Metrobús (Line 4), Mexibús (Line III) and trolleybus (Line 2) systems Additional service is provided by Routes 11-B, 11-C, 19-F, and 19-G of the city's public bus system and by Route 168 of the Red de Transporte de Pasajeros network. The station is served by a Centro de transferencia modal (CETRAM), a type of transport hub. As of 2010, over 3,600 transport units, locally known as peseros, were operating in the hub. By 2016, the system estimated that the CETRAM was the most used in the country. Pantitlán is also the closest metro station to the Terminal 2 of the Mexico City International Airport. Exits There are eight exits: West: Miguel Lebrija Avenue and Alberto Braniff Street, Aviación Civil, Venustiano Carranza (Line 1). North: Alberto Braniff Street, Aviación Civil, Venustiano Carranza (Line 5). South: Miguel Lebrija Avenue, Aviación Civil, Venustiano Carranza (Line 5). West: Río Churubusco Avenue, Ampliación Adolfo López Mateos, Venustiano Carranza (Line 9). East: Miguel Lebrija Avenue and 2ª Cerrada de Río Churubusco, Pantitlán, Iztacalco (Line 9). North: Río Churubusco Avenue and Talleres Gráficos Street, Ampliación Adolfo López Mateos, Venustiano Carranza (Line A). Northwest: Río Churubusco Avenue and Guadalupe Victoria Street, Ampliación Adolfo López Mateos, Venustiano Carranza (Line A). South: Río Churubusco Avenue, Pantitlán, Iztacalco (Line A). History and construction The architects were Aurelio Nuño Morales and Isaac Broid. Originally, Line 8 (which runs from downtown Mexico City to Constitución de 1917 station in Iztapalapa) was planned to run from Pantitlán to Indios Verdes station, in Gustavo A. Madero, northern Mexico City. The project was canceled due to potential structural issues it would have caused near the Zócalo zone as it was planned to interchange with Line 2 at Zócalo station. The station was named after Colonia Pantitlán, whose name means "between flags" in Nahuatl. During the Aztec era, the zone, formerly part of Lake Texcoco, was marked with flagpoles to announce to canoeists that it was dangerous to navigate there due to harsh currents. The station's pictogram features a silhouette of two flagpoles with blank flags. Pantitlán station has an accessible service with elevators (Lines 1 and A), access ramps, escalators (Line 9) and tactile pavings and braille signage plates (Lines 9 and A). Line 1 The line was built by Ingeniería de Sistemas de Transportes Metropolitano, Electrometro, and Cometro, the last one a subsidiary of Empresas ICA. The Line 1 station opened on 22 August 1984,