The İstanbul–Ankara Main Line has a quadruple track section between Etimesgut and Kızılay in Ankara, Turkey.
track | Quadruple Alliance (disambiguation) | Quadruple Alliance | 2009 UCI Track Cycling World Championships | bonus track | race track | United States high school national records in track and field | 8-track tape | Short track speed skating | short track speed skating | Hialeah Park Race Track | Old Dalby Test Track | Oaklawn Park Race Track | Race track | NCAA Women's Outdoor Track and Field Championship | USA Outdoor Track and Field Championships | Short track speed skating at the 2010 Winter Olympics | Road & Track | NCAA Women's Indoor Track and Field Championship | Kokoda Track campaign | 4-track | 2013–14 UCI Track Cycling World Cup | War of the Quadruple Alliance | USA Track & Field | Track (CD) | NATO Double-Track Decision | FIL World Luge Natural Track Championships 1979 | FIL European Luge Natural Track Championships 1978 | 2013 USA Outdoor Track and Field Championships | Wollongong to Thirroul Bike Track |