. COVID-19 pandemic impacts In 2020, during the COVID-19 pandemic in the United Kingdom, TfL services were reduced. All Night Overground and Night Tube services, as well as all services on the Waterloo & City line, were suspended from 20 March, and 40 tube stations were closed on the same day. The Mayor of London and TfL urged people to only use public transport if absolutely essential, so that it could be used by critical workers. The London Underground brought in new measures on 25 March