in 1997, but owing to violent conflicts with the concept Fraport let residents' groups and environmentalists participate in the process to find a mutually acceptable solution. In 2000, a task force presented their conclusion which generally approved a new runway, but of shorter length (only 2.8 kilometres compared to the other three 4-kilometre-long runways), which would serve as a landing-only runway for smaller aircraft. Additional requirements included improved noise protection arrangements and a strict ban on night flights between 11 pm and 5 am across the whole airport. In 2001, Fraport applied for approval to build the new runway, with three possible options. The conclusion was that a runway north-west of the airport site would have the least impact on local residents and the surrounding environment. The plans were approved by the Hessian government in December 2007, but the requested ban on night flights was lifted because it was argued that an international airport like Frankfurt would need night flights, especially for worldwide freight transport. Construction of the new long Runway Northwest in the Kelsterbach Forest began in early 2009. In 2012, the website Airport Watch reports weekly protests have been occurring at the airport since the opening of a fourth runway a year previously. Developments since 2011 The new runway officially went into operation on 20 October 2011, with an aircraft carrying Chancellor Angela Merkel, performing the first landing on 21 October. The centre line separation from the existing north runway is about . This allows simultaneous instrument landing system (ILS) operations on these two runways, which has not been possible on the other parallel runways, which do not meet the minimum separation for ILS operations. This allowed the airport to increase its capacity from 83 to 126 aircraft movements per hour. On 11 October 2011, the Hessian Administration Court ruled that night flights between 11pm and 5am (the so-called Mediationsnacht) are no longer allowed at Frankfurt Airport after the inauguration of the new runway, and therefore overrode the approval from the Hessian government from 2007 which allowed 17 scheduled flights per night. On 4 April 2012, the German Administrative Court confirmed the decision of the Hessian Administration Court, banning night flights between 11pm and 5am. To handle the predicted passenger amount of about 90 million in 2020, a new terminal section adjacent to Terminal 1 for an additional six million passengers opened on 10 October 2012. It is