Mexico City Metro Line 9

Mexico City Metro Line 9 is one of the 12 metro lines built in Mexico City, Mexico.

General information
Line 9 was the 8th metro line to be built in the network, built between 1985 and 1988. (Line 8 started operations until 1994). It is identified by the color dark brown, and runs from East to West in an almost straight fashion. It was built in order to support Line 1, providing a redistribution alternative for east–west commuters. It starts in the multi-line transfer station Pantitlán and ends at the western neighborhood of Tacubaya, both stations also served by Line 1. As a comparison, the section between Pantitlán and Tacubaya is served by 19 stations in Line 1, whereas Line 9 has only 12, which would translate in a faster alternative.

Line 9 is built in its easternmost section above the Rio Churubusco and Rio de la Piedad Avenues. Then it reaches an underground route near the Magdalena Mixiuhca Complex and it continues under the Eje 3 Sur until reaching the Tacubaya zone, where the last station is built under Jalisco avenue. As part of the first expansion plans in the 1980s the line is expected to turn west after Jalisco Avenue to reach Observatorio Station.

History
Due to the subsidence of the city, there have been problems with the elevated portion of the line (which runs from Pantitlán to Velódromo stations). Following the collapse of a Mexico City Metro overpass in 2021, these concerns increased when commuters reported plainly visible deformations in the bridge connecting the Pantitlán and Puebla stations. As of February 2023, authorities had reinforced Line 9's overpass with metallic supports. The city government informed that a small section between Pantitlán and Puebla stations will be rebuilt between November 2023 and April 2024 as a result of the problem's persistence.

Chronology

 * 26 August 1987: from Pantitlán to Centro Médico.
 * 29 August 1988: from Centro Médico to Tacubaya.

Rolling stock
Line 8 has had different types of rolling stock throughout the years.


 * Alstom MP-68: 1987–1996; 1996–2008
 * Concarril NM-73: 1987–2008
 * Concarril NM-79: 2008–present
 * Alstom MP-82: 1987–1994
 * Bombardier NC-82: 2008–present
 * Concarril NM-83: 2013–present
 * CAF NE-92 2018–present

As of 2020, out of the 390 trains in the Mexico City Metro network, 29 are in service in Line 9.

Station list
The stations from west to east:

Proposed extension
Being Tacubaya a provisional terminal, Line 9 had an original project for being expanded to the west to reach Observatorio station as Line 1 did. After the announcement for the Toluca–Mexico City commuter rail, an expansion towards Observatorio station was announced in 2014. As of 2021, the project is still under planification.

Ridership
The following table shows each of Line 9 stations total and average daily ridership during 2019.

Tourism
Line 9 passes near several places of interest:


 * Magdalena Mixhuca Sports City, Olympic Park used for the 1968 Summer Olympics
 * Palacio de los Deportes, indoor sports arena and concert venue.
 * Autódromo Hermanos Rodríguez, motorsport race track venue of the Formula One Mexican Grand Prix.
 * Foro Sol, sports and concert venue.