of two competing rhythms. In the technoparade subculture they call this the Verwirrungsgebiet ("overlap zone") by analogy to a concept in radio frequency engineering. The street allows for a type of dancing that would be literally impossible in cramped German nightclubs, and the breadth of some people's dancing is further exaggerated as they throw their clothes outwards. Some in the crowd generally climb up to any high point that can possibly be scaled, more and more as the event continues. The spirit is usually continued at after-parties in the local nightclubs, sometimes including unofficial after-parties at venues having no official connection to the parade. Problems Technoparades are not without problems: They are regarded by some participants as a license to consume illegal drugs. A few technoparades have been exploited by makers of pornographic films. There is an inherent danger of accidents as people climb on and off moving vehicles. Technoparades usually have big crowds and few toilets, especially because the companies that rent out chemical toilets will not happily rent to technoparades; the crowds tend to climb on the roofs of the toilet structures, which are not built to withstand the weight. Some well-constructed toilets do exist, but not enough to serve the entire technoparade. Major events World's largest Street Parade, Zurich around 1,000,000 participants annually as of 2018 Love Parade, previously the world's largest with 1.5 million in 1999 Germany 5 big technoparades of the 1990s and early 2000s: Love Parade, Berlin / Ruhr area (1989–2010) Union Move, Munich (1995–2001) Generation Move, Hamburg / Kiel (1995–2007) Reincarnation, Hanover (1995–2006) Vision Parade, Bremen (2002–2006) Parades with a political character: Fuckparade, Berlin (since 1997) Zug der Liebe, Berlin (since 2015) Nachttanzdemos (many cities) Small town or onetime moves: Night Move, Cologne (1994) Future Parade, Brockhagen (1997–2003) Beatparade, Empfingen (since 1998) Numerous others Austria Freeparty, Vienna (1994–1999) Unite Parade, Salzburg (1999–2008) Loveparade, Vienna (2000–2006) Freeparade, Vienna (2001–2010) Snow Move, Sölden Switzerland Street Parade, Zurich (since 1992) Jungle Street Groove/Beat on the Street, Basel (since 1995) Antiparade, Zurich (since 1996) Lake Parade, Geneva (1997–2015) Tanz Dich Frei (Dance yourself free), Bern (2011–2013) Other FFWD Heineken Dance Parade, Rotterdam (Netherlands) (1997–2007) Techno Parade, Paris (France) (since 1998) Love Parade, Santiago, Chile / Tel Aviv / Mexico City (2000–2006) Budapest Parade, Budapest (Hungary) (2000–2006) Elektro Parade, Oporto (Portugal) (2001–2003) Cityparade, Ghent/Liège/Brussels/Mons/Charleroi (Belgium) (2001–2006) Freedom Parade, Tartu (Estonia) (2002–2009) LovEvolution, San Francisco/Oakland (United States) (2004–2011) Gallery